Celestia Forums

03 November 2024 - 93 TESS candidate planets added (TOI-7064 through TOI-7163). - 10 TESS candidate planets have been determined to be false positives since the last update and excluded. - Added a new TESS candidate planet in a known system (WASP-134). - Added TOI-# ID's for known transiting planets...

A recent paper by E. Evans, et al. found that the planet at Kepler-1652 probably doesn't orbit the primary. There's a 29% chance it orbits the Kepler-1652 B, and 63% chance it orbits Kepler-1652 C. The radius of the planet is 2.17, 2.48 and 2.90 RE, and the equilibrium temperature is 573, 402 and 34...

I don't know if there are addons that are on the forum that aren't on the Mobi site. And since there's a lot of addons on both, it might risk becoming a rather large research project to track down which addons are in what spots to avoid duplicating links. I will leave that to someone more interested...

Updated 05 Sep 2024.

01 September 2024 - 12 TESS candidate planets added (TOI-7033 through TOI-7045). - 16 TESS candidate planets have been determined to be false positives since the last update and excluded. - Updated TOI-5126, TOI-5398 , Kepler-21 , WASP-33 , TOI-2490 , TOI-2420, TOI-2485 , TOI-942 , HD 73344 , TOI-20...

There has been a real dry spell for TESS candidate planets recently. So for the second month in a row, we don't really have many new TESS candidates to add. Only TOI-7032 is a new candidate transiting planet system. This post marks the 5th anniversary of this ongoing project to bring all known plane...

This means that single stars that have “lost” planets do not disappear completely. Publish all files! I used to just delete the file if a planet was disproven, as recently as ~three years ago. So I'm missing some false-positive TOI systems, for example. So even this would not be complete. There's a...

Certainly there are issues where stars within 25 LY (i.e., in the purview of nearstars.stc) that are outdated. I could attempt to update these stars in extrasolar.stc but due to Celestia's file load order, nearstars.stc will be read after extrasolar.stc, so it won't end up making a difference. As fa...

Apologies on the delay. I've been rather busy. 06 Jul 2024 - Updated HD 142250 , TOI-1173 , HD 94834 , HD 150010 , TOI-849 , HD 219018, HD 217596 , WASP-107 , TOI-1685, GJ 436, TOI-2445, GJ 3470 , AF Lep , GJ 3470 , TOI-1244 , GJ 1008, TOI-286, L 168-9 , WASP-178 , HD 21520 , TOI-4201 , TOI-2374, TO...

01 Jun 2024 - 51 TESS candidate planets added (TOI-6978 through TOI-7031). - 6 TESS candidate planets have been determined to be false positives since the last update and excluded. - Added 2 new TESS candidate planets in a known TOI system (TOI-173, 218). - Added HT Cas , NGTS-26, NGTS-27 , KMT-2023...

I had removed rotation definitions for black holes and neutron stars where such information was not known and the code also removed the ending } on the stc object definition. Simple lesson which for some reason I haven't internalized: no small change in the code is without unforeseen consequences. I...

General Description of the Add-on XiSco.png Starting up default Celestia, one notices that the Galaxy is populated by almost entirely single-star systems. But each star is a place, and each place is likely to be more than just a single star -- whether it has planets or additional stellar components...

03 May 2024 - 11 TESS candidate planets added (TOI-6961 through TOI-6975). - 6 TESS candidate planets have been determined to be false positives since the last update and excluded. - Added 3 new TESS candidate planets in a known TOI system (TOI-5624). - Added TOI-# ID's for known transiting planets ...

03 April 2024 - 9 TESS candidate planets added (TOI-6957 through TOI-6960). - Added new TESS candidate planets in known TOI systems (TOI-1224, TOI-2227, etc). - Updated WASP-12 , Kepler-488 , HAT-P-11 , TOI-4438 , TOI-1224 , TOI-270 , KOI-1271 , CI Tau , HD 77946 , PDS 70 , TOI-1173 , MOA-2007-BLG-1...

The previous version suffered from some issues due to the rewriting of the tidal model for the rotation periods. I've attempted to fix these. I've also completed adding the PHOI (Planet Hunters Object of Interest) designations from Schmitt (2016), . Before, only K2-55 b (PHOI-3 b) had this identifie...

I decided to give planetary rotation periods another look. What I've been doing so far is assigning anything with an orbital period < 300 days a tidal equilibrium spin period. This is pretty blunt-force and I've known for a while it could be done better, and I wanted to implement a more tidally-driv...

Special shout-out to Trolligi for digging through the literature and finding HE 1523-0901. 03 February 2024 - 26 TESS candidate planets added (TOI-6870 through TOI-6895). - 25 TESS candidate planets have been determined to be false positives since the last update and excluded. - Added new TESS candi...

Thank-you for mentioning this. The problem has been tracked down to a barycenter that didn't have coordinates or an "OrbitBarycenter" line. This issue has been fixed.

I hope everyone had a good holiday season. Here's the next update to the exoplanet catalogue. 05 January 2024 - 32 TESS candidate planets added (TOI-6828 through TOI-6869). Added WTS 19b1-02162 , HD 112570, HD 154391 , HIP 65426 , SPECULOOS-3 , OGLE-2017-BLG-0448L - Updated Kepler-1625, Kepler-1708 ...

Hey there! If you don't mind I would like to point out a couple things to help contribute to your addon. Firstly, the c and d planets share the same orbit (it looks like the c planet was given the same semi-major axis as d). Secondly -- and arguably much less importantly -- the orientation of the sy...