ASTR109 WINTER 2008 BULLETIN BOARD

MESSAGE #70. Thu Nov 27 5:25:44 2008. Malcolm Carr wrote:

Yes Doug, I saw them Wednesday evening, they were very close together, with Venus being really bright.

MESSAGE #69. Tue Nov 25 4:06:28 2008. Prof. Doug Hamilton wrote:

All lonely here at the ASTR109 website ...

If anyone is listening, Venus and Jupiter appear as beautiful bright stars close together in the direction of the just-set Sun! Take a look over the next several weeks as they change their relative positions in the sky.

Astronomy is so cool! :)

MESSAGE #68. Mon Nov 10 4:36:38 2008. Malcolm Carr wrote:

Best wishes to all in todays exam.

I thought you may be interested to know that this month's Beginners Astronomers Group will be held at 7:30pm Tuesday 11th November (tomorrow!!), in St Ninians Church Lounge (9 Puriri St, Riccarton, behind main church).

And next week (Tuesday 18th November @ 7:30pm) there will be a fun quiz night in room 105, Law School, University of Canterbury.

MESSAGE #67. Sun Nov 9 18:05:00 2008. Angelique Zidich wrote:

Good luck for every one on the exam

MESSAGE #66. Wed Nov 5 16:06:39 2008. Matthew Henley wrote:

MESSAGE #65. Wed Oct 22 17:05:36 2008. Prof. Doug Hamilton wrote:

Wow - break it up guys or at least take it offline. All homework and quizzes are now graded and ready for pickup in Rutherford, room #803. To study most effectively, I'd suggest gathering up all of your assignments, notes, and class handouts and making sure that you have an excellent understanding of that material. It is also a very effective strategy to summarize the entire course in 8-10 pages of condensed notes. This forces you to decided what is most important and then allows you to focus your efforts on the most important material. As an added bonus, you can look back at your summary notes years from now and remember what we learned.

If you missed some problems on homework assignments or missed entire assignments, it would be best to do some research. Talk to other students, search on the web, or come by my office with specific questions.

Study hard, and I hope that you all do well on the final exam!

MESSAGE #64. Tue Oct 21 21:56:15 2008. Jordan Craig wrote:

yeah i wouldnt put it past you henley

MESSAGE #63. Mon Oct 20 20:49:26 2008. Michael Burrell-Smith wrote:

when did this blog get so violent that sum1 cnt ask a simple question and not get th piss ripd out of him.... my advice is to getting the answers is pick up ur tests then wiki the questions that way u will gt the answers and benifit more than sum1 jst gvin u the answers... or do wot the fuk u wnt and ill jst sit here with my 209/250 ..mu hahahah

MESSAGE #62. Mon Oct 20 19:49:06 2008. Matthew Henley wrote:

maybe i like first years

MESSAGE #61. Mon Oct 20 18:35:23 2008. Jordan Craig wrote:

Hey andrew i dont think henley is tining his way through uni, remember this is like his 7th year here and he is still doing a 100 level paper

MESSAGE #60. Mon Oct 20 17:02:58 2008. Matthew Henley wrote:

listen andrew this is about hamburger and his lack of effort. lets not make this about me. if i have seen further its because i stood on the shoulders of giants

MESSAGE #59. Sun Oct 19 23:00:48 2008. Andrew Berryman wrote:

Yo Henley, some of us cant tin our way through uni, and only turn up to the second half of the subject!!

MESSAGE #58. Sun Oct 19 20:42:54 2008. Matthew Henley wrote:

jason hamburger should do some work and stop looking for ppl to give him all the answers. bloody hell man. you should know the answers if you were paying attention in class.

MESSAGE #57. Thu Oct 16 21:35:40 2008. Jason Hamburger wrote:

Is there any chance of getting the solutions to the quizs and the homework ?

