Astronomy C Question Marathon
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Re: Astronomy C Question Marathon
Wait, did that work for alpacas?
B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteo, Phys Sci Lab, Solar System, DyPlan (E and V), Shock Value
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Grad: Writing Tests/Supervising (NY/MI)
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)
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Re: Astronomy C Question Marathon
Okay, an RR Lyrae star has an apparent magnitude of +11. What is the distance to this star in Mpc?
B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteo, Phys Sci Lab, Solar System, DyPlan (E and V), Shock Value
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)
- FawnOnyx
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Re: Astronomy C Question Marathon
Average absolute magnitude of RR Lyrae: +0.75 Use distance modulus: d=10^[(11-0.75+5)/5] = 1100 pc = 0.0011 Mpc
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Re: Astronomy C Question Marathon
That's what I got. Your move.FawnOnyx wrote:Average absolute magnitude of RR Lyrae: +0.75 Use distance modulus: d=10^[(11-0.75+5)/5] = 1100 pc = 0.0011 Mpc
B: Crave the Wave, Environmental Chemistry, Robo-Cross, Meteo, Phys Sci Lab, Solar System, DyPlan (E and V), Shock Value
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)
C: Microbe Mission, DyPlan (Fresh Waters), Fermi Questions, GeoMaps, Grav Vehicle, Scrambler, Rocks, Astro
Grad: Writing Tests/Supervising (NY/MI)
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Re: Astronomy C Question Marathon
I saw the rules, and it looks like a combo of 2012 & 2013 all in this year.
Syo, you're going to have one pigeon of a fun time
Syo, you're going to have one pigeon of a fun time
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Re: Astronomy C Question Marathon
I guess I'll join in with something moderately easy.
A quasar with redshift (z) of 0.2 may have a line in its observed spectrum of 6000 angstroms. What was the rest wavelength when it was emitted?
A quasar with redshift (z) of 0.2 may have a line in its observed spectrum of 6000 angstroms. What was the rest wavelength when it was emitted?
- FawnOnyx
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Re: Astronomy C Question Marathon
Yeah, this means all 3 of my astro years will have been on stellar evolution, with this being the grand finaleCrazy Puny Man wrote:I saw the rules, and it looks like a combo of 2012 & 2013 all in this year.
Emitted wavelength = observed wavelength / (1 + z) = 6000/(1.2) = 5000 angstroms
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Re: Astronomy C Question Marathon
Yep! thats it. Haha my bad, though I'd just join inFawnOnyx wrote:Yeah, this means all 3 of my astro years will have been on stellar evolution, with this being the grand finaleCrazy Puny Man wrote:I saw the rules, and it looks like a combo of 2012 & 2013 all in this year.
Technically, I was supposed to post a new question since I got the last one, but yeah I took forever to check this so it's cool.Emitted wavelength = observed wavelength / (1 + z) = 6000/(1.2) = 5000 angstroms
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Re: Astronomy C Question Marathon
Let's do something more graphical!
1. Identify the DSO
2. A similar supernova remnant of the same type is observed to have a peak apparent magnitude of +14.6. Estimate its distance in Mpc.
1. Identify the DSO
2. A similar supernova remnant of the same type is observed to have a peak apparent magnitude of +14.6. Estimate its distance in Mpc.
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