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Feb
9
asked Why do pre-main sequence stars show lithium in absorption?
Sep
28
asked What is the brightest star (relative magnitude) in M31?
Aug
28
asked What is a Seyfert galaxy?
Aug
20
asked What is the largest hydrogen-burning star?
May
10
asked Claim that 30-m class telescopes will have resolution far superior to Hubble: true?
Mar
21
asked Total solar eclipse, supermoon, and spring equinox all happening at the same time: anything special about this?
Feb
9
asked Determination of orbital elements for Trans-Neptunian Objects, how?
Feb
9
asked Estimates for how many Trans-Neptunian Objects there are
Feb
9
asked Is it proper to refer to objects beyond Neptune as “Kuiper Belt Objects?”
Feb
5
asked Why are gas giants colored the way they are?
Jan
28
asked Retrograde motion and Kuiper Belt Objects
Jan
12
answered How do astronomers choose their research topic?
Dec
24
asked What is the boundary in the atmosphere seen in this video?
Dec
18
asked Look up current positions and velocities of solar system objects
Nov
16
answered Does the Moon have an aurora?
Nov
6
asked At what density does helium burning start in a star?
Nov
5
asked What is the degree of ionization is the solar photosphere?
Oct
22
asked How are stellar elemental abundances quoted?
Oct
20
asked How did the Mars satellites “take cover” from the recent comet flyby?
Aug
11
asked Difference between quasar and Active Galactic Nuclei?