Search found 17 matches

by doge
June 30th, 2016, 6:12 pm
Forum: 2016 Study Events
Topic: Astronomy C
Replies: 149
Views: 54759

Re: Astronomy C

Has the national test been posted yet? I don't believe it is on soinc?
by doge
April 16th, 2016, 5:23 pm
Forum: 2016 Study Events
Topic: Astronomy C
Replies: 149
Views: 54759

Re: Astronomy C

Looking at radial velocity plots and this website: here eccentricity obviously affects the radial velocity of a star. However, I haven't been able to find an equation for eccentricity through a radial velocity curve. Is it calculable with just the curve?

If you somehow had the radial velocities ...
by doge
April 5th, 2016, 10:53 pm
Forum: General Competition
Topic: Events 2016-2017
Replies: 199
Views: 70124

Re: Chem Lab 2017 Topics

It seems bernard posted that the tentative focus for Chem Lab is thermodynamics and gas laws.
by doge
February 26th, 2016, 9:19 am
Forum: Wright Stuff C
Topic: Rubber & Winder Advice
Replies: 3
Views: 5307

Re: Rubber & Winder Advice

AstroJens wrote: Also how can I look at last year's forum on Wright Stuff. There is so many questions I have, and I'm sure that someone has probably answered them, so could someone tell me how to read last year's forums.
Here are the building forums from last year: http://scioly.org/phpBB3/viewforum.php?f=188
by doge
December 28th, 2015, 10:12 pm
Forum: 2016 Question Marathons
Topic: Astronomy C
Replies: 88
Views: 33841

Re: Astronomy C

1. T Tauri
2. 1852, John Russel Hind
3. T Tauri South (?), infrared
4. Hyades
5. Hind's rebula, herbig haro object
by doge
November 27th, 2015, 1:21 pm
Forum: 2016 Question Marathons
Topic: Astronomy C
Replies: 88
Views: 33841

Re: Astronomy C

Star C has a transiting exoplanet orbiting it with an inclination of 66 degrees at an average distance of 2 AU. C has a mass of 30 Jupiter masses and radius 0.5 solar radii while the exoplanet has a mass of 4 Jupiter masses. If C has a density that is equal to that of the exoplanet...

1. What is ...
by doge
November 24th, 2015, 12:38 pm
Forum: Bridge Building B/C
Topic: Wood
Replies: 5
Views: 5193

Re: Wood

This from the Bridge Wood thread from earlier this year.

Does anyone know the best place to get balsa and bass wood? :)
I've used National Balsa and Specialized Balsa . I like that with Specialized Balsa I can select densities and grain (but at a higher price). I've also found that the wood cut ...
by doge
November 21st, 2015, 3:29 pm
Forum: 2016 Study Events
Topic: Astronomy C
Replies: 149
Views: 54759

Re: Astronomy C

Considering the topics for this year are the same as last year and the AAVSO website for SciOly hasn't been updated since July, it probably is the 2015 one? I don't see a powerpoint on the Chandra website either.
by doge
November 14th, 2015, 4:50 pm
Forum: 2016 Question Marathons
Topic: Astronomy C
Replies: 88
Views: 33841

Re: Astronomy C

Star C has a transiting exoplanet orbiting it with an inclination of 66 degrees at an average distance of 2 AU. C has a mass of 30 Jupiter masses and radius 0.5 solar radii while the exoplanet has a mass of 4 Jupiter masses. If C has a density that is equal to that of the exoplanet...

1. What is ...
by doge
November 13th, 2015, 8:43 pm
Forum: 2016 Question Marathons
Topic: Astronomy C
Replies: 88
Views: 33841

Re: Astronomy C

Answer|1. Brown dwarf
2. WISE 0855-0714, 2MASSJ22282889-431026, GD 165B
3. Not sure if this is what you're looking for, but it has a higher density due to star-like formation while planets solely accumulate mass through accretion in the outskirts of the protoplanetary disk, this causes them to be ...

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