# HD 131399

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Star in the constellation Centaurus

HD 131399 SPHERE image of HD 131399 A (top left), B and C (bottom right), and the background object (center) Credit: ESO/K. Wagner et al. Observation data Epoch J2000 Equinox J2000 Constellation Centaurus[1] Right ascension 14h 54m 25.30919s[2] Declination −34° 08′ 34.0412″[2] Apparent magnitude (V) 7.07[3] Characteristics Spectral type A1V + G + K[4] Astrometry Radial velocity (Rv) 0.30±1.3[5] km/s Distance 351+15 −12 ly (107.9+4.5 −3.7[6] pc) A Proper motion (μ) RA: −30.702[7] mas/yr Dec.: −30.774[7] mas/yr Parallax (π) 9.7480±0.0357 mas[7] Distance 335 ± 1 ly (102.6 ± 0.4 pc) Absolute magnitude (MV) 1.89[8] BC Proper motion (μ) RA: −31.523[9] mas/yr Dec.: −31.047[9] mas/yr Parallax (π) 9.3021±0.0633 mas[9] Distance 351 ± 2 ly (107.5 ± 0.7 pc) Orbit[4] Primary A Name BC Period (P) 3,556±36 yr Semi-major axis (a) 3.56±0.03" (349±28 au) Eccentricity (e) 0.13±0.05 Inclination (i) 45 to 65° Longitude of the node (Ω) 265±20[note 1]° Periastron epoch (T) B 502±33 Argument of periastron (ω) (secondary) 145.3±15[note 2]° Details Age 21.9+4.1 −3.8[6] Myr HD 131399 A Mass 1.95+0.08 −0.06[8] M☉ Radius 1.51+0.13 −0.10[8] R☉ Luminosity 14.8+2.6 −2.2[8] L☉ Surface gravity (log g) 4.37±0.10[8] cgs Temperature 9,200±100[8] K Rotational velocity (v sin i) 26±2[8] km/s HD 131399 B Mass 0.95±0.04[6] M☉ Surface gravity (log g) 4.40±0.03[6] cgs Temperature 4,890+190 −170[6] K HD 131399 C Mass 0.35±0.04[6] M☉ Surface gravity (log g) 4.45±0.05[6] cgs Temperature 3,460±60[6] K Other designations CD−33°10153, HIP 72940, SAO 206071 Database references SIMBAD data

**HD 131399** is a [star system](/source/Star_system) in the [constellation](/source/Constellation) of [Centaurus](/source/Centaurus). Based on the system's electromagnetic spectrum, it is located around 350 light-years (107.9 parsecs) away.[6] The total [apparent magnitude](/source/Apparent_magnitude) is 7.07,[6] but because of [interstellar dust](/source/Interstellar_dust) between it and the Earth, it appears 0.22±0.09 magnitudes [dimmer](/source/Interstellar_extinction) than it should.[6]

The brightest star, is a young [A-type main-sequence star](/source/A-type_main-sequence_star), and further out are three lower-mass stars.[4] A [Jupiter](/source/Jupiter)-mass planet or a low-mass [brown dwarf](/source/Brown_dwarf) was once thought to be orbiting the central star, but this has been ruled out.[6][10]

## Stellar system

The brightest star in the HD 131399 system is designated HD 131399 A. Its spectral type is A1V,[4] and it is 2.08 times as massive as the Sun.[6] The two lower-mass stars are designated HD 131399 B and C, respectively. B is a [G-type main-sequence star](/source/G-type_main-sequence_star), while HD 131399 C is a [K-type main-sequence star](/source/K-type_main-sequence_star).[4] Both stars are less massive than the Sun.[6] A lower-mass companion to HD 131399 A was announced in 2017, at a separation of 0.12 [astronomical units](/source/Astronomical_unit) (au).[11]

HD 131399 B and C are located very close to each other, and the two orbit each other at about 10 AU.[12] In turn, the B-C pair orbits the central star A at a distance of 349 AU. This orbit takes about 3,600 years to complete, and it has an eccentricity of about 0.13[4] The entire system is about 21.9 million years old.[6]

One paper has reported that HD 131399 A has a companion in an inclined 10-day orbit with a [semi-major axis](/source/Semi-major_axis) of 0.1 [AU](/source/Astronomical_unit).[13] HD 131399 A has been described as a "nascent [Am star](/source/Am_star)"; although it has a very slow projected rotation rate and would be expected to show [chemical peculiarities](/source/Chemically_peculiar_star), its [spectrum](/source/Stellar_spectrum) is relatively normal, possibly due to its young age.[8]

## Claims of a planetary system

Main article: [HD 131399 Ab](/source/HD_131399_Ab)

Artist's impression of HD 131399 Ab, before it was found to be a background star.