MESSAGE #56. Sun Oct 5 21:17:52 2008 . Malcolm Carr wrote:

We are trying to organise another night out at Canterbury Astronomical Society's observatory at West Melton, hopefully with better skies this time. The Society said they can organise one of the following nights for the class: Wed Oct 8, Monday Oct 13, Wed Oct 15 (or perhaps Wed Oct 22 for local students only)

They need to know approx. numbers & preferred evening, so they know how many CAS staff they need to have there to help.

Please let Jack know, if you are interested in going.

MESSAGE #55. Thu Oct 2 17:37:33 2008 . Malcolm Carr wrote:

There is a free public lecture next Wednesday, which sounds interesting:

Are we alone? - the search for life beyond earth Click to add this event to your calendar

Date: Wednesday 8 October Time: 6:00 p.m. to 7:00 p.m. Location: C3 lecture theatre Contact: For further information regarding this event, please contact Joan Gladwyn by sending email to joan.gladwyn@canterbury.ac.nz or by calling 03 364 2178 Audience: The general public

The Physics and Astronomy Department is hosting a seminar by Dr Charles Lineweaver entitled "Are we alone? - the search for life beyond earth".

An astrobiology public lecture will be given on Wednesday 8th October at 6:00pm in the Central Lecture theatres at the University of Canterbury. The talk is entitled “Are We Alone? – the Search for Life Beyond Earth”. Dr Lineweaver is Senior Fellow of the Planetary Science Institute, and is in the Research School of Earth Sciences at Australian National University, and is in New Zealand for a few days only.

MESSAGE #54. Mon Sep 29 23:44:22 2008 . Chenae Ferguson wrote:

Hey, the last 3 years exam papers at http://library.canterbury.ac.nz/exams/index.php just search for astr109

MESSAGE #53. Mon Sep 29 1:43:00 2008 . Hamish Cattell wrote:

Are there any past exam papers for astr109?

MESSAGE #52. Thu Sep 25 18:22:07 2008 . Katie Pettengell wrote:

Hi guys, Im heading to the townsend observatory tonight (last night open i think...) and just wanted to say if there is anybody else who wants to go, but would rather not go alone, your more than welcome to join me..... my number is 0277478937

MESSAGE #51. Thu Sep 25 2:31:01 2008 . Malcolm Carr wrote:

If any of you would like an email copy of "Monthly Sky Charts" which includes a star chart & notes about interesting objects that can be seen from New Zealand for each month.

Send an email to: Alan Gilmore, Mt John Observatory at alan.gilmore@canterbury.ac.nz

MESSAGE #50. Wed Sep 24 2:09:06 2008 . Prof. Doug Hamilton wrote:

Hi Everyone,

I am continueing to post HW assignments (#7 coming soon) and lecture summaries (last three weeks went up today). I'm not sure how the grading is going, but as soon as the graders send me their marks, I'll post those too. Quiz #4 is on Sept. 26 now!

DH

MESSAGE #49. Tue Sep 16 20:43:50 2008 . Prof. Doug Hamilton wrote:

There was a small, but successful trip to the Banks peninsula on Sunday! We had clear skies, but they were not so dark because a full Moon rose just shortly after sunset. Jeanette may lead another trip soon and we'll give more advanced notice next time. And we'll make sure that the pesky Moon won't be around next time!

And I still have 2 unclaimed quiz #3 papers! If one of these is yours, you can claim it by bringing a handwriting sample up to my office in Rutherford #814. :)

MESSAGE #48. Sat Sep 13 21:50:51 2008 . Prof. Doug Hamilton wrote:

A little last minute, but it looks nice tonight (Sunday Sept. 14), and Jeanette says that the Banks Peninsula farm trip is on! Bring lots of warm clothes, blankets, and binoculars if you have them. We will be returning to Christchurch late (midnight? 1am?). We'll meet at the UCSA parking lot by the bus stop at 4:00pm for a 4:30pm departure! Hopefully those of you who were interested have been contacted with text messages ...

