Question: If all the stars on the main sequence of a star cluster are typically only one-hundredth as bright as their main-sequence counterparts in the Hyades Cluster, then that cluster's distance is:
Background: I was walking on the street the other day, when this conversation took place:
GUY #1: Romeo, come forth; come forth, thou fearful man:
Affliction is enamour'd of thy parts,
And thou art wedded to calamity.
GUY #2: Father, what news? what is the prince's doom?
What sorrow craves acquaintance at my hand,
That I yet know not?
GUY #1: Too familiar
Is my dear son with such sour company:
I bring thee tidings of the prince's doom.
GUY #2: What less than dooms-day is the prince's doom?
GUY #1: A gentler judgment vanish'd from his lips,
Not body's death, but body's banishment.
GUY #2: Ha, banishment! be merciful, say 'death;'
For exile hath more terror in his look,
Much more than death: do not say 'banishment.'
GUY #1: Hence from Verona art thou banished:
Be patient, for the world is broad and wide.
GUY #2: Hey, if all the stars on the main sequence of a star cluster are typically only one-hundredth as bright as their main-sequence counterparts in the Hyades Cluster, then that cluster's distance is what?
Naturally, I had to answer that here.
Answer: 10 times as far as the Hyades's distance.
Tuesday, May 6, 2008
Which of these forms of radiation passes most easily through the disk of the Milky Way?
Question: Which of these forms of radiation passes most easily through the disk of the Milky Way?
Answer: Infrared Light
Source: http://www.scienceclarified.com/El-Ex/Electromagnetic-Spectrum.html
Answer: Infrared Light
Source: http://www.scienceclarified.com/El-Ex/Electromagnetic-Spectrum.html
What is the typical hydrogen content of stars that are forming right now in the vicinity of the Sun?
Question: What is the typical hydrogen content of stars that are forming right now in the vicinity of the Sun?
Answer: 70% Hydrogen
Source: http://www.csam.montclair.edu/~west/starslife.html
Answer: 70% Hydrogen
Source: http://www.csam.montclair.edu/~west/starslife.html
Which part of the galaxy has gas with the hottest average temperature?
Question: Which part of the galaxy has gas with the hottest average temperature?
Answer: The halo
Source: The instruction booklet from the PC version of Halo 2
Answer: The halo
Source: The instruction booklet from the PC version of Halo 2
How do we determine the Milky Way's mass outside the Sun's orbit?
Question: How do we determine the Milky Way's mass outside the Sun's orbit?
Answer: From the orbits of stars and gas clouds orbiting the galactic center at greater distances than the Sun
Source: http://users.zoominternet.net/~matto/M.C.A.S/notes(8).htm
Answer: From the orbits of stars and gas clouds orbiting the galactic center at greater distances than the Sun
Source: http://users.zoominternet.net/~matto/M.C.A.S/notes(8).htm
Why do disk stars bob up and down as they orbit the galaxy?
Question: Why do disk stars bob up and down as they orbit the galaxy?
Answer: Because the gravitational pull of other disk stars always pulls them toward the disk
Source: http://www.bramboroson.com/astro/apr22.html
Answer: Because the gravitational pull of other disk stars always pulls them toward the disk
Source: http://www.bramboroson.com/astro/apr22.html
Where are most of the Milky Way's globular clusters found?
Question: Where are most of the Milky Way's globular clusters found?
Answer: The halo.
Source: Halo 2
Answer: The halo.
Source: Halo 2
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