The claimed discovery of a massive planet, named HD 131399 Ab, was announced in a paper published in the journal *[Science](/source/Science_(journal))*.[4] The object was imaged using the [SPHERE](/source/Spectro-Polarimetric_High-Contrast_Exoplanet_Research) imager of the [Very Large Telescope](/source/Very_Large_Telescope) at the [European Southern Observatory](/source/European_Southern_Observatory), located in the [Atacama Desert](/source/Atacama_Desert) of [Chile](/source/Chile), and announced in a July 2016 paper in the journal *[Science](/source/Science_(journal))*.[4][14] It was thought to be a [T-type](/source/T-type_star) object with a mass of 4±1 [*M*J](/source/Jupiter_mass),[4] but its orbit would have been unstable, causing it to be ejected between the primary's [red giant phase](/source/Red_giant_branch) and [white dwarf](/source/White_dwarf) phase.[15] This was the first exoplanet candidate to be discovered by SPHERE. The image was created from two separate SPHERE observations: one to image the three stars and one to detect the faint planet.[16] After its discovery, the team unofficially named the system "Scorpion-1" and the planet "Scorpion-1b", after the survey that prompted its discovery, the Scorpion Planet Survey (principal investigator: [Daniel Apai](/source/Daniel_Apai)).[17]

In May 2017, observations made by the [Gemini Planet Imager](/source/Gemini_Planet_Imager) and including a reanalysis of the SPHERE data suggest that this target is, in fact, a [background star](/source/Fixed_stars). This object's [spectrum](/source/Spectrum) seems to be like that of a [K-type](/source/K-type_main-sequence_star) or [M-type dwarf](/source/Red_dwarf), not a T-type object as first thought. It also initially appeared to be associated with HD 131399, but this was because of its unusually high [proper motion](/source/Proper_motion) (in the top 4% fastest-moving stars).[6] After subsequent data published in 2022 confirmed that the object is a background star,[18] the paper announcing the putative discovery was [retracted](/source/Retractions_in_academic_publishing).[10][19]

## References

1. **[^](#cite_ref-1)** [Roman, Nancy G.](/source/Nancy_Roman) (1987). ["Identification of a constellation from a position"](https://doi.org/10.1086%2F132034). *[Publications of the Astronomical Society of the Pacific](/source/Publications_of_the_Astronomical_Society_of_the_Pacific)*. **99** (617): 695. [Bibcode](/source/Bibcode_(identifier)):[1987PASP...99..695R](https://ui.adsabs.harvard.edu/abs/1987PASP...99..695R). [doi](/source/Doi_(identifier)):[10.1086/132034](https://doi.org/10.1086%2F132034). [Constellation record for this object](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?source=VI%2F42%2Fout&%2F%2Ftables=VI%2F42%2Fout&-c=HD+131399&-c.eq=J2000&-c.r=++2&-c.u=arcmin&-c.geom=r&-source=&-source=VI%2F42%2Fout&-out=RA1875&-out=DE1875&-out=Cst) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-HIP_2-0) [***b***](#cite_ref-HIP_2-1) van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". *Astronomy and Astrophysics*. **474** (2): 653–664. [arXiv](/source/ArXiv_(identifier)):[0708.1752](https://arxiv.org/abs/0708.1752). [Bibcode](/source/Bibcode_(identifier)):[2007A&A...474..653V](https://ui.adsabs.harvard.edu/abs/2007A&A...474..653V). [doi](/source/Doi_(identifier)):[10.1051/0004-6361:20078357](https://doi.org/10.1051%2F0004-6361%3A20078357). [S2CID](/source/S2CID_(identifier)) [18759600](https://api.semanticscholar.org/CorpusID:18759600).