MESSAGE #47. Sat Sep 13 6:59:56 2008 . Jeanette Ellmers wrote:

Hi guys, its all on the weather for sunday or monday, fingers crossed for clear sky

MESSAGE #46. Fri Sep 12 21:12:45 2008 . Dominic Ang wrote:

So, any news on the 'Dark Skies' trip? Is it on Sunday or Monday, and where and when do we meet? Cheers!

MESSAGE #45. Thu Sep 11 17:55:22 2008 . Angelique Zidich wrote:

oops, its going up on the assignments page as I had to miss this week too.

MESSAGE #44. Thu Sep 11 17:54:35 2008 . Angelique Zidich wrote:

MESSAGE #43. Thu Sep 11 2:55:04 2008 . Grace Lynskey wrote:

Hey, I couldn't make it to the lecture today, where can I find the homework?

MESSAGE #42. Mon Sep 1 21:02:35 2008 . Prof. Doug Hamilton wrote:

Cloudy skies again! So again we have to cancel. :(

Jeanette, whose sister owns the farm, leaves for Australia on Thursday so we will try to reschedule after the first week of the term when she returns. Sorry!

MESSAGE #41. Sun Aug 31 22:46:05 2008 . Prof. Doug Hamilton wrote:

It looks like dark skies tomorrow (Tuesday Sept. 2), and the Banks Peninsula farm trip is on! We'll make a last minute decision tomorrow by noon (check back here). Bring lots of warm clothes, blankets, and binoculars if you have them. Some cars will be returning to Christchurch late, but there is also the option for up to 12 people to stay in the farmhouse. We'll meet at the UCSA parking lot by the bus stop at 4:00pm Tuesday for a 4:30pm departure!

MESSAGE #40. Mon Aug 25 1:02:43 2008 . Prof. Doug Hamilton wrote:

Thanks Anna! And thanks to all of you for your kind comments on the evaluation forms that I handed out last Friday. Almost all comments were positive, although many of you wished that I had posted copies of the slides to the website.

Last Friday's West Melton outing was a big success! There were about 20 of us and the skies cooperated for a few hours (mostly) giving us great views of the Milky way, star clusters, Jupiter & moons, and nebulae! Amazing! I encourage you all to get out there sometime - check details on their website.

Watch this spot for announcements about the Banks peninsula dark skies trip! We need to wait a few days after it rains so that we won't tear up the ground cover, and so the earliest we can go (given weather forecasts) will be this Friday. Our leader Jeanette won't be available the first week of the next term, so our window of opportunity is something like Aug. 29 - Sep. 7. If your name is on the phone list, someone will call you a day or two before we go! I'll post info here as well.

HW #5 and Quiz #3 grades are posted and the assignments are available for pickup in my office, Rutherford #814. Enjoy the term break!

MESSAGE #39. Sat Aug 23 16:56:37 2008 . Anna Kirkman wrote:

Hi, I just wanted to say that Professor Hamilton has been an awesome lecturer this term, round of applause please!

Also, from having done no astronomy ever before, I'm probably going to change my degree so I can stick with it, so thank you!

MESSAGE #38. Fri Aug 22 3:07:27 2008 . Hayden Redwood wrote:

Spooky Physics: Signals Seem to Travel Faster Than LightBy Charles Q. Choi, Special to LiveScience

posted: 13 August 2008 01:01 pm ET Buzz up! del.icio.us Digg It! Newsvine reddit26 Comments | 6 Recommend Strange events that Einstein himself called "spooky" might happen at least 10,000 times the speed of light, according to the latest attempt to understand them.

Atoms, electrons, and the rest of the infinitesimally tiny building blocks of the universe can behave rather bizarrely, going completely against the way life as we normally experience it. For example, objects can sometimes be said to exist in two or more places at the same time, or spin in opposite directions simultaneously.

