Celestia Forums

Im new to Celestia so i cant find this stars in program :
V382 Carinae
V838 Monoceretis
V509 Cassiopeiae
Mu Cephei
KY Cygni
V354 Cephei
Binary Star VV Cephei
VY Canis Majoris
if they are not in the program is there some addon for this?
if someone is working on this addon would be a good idea to put a picture -(or something)
-of our sun near the Stars on the list for comparisons.

dovlex wrote:Im new to Celestia so i cant find this stars in program :
V382 Carinae
V838 Monoceretis
V509 Cassiopeiae
Mu Cephei
KY Cygni
V354 Cephei
Binary Star VV Cephei
VY Canis Majoris
if they are not in the program is there some addon for this?
if someone is working on this addon would be a good idea to put a picture -(or something)
-of our sun near the Stars on the list for comparisons.

Of course these stars should be in Celestia. Stars have many different names and it is often impractical to implement all of them. You should always try the Hipparcos catalog number first. Your first star, for example:

V382 Carinae = x Car = HIP 54463 = HD 96918 = SAO 238813 = ...

altogether your star is known in the professional world database SIMBAD with as many as 31 different acronyms. Celestia knows the above 4 out of 31

Same with your other stars.

Fridger

Mu Cephei is definitely included. (Note that the displayed star names in the autocomplete area use constellation abbreviations and display Greek letters as Greek letters, so it appears as ? Cep)

Some of those stars (e.g. V838 Mon) were not measured by the Hipparcos satellite so aren't in Celestia, though there is no reason why you couldn't create an add-on that includes them.

Many of those stars you have listed by variable-star designations which are not completely implemented yet. You will need to look up the stars on SIMBAD and see if there is a HIP number. You can then enter "HIP ####" (where #### represents the number) and it will find the star in question.

(I plan to get a more complete set of variable star designations included by the time v1.7 comes out)

V382 Carinae is included, but for some reason, it has a radius of around 48 solar radii (not 747 solar radii). V509 Cassiopeiae is also included, under the alias HIP 113561, but again, it has an incorrect radius.

Here is an addon I created with V838 Monocerotis: https://drive.google.com/file/d/1ptqAKjF4suLU2LZ2jsPyPud7r3U3vUJM/view?usp=sharing
All of the other stars are in Luke's addon on the Celestia Motherlode.

As of today, the largest stars are NML Cygni (1,650 solar radii) and UY Scuti (1,708 solar radii). (VY Canis Majoris has been given a new radius of 1,420 solar radii)

Here is another addon I created with the current largest known stars:
https://drive.google.com/file/d/1ZAS8x8moOJuWqMgCuc1pvRwUxaHcn-uF/view?usp=sharing

Nice addon Joey!