Dieudonné's user avatar
Dieudonné's user avatar
Dieudonné's user avatar
Dieudonné
  • Member for 10 years, 1 month
  • Last seen more than a week ago
2 votes

Why does the gas cloud collapse in regions of high density?

4 votes
Accepted

Calculate the absolute magnitude for a multi-star system

2 votes

Binary star data

4 votes
Accepted

Equinox sunrise sunset direction

2 votes
Accepted

Star density in- versus out- of the arms of the galactic pattern?

3 votes

Transformation from Geocentric Coordinates into Equatorial Coordinates?

0 votes

Obtaining deltaT for use in software

1 vote

Transformation from Geocentric Coordinates into Equatorial Coordinates?

3 votes
Accepted

Astronomical databases for machine learning?

3 votes
Accepted

Variable and Multiple Stars in Hipparcos

6 votes

Equations for coordinates of solar system objects

3 votes
Accepted

Orbital Elements Mars near June 2014

10 votes
Accepted

Do we still use the term "astronomical unit" nowadays?

5 votes
Accepted

Is it proper to refer to objects beyond Neptune as "Kuiper Belt Objects?"

6 votes
Accepted

Mass, Radius, Colour, Size, Type of a Star from the Hipparcos Catalog

1 vote

Retrograde motion and Kuiper Belt Objects

3 votes
Accepted

How to complete the Hipparcos Catalog?

1 vote
Accepted

Is the universe simply a mass of atoms in 'void'; what does it look like?

2 votes
Accepted

Wher can I find a list of blueshifted regions in the Milky Way?

5 votes
Accepted

What does designation VY, NML, UU in star names stand for?

10 votes
Accepted

Which stars did the Sun form with?

1 vote

Declination and Ascension - the Sun and Andromeda

1 vote

Is there a standard mapping of symbols to terms for celestial and orbital mechanics

11 votes
Accepted

What is the angular diameter of Earth as seen from the Moon?

5 votes

Diameter of any galaxy

5 votes
Accepted

Star class according to initial mass

3 votes

Planets and Pluto? Neptune?

0 votes

Why objects are uniquely defined by their right ascention and declination?

1 vote

length of Star lifetime

2 votes

What happens if gravity shuts down for only one second?