New member says hello and asks a question

[sven]

Dear forum members,

my name is Sven Rudolph and I just registered to this forum.
I'm interested in physics and astronomy and have been a celestia user since its first release.

So here is my first question:
I just stumbled across HIP 53085, which is displayed by celestia with a radius of ~11000 times the radius of the sun. At this size the whole solar system would fit into this star.
I'm pretty certain that this is a typo.

Can anybody confirm this?


Greetings
Sven

[Hungry4info]

In my version of Celestia 1.6.0, which uses the default stars.dat file, HIP 53085 is represented as 710 solar radii.

What version are you using?

[sven]

In my version of Celestia 1.6.0, which uses the default stars.dat file, HIP 53085 is represented as 710 solar radii.

What version are you using?

I'm using Celestia 1.6.0, but thanks to your hint I remembered that I use a custom stars.dat from the package "starsdb2.1C_1.4.0.zip" from http://www.celestiamotherlode.net/catal ... _stars.php

So maybe I just have to wait until a new version of this catalog is released.


Grettings
Sven

[selden]

Sven,

Unfortunately, the 1- and 2-million star databases are "orphaned". Their original developer is no longer involved with Celestia, so I doubt that they will be updated.

[selden]

Sven,

If you want, you can add your own star catalog to give the star a more appropriate radius.

Create a text file named hip53805.stc and put it in the extras directory with the contents

Code: Select all

Modify 53085
  {
     Radius 4.938e8 # 710*6.955e5  km
  }