Celestia Forums

K2-93
A system with Five Neptunes and One Jupiter

K2-93, also known as HIP 41378 and TOI-4304, is an F-type main-sequence star about 347.72 light-years away in the constellation Cancer. It has a total of six planets (5 neptunians, 1 Jovian) all orbiting within 1 AU from their parent star

This was retrieved from the Baidu site. Credits to the original author written down below.


Author: 星颜Crazy
Release date: 2022-Aug-7
Original link: https://pan.baidu.com/s/1nyPHdv9Xyntv-qdBXx10_Q

Gliese 229
Two mini-neptunes orbiting a red dwarf, with a brown dwarf in the distance

Gliese 229 Ac on the left and Ab on the right:



Yes that is fictional life in Gliese 229 Ac's pole

Kepler-33
Four Neptunes and One Super-Earth

Kepler-33 is a Sun-like star about 4,086 light-years away in the constellation Cygnus. It has a total of five planets (four neptunians and one superterran) all orbiting within 0.25 AU, or about half the average distance of Mercury to the Sun

This was retrieved from the Baidu site. Credits to the original author written down below.


Author: 星颜Crazy
Release date: 2022-Aug-8
Original link: https://pan.baidu.com/s/1CQYsuu7HKb2VUUARW1gF_Q

Kepler-1656
Two eccentric worlds, so different from each other




Added after 7 hours 4 minutes:
re-released it because the rings were bugged because I forgor to set the height of the ring texture to 1

Kepler-36
A Venus and a Hot Neptune

Kepler-36 is a G-type subgiant star about 1,748 light-years away in the constellation Cygnus. It is home to two planets, one of which is a large Venus-like world and the other a hot neptune, both orbiting within 0.12 AU

This was retrieved from the Baidu site. Credits to the original author written down below.


Author: 星颜Crazy
Release date: 2022-Aug-9
Original link: https://pan.baidu.com/s/1VrjxdvOTpkPBdqgj2EyFow

Microlensing rogue planets

This is a catalog of all candidate rogue planets discovered by gravitational microlensing, as of 2023. Note that this detection method is unable to confirm that these objects are free-floating, just set a lower limit on the distance from a star, so it's possible that some of them are actually in wide orbits around stars. Also note that the parameters for these objects, particularly distances, are highly uncertain. In many cases I've just arbitrarily set a distance of 10,000 light-years. By default these objects will appear completely dark (which is likely their true appearance in visible light); turn up ambient light to see the textures.

Also included are two microlensing planet hosts that, depending on highly uncertain parameters, may or may not themselves be planetary-mass. If they are, they could be considered rogue planets with moons. They're defined with "(planetary)" at the end of their names, so they shouldn't cause any conflict with Sirius_Alpha's exoplanet catalog, which uses the models with stellar-mass hosts.

The textures used were created by Chara (EarthSolar) and Steve Bowers.

This is basically a remake of a catalog of rogue planets (many of them from microlensing) that was included in an old, unfinished brown dwarf catalog I made. Use it for whatever, please do make custom textures for these worlds if you want!




Objects included in this addon:

• KMT-2017-BLG-2820L
• KMT-2019-BLG-2073L
• KMT-2023-BLG-2669L - NEW 2024
• MOA-2011-BLG-262L (planetary)
• MOA-2011-BLG-274L
• MOA-2015-BLG-337L (planetary)
• MOA-9y-770L
• MOA-9y-5919L
• OGLE-2012-BLG-1323L
• OGLE-2016-BLG-1540L
• OGLE-2016-BLG-1928L
• OGLE-2017-BLG-0560L
• OGLE-2019-BLG-0551L

Other objects included in the old addon:

• 2MASS J1119-1137 AB - remade by Trolligi; also has a candidate exomoon
• CFBDSIR J2149-0403 - remade by Gurren Lagann and SpaceExplorer
• Cha 110913 - remade by Trolligi
• PSO J318.5-22 - remade by Gurren Lagann and me
• WISE 0855-0714 & WISE 1828+2650 - remade by me as part of Nearby Exoplanets

Update March 2023: Two new rogue planets added from Koshimoto et al. 2023.
Update May 2024: One new rogue planet added from Jung et al. 2024. Some more candidate rogue planets are in this addon by Trolligi.

Gliese 777

Gliese 777, also known as HD 190360, is a binary system consisting of a G-type (yellow) subgiant and an M (red) dwarf, located 52 light-years away in the constellation of Cygnus. Two planets have been confirmed around the primary star: b is remarkable for being one of the most Jupiter-like planets known when it was announced in 2003, although it has a quite eccentric orbit, which takes it from 2.6 to 5.2 au around its star; and c, in a close 17-day orbit, is also notable for being of the first hot Neptunes discovered (2005). There might also be a third planet, although it's possibly an artifact of the radial-velocity data.



Planet textures made using GIMP. Star texture was made with StarTexGen.

My addons on exoplanets.