One consequence of this murky realm of quantum physics is that objects can get linked together, such that what happens to one instantaneously has an effect on the other, a phenomenon dubbed "quantum entanglement." This holds true no matter how far apart these objects are from each other.

Einstein rebelled against the notion of quantum entanglement, derisively calling it "spooky action at a distance." One could instead argue that an entangled object releases an unknown particle or some other signal at high speeds to influence its partner, giving the illusion of a simultaneous reaction.

In the past, experiments have ruled out any suspects for such hidden signals from the realm of classical physics. Still, one exotic possibility remains — that such x-factors instead travel faster than the speed of light.

To investigate this possibility, scientists at Geneva in Switzerland began with entangled pairs of photons, or packets of light. These pairs were then split up and sent over fiber optic cables provided by Swisscom to stations at two Swiss villages some 11 miles (18 kilometers) apart from each other. The stations confirmed that each pair of photons had remained entangled — by analyzing one, scientists could predict aspects of its partner.

For any hidden signal to travel from one station to the other in just 300 trillionths of a second — the rapidity at which the stations could accurately detect the photons — any such x-factor had to go at least 10,000 times the speed of light.

As much as Einstein might have disliked the notion of quantum entanglement, he also revealed that signals could not get transmitted faster than light. Any faster-than-light "spooky action at a distance" is therefore implausible, said researcher Nicolas Gisin, a physicist at the University of Geneva. Instead, "what's fascinating here is that we see that nature is able to produce events that can manifest themselves at several locations," he said.

In a sense, these instantaneous events "seem to happen from outside space-time, in that it's not a story you can tell within space-time," Gisin told LiveScience. "This is something that an entire community of scientists is already studying very intensively."

Gisin and his colleagues detailed their findings in the August 14 issue of the journal Nature. http://www.livescience.com/strangenews/080813-spooky-limit.html

MESSAGE #37. Fri Aug 22 1:07:08 2008 . Prof. Doug Hamilton wrote:

We'll try for the West Melton Observatory tonight - It is Friday at 5pm and it looks like patchy clouds to the west. Maybe it will be OK! Cars leave from the bus stop near the UCSA at 7:30pm; cost is 5 dollars. If we can't see stars, we'll head to a pub! :)

I'll leave the ASTR109 website active in term 4, so feel free to continue to use the bulletin board, grade page, and other amenities. I enjoyed teaching this class and hope that you all enjoyed taking it as well!

MESSAGE #36. Wed Aug 20 7:11:18 2008 . Dominic Ang wrote:

Guys! For those of you who did not go to the observatory, you'll live to regret it. It was one of the clearest nights and we could see Jupiter with its 4 Galilean moons all aligned, open and globular clusters and the Alpha centauri. The most impressive sight was Jupiter with all its rings and moons. TRULY AMAZING!!! Thanks to the professor and Vincent for organizing this trip!

MESSAGE #35. Tue Aug 19 23:24:12 2008 . Prof. Doug Hamilton wrote:

Tonight's unofficial field trip is a go! Meet downtown at the Townshead Observatory anytime after 7:00pm (see link from the main ASTR109 page for location & details). A bunch of us are catching the bus from the UCSA at 6:15pm and will walk to the observatory from the main bus station. Join us!

At 7:00, we should be able to catch a quick glimpse of Mars and Saturn before they set. Venus is visible too, and Jupiter is high in the evening sky. Should be fun!

MESSAGE #34. Tue Aug 19 18:11:34 2008 . Angelique Zidich wrote:

You need to have Java installed to view it and not all campus computers have this Cheers

MESSAGE #33. Tue Aug 19 18:10:21 2008 . Angelique Zidich wrote:

MESSAGE #32. Tue Aug 19 1:21:48 2008 . Prof. Doug Hamilton wrote:

Hi Robert,

Another student called me with the same problem, but I have no trouble seeing the HW. Try holding the shift key and pressing reload and/or quitting your browser and restarting it. I also copied hw5.html to hw5a.html. Try accessing that. I also have extra hardcopies in my office Rm 814.

