Yes, that is Celestia. Of course mine is not a job since the program is released with open source license; to say, it is just an hobby related to certain of my scientific studies in the past. Because the "man" of the program is now involved in other matters (as you can see, the forum is no longer available) the software has been forked by the old "development team" under the name "Celestia.sci."; and they, along with the long standing members, we are
here .For some 3D models in 3DS format or for high res astronomical texture/normal maps in DDS, JPG or PNG format suited for all 3D modellers, if interested and with the due credits for yours works (no need for private use), do take a look
here which is the official Celestia's add-ons repository.