My addon on Kepler's systems.
5 planetary systems, discovered by Kepler space telescope: Kepler-9, Kepler-18, Kepler-19, Kepler-24 and Kepler-25.
Structure of this systems is similar: Hot super-earth close to the star and 2 or 3 ice giants a bit further.
https://celestia.space/forum/viewtopic.php?p=151602#p151602

Kepler-70 addon. 3 very hot planets around blue helium subdwarf.
https://celestia.space/forum/viewtopic.php?p=151513#p151513

Kepler-26. System with 2 transiting hot neptunes, superearth and ocean world in habitable zone.
https://celestia.space/forum/viewtopic.php?p=151516#p151516

WD 1856+534 system. Massive transiting gas giant or even brown dwarf orbiting close to white dwarf star.
https://celestia.space/forum/viewtopic.php?p=151526#p151526

K2-56 b Mega-Earth. One of the most massive Rocky planets known.
HD 10180 Most populated exoplanetary system. Unconfirmed planets included.
HD 40307. 6 planets around a orange main-sequence star. One is potentially habitable.
K2-3 System. 3 planets around a orange main-sequence star. One is potentially habitable.
K2-141 System. Includes one of the shortest-period planets around main-sequence stars.
All in https://celestia.space/forum/viewtopic.php?p=158685#p158685

2MASS J1119-1137 System. Two young gas rogue planets (3.7 MJup.) in constellation of Crater 86±23 Ly from Earth.
One of the components has extremely rapid rotation. Around one of components transiting exomoon
candidate in habitable zone detected.
L 98-59 system. 5 planets (unconfirmed potentially habitable included) .
OGLE-2016-BLG-1195L system. Icy Superearth orbiting a brown dwarf. Detected by microlensing method.
OGLE-2016-BLG-1928. One of the smallest free floating planets. Detected by microlensing method.
TOI-700 system. 3 planets orbiting a red dwarf, d is potentially habitable.
TOI-1338 system. Transiting circumbinary planet orbiting eclipsing binary.
WD 1145+017 system. Subplanetary object in dust disk of white dwarf.
All inhttps://celestia.space/forum/viewtopic.php?p=158711#p158711

Kepler-42 addon. 3 small rocky planets orbiting small dim red dwarf. Planets were discovered by Kepler space telescope in 2012.
I made planets b and c volcanic because of strong tidal forces. Download https://celestia.space/forum/viewtopic.php?p=151500#p151500

System color is main star color))

Added after 25 minutes 47 seconds:
System of Kapteyn's star.
2 (unconfirmed) icy superearth planets around very old and fast star.
Planet b is potentially habitable.

All planets of Kapteyn's Star were sadly disproven over a year ago: https://arxiv.org/abs/2103.02709


Also as a guide, you could look into this list I've made on which star system has been painted so far, with each name in BLACK indicates that there's no add-on made for that system yet:

Exoplanet Systems Collection

CFBDSIR 2149-0403
The first lonely world discovered

CFBDSIR 2149-0403 is a floating planetary-mass object and possible rogue planet. It is located in the constellation Aquarius, with best estimates indicating that it is about 130 light-years away from Earth. It was discovered in 2012 by the Canada-France Brown Dwarfs Survey, and confirmed by WISE data. It is estimated to have between 4 and 7 Jupiter masses.

STC file from the old Brown Dwarfs addon by SevenSpheres and Zemlyanin, and the texture is by Gurren Lagann.

UPDATE July 3, 2023: The planet was defined with stc code only, which is more suitable for objects with known spectral classes.

Kepler-296 system.
5 transiting planets orbiting an orange dwarf in binary system. Planets concidered to be rocky.
Planets e and f are in habitable zone.

PSO J318.5−22
A "hot" rogue planet

PSO J318.5−22 is a rogue planet located approximately 80 light-years away from Earth and belongs to the moving group Beta Pictoris. It was discovered in 2013 by the Pan-STARRS project. The planet has an estimated temperature of 1,100 K in its atmosphere, and is estimated to have 6.5 Jupiter masses.

STC and SSC files from the old Brown Dwarfs addon by SevenSpheres and Zemlyanin, and the texture is by Gurren Lagann.

NOTE: When searching for the name and going to the planet, you must zoom in to see it more closely.

PSO J318.5-22

Apparently Gurren isn't going to release an addon for this himself, so I've remade another rogue planet from my old addon! Compared to SpaceExplorer's addon, which as far as I know is still using the old stc/ssc code, this version has updated parameters (instead of just taking them from Wikipedia) and defines the object in an stc file instead of using the barycenter hack, since it's a directly imaged object with a known spectral type that's hot enough to glow. Again, the texture is by Gurren Lagann.

Note: Just because an object has a spectral type and is defined in an stc file doesn't mean you have to consider it a brown dwarf. Many directly imaged star-orbiting planets have spectral types, and many other planetary-mass objects (both free-floating and occasionally star-orbiting) have been defined in stc files in previously released addons.

PSO J318.5-22 is a free-floating planetary mass object, about 8 times the mass of Jupiter, located about 72 light-years away in the Beta Pictoris moving group. It is estimated to have a temperature of about 1100 Kelvin and a rotation period of 8.3 hours. This object was discovered in 2013 by the Pan-STARRS project, and has been described as an analogue of similarly young planets orbiting stars, such as Beta Pictoris b.



Update March 2023: Replace statement added for compatibility with pedro_jg's brown dwarf catalog.

TOI-561
5 gaseous planets orbiting a nearby sun-like star

The planets of TOI-561 to scale:



Note that TOI-561 f is listed as unconfirmed in this addon, this may change in the future, or TOI-561 f may be disproven. I will probably change this addon if that happens.

TOI-178 system.
6 transiting planets orbiting an orange dwarf. b and c are rocky, others are neptunes.
The planets c through g form a chain of resonance that can be expressed as 2:4:6:9:12 in ratios of periods,
or as 18:9:6:4:3 in ratios of orbits.

TOI-837
Sco-Cen's Cluster Planet

Here we have a "little" planet in the IC 2602 star cluster. Not much else to say.

Download: