Reach for the Stars B

Test your knowledge of various Science Olympiad events.
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AstroPixel24
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Reach for the Stars B

Post by AstroPixel24 » September 16th, 2020, 9:56 am

Since there isn't a question marathon for Reach for the Stars, here's one!

Some easy ones to start off with--

1. This type of nebula contains H II regions and is formed from ionizing gases. M42 (Orion Nebula) and M8 (Lagoon Nebula) are prime examples of this nebula.
Image

2. Name this naked-eye double binary pair nicknamed "Horse and Rider".

3. New Horizons becomes the first space craft to demonstrate what astronomical phenomenon?
(not really adhering to the guidelines but just some trivia)
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space-egg
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Re: Reach for the Stars B

Post by space-egg » October 1st, 2020, 6:56 am

AstroPixel24 wrote:
September 16th, 2020, 9:56 am
Since there isn't a question marathon for Reach for the Stars, here's one!

Some easy ones to start off with--

1. This type of nebula contains H II regions and is formed from ionizing gases. M42 (Orion Nebula) and M8 (Lagoon Nebula) are prime examples of this nebula.
Image

2. Name this naked-eye double binary pair nicknamed "Horse and Rider".

3. New Horizons becomes the first space craft to demonstrate what astronomical phenomenon?
(not really adhering to the guidelines but just some trivia)
1.Emission nebula
2.Mizar and Alcor
3. Stellar parallax.
Last edited by space-egg on October 1st, 2020, 6:58 am, edited 2 times in total.
the name's bond. covalent bond.

2019:
solar system and potions and poisons

2020 (yikes):
reach for the stars, ornithology, and meteorology

thanks for all the memories (:

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RiverWalker88
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Re: Reach for the Stars B

Post by RiverWalker88 » December 7th, 2020, 9:56 am

Well... I'll go ahead and resurrect.

Zeta Ophiuchi is my favorite star on this list.
  1. What is causing red crescent-like structure in the attached image?
  2. This star is significantly brighter in infrared light than optical light. Why is this?
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AstronomyPerson
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Re: Reach for the Stars B

Post by AstronomyPerson » December 7th, 2020, 3:49 pm

RiverWalker88 wrote:
December 7th, 2020, 9:56 am
Well... I'll go ahead and resurrect.

Zeta Ophiuchi is my favorite star on this list.
  1. What is causing red crescent-like structure in the attached image?
  2. This star is significantly brighter in infrared light than optical light. Why is this?
a) The red crescent-like structure in the attached image is emitted by electrons trying to get back into their atoms after being pushed out by stellar wind.
b) Dust blocks our view of Zeta Ophiuchi, so it looks dim in optical light. Infrared lets us see through high amounts of dust and gas, which is why we can see Zeta Ophiuchi better.

AstroPixel24
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Re: Reach for the Stars B

Post by AstroPixel24 » December 8th, 2020, 5:44 am

RiverWalker88 wrote:
December 7th, 2020, 9:56 am
Well... I'll go ahead and resurrect.

Zeta Ophiuchi is my favorite star on this list.
  1. What is causing red crescent-like structure in the attached image?
  2. This star is significantly brighter in infrared light than optical light. Why is this?
1.
Bow shock? Because of the high space velocity of Zeta Oph in combination with its high intrinsic brightness and its current location in a dust rich area of the galaxy.
2.
The star is emitting ultraviolet radiation, which heats up the cloud on which its in.
Last edited by AstroPixel24 on December 8th, 2020, 5:44 am, edited 1 time in total.
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Re: Reach for the Stars B

Post by RiverWalker88 » December 8th, 2020, 7:51 am

AstroPixel24 wrote:
December 8th, 2020, 5:44 am
RiverWalker88 wrote:
December 7th, 2020, 9:56 am
Well... I'll go ahead and resurrect.

Zeta Ophiuchi is my favorite star on this list.
  1. What is causing red crescent-like structure in the attached image?
  2. This star is significantly brighter in infrared light than optical light. Why is this?
1.
Bow shock? Because of the high space velocity of Zeta Oph in combination with its high intrinsic brightness and its current location in a dust rich area of the galaxy.
2.
The star is emitting ultraviolet radiation, which heats up the cloud on which its in.
Well put! Your turn!
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AstroPixel24
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Re: Reach for the Stars B

Post by AstroPixel24 » December 8th, 2020, 8:02 am

1. The Paschen series lines lie in what ranges of wavelengths?
2. What is the radiated energy of a star, with a radius of 700.000km, and the wavelength of maximum intensity as 600nm.
3. The Lobster nebula, contains many of what type of stars?
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Re: Reach for the Stars B

Post by AstronomyPerson » December 8th, 2020, 3:32 pm

AstroPixel24 wrote:
December 8th, 2020, 8:02 am
1. The Paschen series lines lie in what ranges of wavelengths?
2. What is the radiated energy of a star, with a radius of 700.000km, and the wavelength of maximum intensity as 600nm.
3. The Lobster nebula, contains many of what type of stars?
1) Infrared?
2) For this, I have no idea, but I'm gonna guess 
3) Protostars? 

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Re: Reach for the Stars B

Post by MorningCoffee » March 3rd, 2021, 5:02 pm

Revive time!

Alrighty, so my absolute favorite DSO probably ever has to be M101, also in the image below
Image

1. What is another name for M101?
2. In the summer of 2011, what astronomical event was discovered in this galaxy? (bonus points if you know what they named it specifically!)
3. The image above is not the most detailed of this DSO to date. What was the name of the telescope that took the most detailed image of M101?
4. Around how many globular clusters is this galaxy estimated to have?
5. Why is this DSO asymmetrical?
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