1. **[^](#cite_ref-TYC2_3-0)** Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". *Astronomy and Astrophysics*. **355**: L27–L30. [Bibcode](/source/Bibcode_(identifier)):[2000A&A...355L..27H](https://ui.adsabs.harvard.edu/abs/2000A&A...355L..27H).

1. ^ [***a***](#cite_ref-Wagner_4-0) [***b***](#cite_ref-Wagner_4-1) [***c***](#cite_ref-Wagner_4-2) [***d***](#cite_ref-Wagner_4-3) [***e***](#cite_ref-Wagner_4-4) [***f***](#cite_ref-Wagner_4-5) [***g***](#cite_ref-Wagner_4-6) [***h***](#cite_ref-Wagner_4-7) [***i***](#cite_ref-Wagner_4-8) Wagner, K.; Apai, D.; Kasper, M.; [Kratter, K.](/source/Kaitlin_Kratter); McClure, M.; Robberto, M.; Beuzit, J.-L. (2016). "Direct imaging discovery of a Jovian exoplanet within a triple-star system". *Science*. **353** (6300): 673–8. [arXiv](/source/ArXiv_(identifier)):[1607.02525](https://arxiv.org/abs/1607.02525). [Bibcode](/source/Bibcode_(identifier)):[2016Sci...353..673W](https://ui.adsabs.harvard.edu/abs/2016Sci...353..673W). [doi](/source/Doi_(identifier)):[10.1126/science.aaf9671](https://doi.org/10.1126%2Fscience.aaf9671). [PMID](/source/PMID_(identifier)) [27386921](https://pubmed.ncbi.nlm.nih.gov/27386921). [S2CID](/source/S2CID_(identifier)) [206650422](https://api.semanticscholar.org/CorpusID:206650422). (Retracted, see [doi](/source/Doi_(identifier)):[10.1126/science.abq1709](https://doi.org/10.1126%2Fscience.abq1709), [PMID](/source/PMID_(identifier)) [35420970](https://pubmed.ncbi.nlm.nih.gov/35420970), [*Retraction Watch*](https://retractionwatch.com/2022/04/14/triple-sunrise-triple-sunset-science-paper-retracted-when-it-turns-out-a-planet-is-a-star/))

1. **[^](#cite_ref-Kharchenko_5-0)** Kharchenko, N. V.; et al. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". *Astronomische Nachrichten*. **328** (9): 889. [arXiv](/source/ArXiv_(identifier)):[0705.0878](https://arxiv.org/abs/0705.0878). [Bibcode](/source/Bibcode_(identifier)):[2007AN....328..889K](https://ui.adsabs.harvard.edu/abs/2007AN....328..889K). [doi](/source/Doi_(identifier)):[10.1002/asna.200710776](https://doi.org/10.1002%2Fasna.200710776). [S2CID](/source/S2CID_(identifier)) [119323941](https://api.semanticscholar.org/CorpusID:119323941).

1. ^ [***a***](#cite_ref-Nielsen_6-0) [***b***](#cite_ref-Nielsen_6-1) [***c***](#cite_ref-Nielsen_6-2) [***d***](#cite_ref-Nielsen_6-3) [***e***](#cite_ref-Nielsen_6-4) [***f***](#cite_ref-Nielsen_6-5) [***g***](#cite_ref-Nielsen_6-6) [***h***](#cite_ref-Nielsen_6-7) [***i***](#cite_ref-Nielsen_6-8) [***j***](#cite_ref-Nielsen_6-9) [***k***](#cite_ref-Nielsen_6-10) [***l***](#cite_ref-Nielsen_6-11) [***m***](#cite_ref-Nielsen_6-12) [***n***](#cite_ref-Nielsen_6-13) [***o***](#cite_ref-Nielsen_6-14) [***p***](#cite_ref-Nielsen_6-15) Nielsen, Eric L.; et al. (2017). ["Evidence that the Directly-Imaged Planet HD 131399 Ab is a Background Star"](https://doi.org/10.3847%2F1538-3881%2Faa8a69). *The Astronomical Journal*. **154** (6): 218. [arXiv](/source/ArXiv_(identifier)):[1705.06851](https://arxiv.org/abs/1705.06851). [Bibcode](/source/Bibcode_(identifier)):[2017AJ....154..218N](https://ui.adsabs.harvard.edu/abs/2017AJ....154..218N). [doi](/source/Doi_(identifier)):[10.3847/1538-3881/aa8a69](https://doi.org/10.3847%2F1538-3881%2Faa8a69). [S2CID](/source/S2CID_(identifier)) [55138870](https://api.semanticscholar.org/CorpusID:55138870).

