Astronomy C

swaz
Member
Member
Posts: 1
Joined: September 28th, 2013, 8:50 pm
Division: C
State: MI
Has thanked: 0
Been thanked: 0

Re: Astronomy C

Post by swaz » September 28th, 2013, 8:59 pm

Hi, I have a question. I know there is a relationship between the absolute magnitude and luminosity of Cepheid variable stars. However, I'm having a lot of trouble finding the exact relationship. Also, Type I Cepheids tend to be brighter than Type II but I can't seem to find an equation that represents the relationship between either Type I or Type II Cepheids.

Anybody?

AlphaTauri
Staff Emeritus
Staff Emeritus
Posts: 829
Joined: September 11th, 2009, 1:41 pm
Division: Grad
State: PA
Location: 04h 35m 55.239s, +16° 30′ 33.49″
Has thanked: 0
Been thanked: 0
Contact:

Re: Astronomy C

Post by AlphaTauri » September 29th, 2013, 7:56 pm

swaz wrote:Hi, I have a question. I know there is a relationship between the absolute magnitude and luminosity of Cepheid variable stars. However, I'm having a lot of trouble finding the exact relationship. Also, Type I Cepheids tend to be brighter than Type II but I can't seem to find an equation that represents the relationship between either Type I or Type II Cepheids.

Anybody?
This seems to be a bit of a recurring question; we had a discussion on it last year, which can be found at this here link (scroll up if you want to read the entire thing, I've only linked the most complete/relevant post).
Hershey Science Olympiad 2009 - 2014
Volunteer for Michigan SO 2015 - 2018

]\/[ Go Blue!

rofllolcopt
Member
Member
Posts: 1
Joined: September 29th, 2011, 5:07 pm
Division: C
State: NJ
Has thanked: 0
Been thanked: 0

Re: Astronomy C

Post by rofllolcopt » October 6th, 2013, 5:38 pm

has anyone been able to find any decent resources on the V1 DSO? I know it's a cepheid but searching it doesn't seem to produce anything useful.

User avatar
bookluvr-yoyo39
Member
Member
Posts: 28
Joined: February 6th, 2010, 6:04 pm
Division: C
State: FL
Location: In a small,small corner of the universe.....
Has thanked: 0
Been thanked: 0

Re: Astronomy C

Post by bookluvr-yoyo39 » October 9th, 2013, 1:30 pm

This is going to be a random question and/or request, but I was looking at the old astro national tests and I realized that I didn't have the answers for the 2010 nats test. Does anyone have the answers? I wasn't in Astronomy (since i wasn't in Div C) at the time, so I don't know if the answers were released.

It would be really helpful if anyone had them!

syo_astro
Exalted Member
Exalted Member
Posts: 601
Joined: December 3rd, 2011, 9:45 pm
Division: Grad
State: NY
Has thanked: 0
Been thanked: 5 times
Contact:

Re: Astronomy C

Post by syo_astro » October 9th, 2013, 1:45 pm

To rofllolcopt:
Sorry, but I don't really want to just give answers, but what have you done so far with it? Have you tried even googling "v1 cepheid"? I'll be honest, I'm not finding THAT much information on it either, so don't worry. Sometimes they give oddball DSOs.

To bookluvr:
http://www.aavso.org/science-olympiad should help you (go to 2010).
B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteorology, Physical Science Lab, Solar System, DyPlan (E and V), Shock Value
C: Microbe Mission, DyPlan (Earth's Fresh Waters), Fermi Questions, GeoMaps, Gravity Vehicle, Scrambler, Rocks, Astronomy
Grad: Writing Tests/Supervising (NY/MI)

CEOArchAngel
Member
Member
Posts: 2
Joined: October 13th, 2013, 2:49 pm
Division: C
State: NY
Has thanked: 0
Been thanked: 0

Re: Astronomy C

Post by CEOArchAngel » October 13th, 2013, 3:07 pm

Does anyone have a binder for this year for 2014?

I am new to this event and have no idea what anything means.

syo_astro
Exalted Member
Exalted Member
Posts: 601
Joined: December 3rd, 2011, 9:45 pm
Division: Grad
State: NY
Has thanked: 0
Been thanked: 5 times
Contact:

Re: Astronomy C

Post by syo_astro » October 13th, 2013, 4:11 pm

CEOArchAngel wrote:Does anyone have a binder for this year for 2014?

I am new to this event and have no idea what anything means.
I have a binder! But I'm just biased that way, other people like AlphaTauri like to use laptops. Generally teams use both since both resources have advantages. But it's up to whatever works best for you and your partner. If you need a starting point I'd recommend the scioly wiki, a neat blog made by two familiar sciolyers ;) at onwardtotheedge.wordpress.com, or asking a more specific question. Have you read the rules? That'll help too.
B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteorology, Physical Science Lab, Solar System, DyPlan (E and V), Shock Value
C: Microbe Mission, DyPlan (Earth's Fresh Waters), Fermi Questions, GeoMaps, Gravity Vehicle, Scrambler, Rocks, Astronomy
Grad: Writing Tests/Supervising (NY/MI)

User avatar
foreverphysics
Moderator
Moderator
Posts: 494
Joined: May 20th, 2011, 8:41 pm
Division: Grad
State: AL
Location: Deep inside a physics book
Has thanked: 0
Been thanked: 0
Contact:

Re: Astronomy C

Post by foreverphysics » October 13th, 2013, 6:04 pm

syo_astro wrote:...If you need a starting point I'd recommend the scioly wiki, a neat blog made by three familiar sciolyers ;) at onwardtotheedge.wordpress.com, or asking a more specific question. Have you read the rules? That'll help too.
Fix'd.
Image
Physics is difficult for 99% of the world's population because they don't understand it. The other 1% know too much.

"Physics is a psychiatrist?"

Partphys
Member
Member
Posts: 1
Joined: June 30th, 2013, 12:17 pm
Division: C
State: IL
Has thanked: 0
Been thanked: 0

Re: Astronomy C

Post by Partphys » October 14th, 2013, 8:50 am

Where can I find online Astronomy Notes??

User avatar
bookluvr-yoyo39
Member
Member
Posts: 28
Joined: February 6th, 2010, 6:04 pm
Division: C
State: FL
Location: In a small,small corner of the universe.....
Has thanked: 0
Been thanked: 0

Re: Astronomy C

Post by bookluvr-yoyo39 » October 23rd, 2013, 1:28 pm

Does anyone know how to interpret light curves that give you orbital phase and visual magnitude in order to determine orbital period?
Be nice to your enemies. It will drive them crazy.

Better to light a candle than curse the darkness

Locked

Return to “2014 Study Events”

Who is online

Users browsing this forum: No registered users and 1 guest