DH

MESSAGE #31. Mon Aug 18 21:45:35 2008 . Robert Loomes wrote:

Homework 5 is not working, for me at least. It doesn't load when you try get into it.

MESSAGE #30. Thu Aug 14 19:00:06 2008 . Prof. Doug Hamilton wrote:

Friday 10:45am weather report: Looks like we are out of luck for opening the observatory tonight. We will try again next Wednesday. So tonight's Townshead field trip is off. :(

But you are invited to two public talks next week that might be of interest! Rain or shine! I have been invited to speak about my research on Solar System problems to two groups, and by chance the talks fell in the same week. Both talks are on campus. The first is at the meeting of the Canterbury Astronomical Society. The talk is entitled "When Neptune met Triton" and will detail how we think Neptune captured its largest satellite - and what happened next. The talk is scheduled for Tuesday Aug. 19th at 7:30pm in room Law105.

The second is for the Royal Astronomical Society of New Zealand and is on "Tilting the Planets". This one is about a Solar System mystery, recently solved. We know that Saturn formed with its spin axis almost untilted, and yet it is tilted today. How did that happen? More details at this site: http://www.canterbury.rsnz.org/. The talk is scheduled for Thursday August 21, 8:00pm in room E5.

Feel free to come to either of these! Bring friends and popcorn!

MESSAGE #29. Mon Aug 11 22:27:15 2008 . Prof. Doug Hamilton wrote:

Here's the plan for the unofficial Field Trips!

This Friday (Aug. 15) we will try to go downtown to the Townshead Observatory (see link from main page). I'll let you know Friday during tutorial and here on the bulletin board if the weather is good enough that they will be open. If not, Vincent (who runs the place) will open it up especially for our class sometime next week!

Next Friday (Aug 22) we will try to go the Canterbury Astronomical Society. They recommended that we come on one of their usual nights unless we had a group of more than 20 (even though their website says 10). We'll need to organize cars for this, so we'll have a meeting next Thursday after class if the weather looks good.

Sometime this week or next week we'll try to run out the Banks Peninsula for dark skies! We'll meet after class tomorrow to pick a date and do some planning.

Gotta love Field Trips! :)

MESSAGE #28. Wed Aug 6 2:40:10 2008 . Malcolm Carr wrote:

The Canterbury Astronomical Society hosts open nights, during the winter months (April to October) when daylight savings has finished.

Go into their website, below, then click on 'Viewing Nights' for more information.

http://www.phys.canterbury.ac.nz/cas/

Regards, Malcolm Carr

(Charge: $5 per head, for ages 5 and above.

Group Bookings

Groups of 10 or more can book a separate night (usually Wednesday) by contacting, the convener for public nights and group bookings, Lionel Hussey.  Book early to avoid disappointment.)

MESSAGE #27. Tue Aug 5 22:55:27 2008 . Angelique Zidich wrote:

Canterbury Astronomical Society covers dark skies and good telescopes, whereas the downtown Art centre telescope has a lot of light pollution although the historical factor is neat.

MESSAGE #26. Tue Aug 5 2:18:52 2008 . Dominic Ang wrote:

Hey everyone! It's getting brighter every night if you notice. Guess you know what this means. The earth's south axis is starting the point towards the sun, and soon we'll have our summer solstice (if you recall how the summer and winter solstice works). I thought I'd put this up to help recap some facts from earlier lectures.

MESSAGE #25. Mon Aug 4 23:39:26 2008 . Jonathan Muller wrote:

I don't know if anybody realised that there was a total solar eclipse on the 1st of August over northern Canada. Here is a great link where you can view the total eclipse from an airplane 27000 feet in the air.

http://www.i-am-bored.com/bored_link.cfm?link_id=32440

MESSAGE #24. Mon Aug 4 1:02:59 2008 . Toni Cox wrote:

oh yay! im so excited about the field trip hope is goes ahead

MESSAGE #23. Fri Aug 1 2:38:48 2008 . Prof. Doug Hamilton wrote:

I never change my calendar because when it is Friday here it is only Thursday back in my hometown. It's just too confusing! And now for some quick announcements ...