1. ^ [***a***](#cite_ref-dr3a_7-0) [***b***](#cite_ref-dr3a_7-1) [***c***](#cite_ref-dr3a_7-2) Vallenari, A.; et al. (Gaia collaboration) (2023). ["*Gaia* Data Release 3. Summary of the content and survey properties"](https://doi.org/10.1051%2F0004-6361%2F202243940). *Astronomy and Astrophysics*. **674**: A1. [arXiv](/source/ArXiv_(identifier)):[2208.00211](https://arxiv.org/abs/2208.00211). [Bibcode](/source/Bibcode_(identifier)):[2023A&A...674A...1G](https://ui.adsabs.harvard.edu/abs/2023A&A...674A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202243940](https://doi.org/10.1051%2F0004-6361%2F202243940). [S2CID](/source/S2CID_(identifier)) [244398875](https://api.semanticscholar.org/CorpusID:244398875). [Gaia DR3 record for this source](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-source=+I%2F355&-from=nav&-nav=cat%3AI%2F355%26tab%3A%7BI%2F355%2Fgaiadr3%7D%26key%3Asource%3D1355%2Fgaiadr3%26HTTPPRM%3A%26-out.add%3D.%26Source%3D%3D%3D6204835284262018688%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-przbylla2017_8-0) [***b***](#cite_ref-przbylla2017_8-1) [***c***](#cite_ref-przbylla2017_8-2) [***d***](#cite_ref-przbylla2017_8-3) [***e***](#cite_ref-przbylla2017_8-4) [***f***](#cite_ref-przbylla2017_8-5) [***g***](#cite_ref-przbylla2017_8-6) [***h***](#cite_ref-przbylla2017_8-7) Przybilla, N.; Aschenbrenner, P.; Buder, S. (2017). "Candidate exoplanet host HD 131399A: A nascent Am star". *Astronomy & Astrophysics*. **604**: L9. [arXiv](/source/ArXiv_(identifier)):[1707.07920](https://arxiv.org/abs/1707.07920). [Bibcode](/source/Bibcode_(identifier)):[2017A&A...604L...9P](https://ui.adsabs.harvard.edu/abs/2017A&A...604L...9P). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201731384](https://doi.org/10.1051%2F0004-6361%2F201731384). [S2CID](/source/S2CID_(identifier)) [119230582](https://api.semanticscholar.org/CorpusID:119230582).

1. ^ [***a***](#cite_ref-dr3b_9-0) [***b***](#cite_ref-dr3b_9-1) [***c***](#cite_ref-dr3b_9-2) Vallenari, A.; et al. (Gaia collaboration) (2023). ["*Gaia* Data Release 3. Summary of the content and survey properties"](https://doi.org/10.1051%2F0004-6361%2F202243940). *Astronomy and Astrophysics*. **674**: A1. [arXiv](/source/ArXiv_(identifier)):[2208.00211](https://arxiv.org/abs/2208.00211). [Bibcode](/source/Bibcode_(identifier)):[2023A&A...674A...1G](https://ui.adsabs.harvard.edu/abs/2023A&A...674A...1G). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/202243940](https://doi.org/10.1051%2F0004-6361%2F202243940). [S2CID](/source/S2CID_(identifier)) [244398875](https://api.semanticscholar.org/CorpusID:244398875). [Gaia DR3 record for this source](https://vizier.cds.unistra.fr/viz-bin/VizieR-4?-source=+I%2F355&-from=nav&-nav=cat%3AI%2F355%26tab%3A%7BI%2F355%2Fgaiadr3%7D%26key%3Asource%3D1355%2Fgaiadr3%26HTTPPRM%3A%26-out.add%3D.%26Source%3D%3D%3D6204835284262018176%26-go+%25%23Sesame%23%25%26) at [VizieR](/source/VizieR).

