চন্দ্রসভা Astrophysics Contest (2nd Round)
Finished
Problems
Parallax
Cold Universe
flux magnitude relation
Total magnitude
Interstellar medium
Airmass
রং-বেরং
অতিরিক্ত রং
Intrinsic Colors
Hot Colors
Infall
Satellite (Synodic)
Satellite (Latitude)
A time travel to the Chicxulub Crater (1)
A time travel to the Chicxulub Crater (2)
A time travel to the Chicxulub Crater (3)
Shining In the Setting Sun
Setting of Vega
Redshift
Peculiar Velocity
Scale Factor
Hot Universe
Hubble Time
Dense Universe
Dark Universe
Critical Density