For those of you that joined the class late, Prof. Baggaley and I will excuse you from HW#1 when we calculate the final grades. Everyone can drop their lowest quiz grade, so missing Quiz #1 is less of a problem, especially because it was hard!

For everyone, I strongly recommend attending all lectures and tutorials and doing all of the assignments. There is no other way to really learn a subject. On a more practical note, everything you do in this class now helps to prepare you for the final exam that you take at the end which will determine most of your grade. It is a very poor learning strategy to skip things now expecting to cram it all at the end.

Finally, I am working on an optional "View the Sky" outing for anyone in the class who is interested. More details in an upcoming lecture ...

MESSAGE #22. Thu Jul 31 21:24:52 2008 . Dominic Ang wrote:

A: Why haven't you changed the date on the calendar? B: It happens anyway. Sun comes up, sun goes down!!!

MESSAGE #21. Wed Jul 30 22:01:15 2008 . Prof. Doug Hamilton wrote:

I have posted all sorts of new stuff on the "Assignments" page - including new solution sets and some hints on HW#3!

Enjoy!

MESSAGE #20. Tue Jul 29 3:27:39 2008 . Hamish Cattell wrote:

If you didn't know there is a cool function on Google Earth which allows you to look up at the night sky in any particular location, it has labels etc which are handy. There is also a tutorial on the solar system in the same menu, Click on the picture of the planet on the top tool bar -Enjoy :)

MESSAGE #19. Sun Jul 27 22:31:53 2008 . Michael Burrell-Smith wrote:

I'm unable to use the web site given in q1 it's not loading the page after i put in my co-ordinates..... what's the deal is it broken or what???

MESSAGE #18. Sun Jul 27 20:10:25 2008 . Prof. Doug Hamilton wrote:

Take a look in the sky just after sunset over the weekend of August 1-3. The very bright planet Venus will be visible in the direction of the setting Sun. Above it along the eclipic is the more difficult to spot Saturn and then, about twice as far from Venus, the distinctly reddish planet Mars (looks brighter than Saturn). During Aug. 1-3, the crescent Moon will move through this area nearly along the ecliptic and passing Venus, then Saturn, and then Mars. An impressive show! Later in the evenings toward the south Jupiter is visible (the brightest "star" along the ecliptic that isn't Venus). This is a particularly good month to watch the sky! Look for the motion of the Moon relative to the stars and planets and note its changing phase (thin crescent to half moon to full moon and then back to half and crescent) as the month progresses.

Clear Skies!

MESSAGE #17. Fri Jul 25 2:18:04 2008 . Prof. Doug Hamilton wrote:

HW#1 is graded and posted on the website! I'll return the graded papers (and probably the quizzes as well) to you on Wednesday.

Please feel free to work with friends on the homework, but write up your answers in your own words. One set of homework this week crossed the line into copying which will not be tolerated in this class.

MESSAGE #16. Wed Jul 23 23:16:20 2008 . Prof. Doug Hamilton wrote:

Just a reminder that I do not make the PowerPoint slides available. Instead, I post "lecture details" at http://www.astro.umd.edu/~hamilton/ASTR109/lecturedetails.html. This is actually more work for me than simply posting the slides, but I strongly believe in the value of attending lectures. This is what you are paying for when you go to college! And it is a simple fact that when PowerPoint slides are available, class attendance goes down.