1. ^ [***a***](#cite_ref-Wagner_retraction_12-0) [***b***](#cite_ref-Wagner_retraction_12-1) Wagner, Kevin; Apai, Dániel; Kasper, Markus; [Kratter, Kaitlin](/source/Kaitlin_Kratter); McClure, Melissa; Robberto, Massimo; Beuzit, Jean-Luc (2022-04-15). ["Retraction"](https://www.science.org/doi/10.1126/science.abq1709). *Science*. **376** (6590): 255. [Bibcode](/source/Bibcode_(identifier)):[2022Sci...376..255W](https://ui.adsabs.harvard.edu/abs/2022Sci...376..255W). [doi](/source/Doi_(identifier)):[10.1126/science.abq1709](https://doi.org/10.1126%2Fscience.abq1709). [ISSN](/source/ISSN_(identifier)) [0036-8075](https://search.worldcat.org/issn/0036-8075). [PMID](/source/PMID_(identifier)) [35420970](https://pubmed.ncbi.nlm.nih.gov/35420970). [S2CID](/source/S2CID_(identifier)) [248180563](https://api.semanticscholar.org/CorpusID:248180563).

1. **[^](#cite_ref-13)** Lagrange, A.-M.; Keppler, M.; Beust, H.; Rodet, L.; Meunier, N.; Lillo-Box, J.; Bonnefoy, M.; Galland, F. (December 2017). "Discovery of a stellar companion to HD 131399A". *Astronomy & Astrophysics*. **608**: L9. [Bibcode](/source/Bibcode_(identifier)):[2017A&A...608L...9L](https://ui.adsabs.harvard.edu/abs/2017A&A...608L...9L). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201730978](https://doi.org/10.1051%2F0004-6361%2F201730978). [ISSN](/source/ISSN_(identifier)) [0004-6361](https://search.worldcat.org/issn/0004-6361).

1. **[^](#cite_ref-SciNews_14-0)** ["HD 131399Ab: Astronomers Find Super-Jupiter in Triple-Star System | Astronomy | Sci-News.com"](http://www.sci-news.com/astronomy/hd-131399ab-super-jupiter-triple-star-system-04008.html). Retrieved 8 July 2016.

1. **[^](#cite_ref-lagrange2017_15-0)** Lagrange, A.-M.; Keppler, M.; Beust, H.; Rodet, L.; Meunier, N.; Lillo-Box, J.; Bonnefoy, M.; Galland, F. (2017). ["Discovery of a stellar companion to HD 131399A"](https://doi.org/10.1051%2F0004-6361%2F201730978). *Astronomy & Astrophysics*. **608**: L9. [Bibcode](/source/Bibcode_(identifier)):[2017A&A...608L...9L](https://ui.adsabs.harvard.edu/abs/2017A&A...608L...9L). [doi](/source/Doi_(identifier)):[10.1051/0004-6361/201730978](https://doi.org/10.1051%2F0004-6361%2F201730978).

1. **[^](#cite_ref-cbsnews_16-0)** ["This strange new planet has three suns"](https://www.cbsnews.com/news/planet-with-three-suns-triple-sunrises-sunsets/). *[CBS News](/source/CBS_News)*. 7 July 2016. Retrieved 7 July 2016.

1. **[^](#cite_ref-17)** Veras, Dimitri; Mustill, Alexander J.; Gänsicke, Boris T. (2017). ["The unstable fate of the planet orbiting the a star in the HD 131399 triple stellar system"](https://doi.org/10.1093%2Fmnras%2Fstw2821). *Monthly Notices of the Royal Astronomical Society*. **465** (2): 1499. [arXiv](/source/ArXiv_(identifier)):[1611.00007](https://arxiv.org/abs/1611.00007). [Bibcode](/source/Bibcode_(identifier)):[2017MNRAS.465.1499V](https://ui.adsabs.harvard.edu/abs/2017MNRAS.465.1499V). [doi](/source/Doi_(identifier)):[10.1093/mnras/stw2821](https://doi.org/10.1093%2Fmnras%2Fstw2821). [S2CID](/source/S2CID_(identifier)) [73723946](https://api.semanticscholar.org/CorpusID:73723946).