MESSAGE #15. Wed Jul 23 21:10:07 2008 . Christopher Burrell-Smith wrote:

Is there any one that knows were i can get the powerpoint slides from the lectures

MESSAGE #14. Wed Jul 23 19:40:05 2008 . Toni Cox wrote:

to help with homework #2 question 2. e) go to this site it looks awesome!! http://nynerd.com/lunar-eclipse-from-the-moon/

MESSAGE #13. Tue Jul 22 22:11:57 2008 . Andrew Berryman wrote:

Sorry forgot to put the website in there, here it is http://eclipse.gsfc.nasa.gov/eclipse.html

MESSAGE #12. Tue Jul 22 22:11:10 2008 . Andrew Berryman wrote:

This NASA website is cool. Gives you times and dates of eclipses from the past and into the future

MESSAGE #11. Tue Jul 22 22:08:33 2008 . Andrew Berryman wrote:

Hi, A cool website to check out is http://www.fourmilab.ch/earthview/vplanet.html You can view the moon, earth etc. from different locations and see real time light on the earth etc.

Also i found helpful with the homework #2 regarding light on the moon and earth.

MESSAGE #10. Mon Jul 21 21:20:19 2008 . Mark Andrew wrote:

Hi guys. I surfed across this last year. Just click on this link.

http://news.bbc.co.uk/2/hi/science/nature/6933566.stm

MESSAGE #9. Mon Jul 21 0:26:04 2008 . Prof. Doug Hamilton wrote:

Homework #2 and a Sample Quiz are now posted on the Assignments page! Our first quiz is on Friday. For Anna's question - you are going to make the journey in your own car (I hope that it is spaceworthy and I definitely recommend rolling up the windows!) so just choose a reasonable driving speed.

MESSAGE #8. Sun Jul 20 18:47:39 2008 . Anna Kirkman wrote:

Hi Guys, silly question: in the homework 2. d) it asks how long it would take to drive to the moon - is this supposed to mean drive in a car or the spaceship? and at what speed? average car speed, being ~60km/hr?

MESSAGE #7. Sun Jul 20 5:59:26 2008 . Thomas Nelson wrote:

Another program that may be of interest is Celestia, it lets you explore space in 3D. To quote the wikipedia article Celestia "allows users to travel through an extensive universe, modeled after reality at any speed, in any direction and at any time in history."

Home Page : http://www.shatters.net/celestia/

also http://www.celestiamotherlode.net/ for lots of really cool add-ons like adding extra nebulae and such.

Works on Linux, Windows, Mac. Needs a slightly grunty graphics card if you install high-res add-ons.

Stellarium is a nice program too.

MESSAGE #6. Fri Jul 18 2:22:33 2008 . Yi Goh wrote:

I'd found a very interesting program call "Stellarium Celestia", that allows you to see the Universe in the real time. Hope you like it and enjoy :)

Maple

MESSAGE #5. Thu Jul 17 21:30:43 2008 . Maree Beswick wrote:

Second Post!!

MESSAGE #4. Wed Jul 16 22:45:37 2008 . Thomas Nelson wrote:

First Post!

MESSAGE #3. Wed Jul 16 21:20:36 2008 . Prof. Doug Hamilton wrote:

Now I've noticed a new problem with this program! The timestamp is from Washington D.C.! To convert to NZ time, just add 16 hours. For example, this message was posted at 13:20 Thursday afternoon NZ time.

MESSAGE #2. Wed Jul 16 21:15:14 2008 . Prof. Doug Hamilton wrote:

Some of you noticed a problem with the Scientific Notation website yesterday - not enough space for the "power" to type in the correct answer. I fixed the problem last night so all should be well! If you are still experiencing problems, please let me know.

DH

MESSAGE #1. Wed Jul 9 19:32:37 2008 . Prof. Doug Hamilton wrote:

Hi!

Welcome to the ASTR109 Bulletin Board! This your place to post messages and good astronomy links to each other, maybe help each other on homework assignments, etc. I hope you find it useful. For starters, take a look at one of my favorite web applications at http://janus.astro.umd.edu/SolarSystems/. To include links like this, choose view source from your browser menu and write your own HTML code similar to mine.

Enjoy! DH

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