1. **[^](#cite_ref-ESO_18-0)** ["A Surprising Planet with Three Suns"](https://www.eso.org/public/news/eso1624/). *[ESO](/source/ESO)*. Retrieved 7 July 2016.

1. **[^](#cite_ref-Scorpion-1b_19-0)** Miller, Michael (12 April 2017). ["UC mountaineer, galactic explorer"](http://magazine.uc.edu/editors_picks/recent_features/scorpion.html). *UC Magazine*. [University of Cincinnati](/source/University_of_Cincinnati). Retrieved 3 May 2017.

1. **[^](#cite_ref-20)** Wagner, Kevin; Apai, Dániel; Kasper, Markus; McClure, Melissa; Robberto, Massimo (2022-02-01). ["The Scorpion Planet Survey: Wide-orbit Giant Planets Around Young A-type Stars"](https://doi.org/10.3847%2F1538-3881%2Fac409d). *The Astronomical Journal*. **163** (2): 80. [arXiv](/source/ArXiv_(identifier)):[2112.02168](https://arxiv.org/abs/2112.02168). [doi](/source/Doi_(identifier)):[10.3847/1538-3881/ac409d](https://doi.org/10.3847%2F1538-3881%2Fac409d). [ISSN](/source/ISSN_(identifier)) [0004-6256](https://search.worldcat.org/issn/0004-6256).

1. **[^](#cite_ref-21)** Oransky, Ivan (14 April 2022). ["Triple sunrise, triple sunset: Science paper retracted when it turns out a planet is a star"](https://retractionwatch.com/2022/04/14/triple-sunrise-triple-sunset-science-paper-retracted-when-it-turns-out-a-planet-is-a-star/#more-124683). *Retraction Watch*. Retrieved 25 April 2022.

## Notes

1. **[^](#cite_ref-10)** There are two solutions; the other one is 75°±10°.

1. **[^](#cite_ref-11)** There are two solutions; the other one is 310°±10°.

v t e Constellation of Centaurus List of stars in Centaurus Centaurus in Chinese astronomy Stars Bayer α A (Rigil Kentaurus) B (Toliman) C (Proxima Centauri) β (Hadar) γ δ ε ζ (Leepwal) η θ (Menkent) ι (Kulou) κ λ μ ν (Heng) ξ1 ξ2 ο1 ο2 π ρ σ τ υ1 υ2 φ χ ψ x1 x2 C3 D E F G H J K M N Q Flamsteed 1 (i) 2 (g) 3 (k) 4 (h) Variable R T V Y RR SV SX BV DY UY V346 V553 V744 V752 V761 (a) V763 (C1) V766 V779 (Krzemiński's star) V803 V810 V816 (Przybylski's Star) V831 V842 V885 V886 V863 V1032 V1369 V1400 V1935 HR 4460 (A) 4466 (C2) 4499 4522 4523 4537 (j) 4546 (B) 4721 4748 (u) 4796 4817 (l) 4831 (w) 4874 (p) 4888 (e) 4889 (n) 4940 (f) 4979 4989 5006 (r) 5041 (m) 5089 (d) 5174 (z) 5222 (y) 5224 5241 5297 5358 (v) 5371 5471 (b) 5485 (c1) 5489 (c2) HD 97413 98176 100453 101581 101930 102117 (Uklun) 103197 107914 108236 109749 110113 113538 113766 114386 114729 115600 116434 (Matza) 117207 117618 (Dofida) 117939 120411 121228 121504 124448 (Popper's Star) 125072 125595 131399 Other 2MASS J1126−5003 2M1207 Gaia BH2 HD 131399 Ab PSR B1259−63 PSR J1311−3430 TOI-763 WASP-15 (Nyamien) WASP-41 WASP-42 WASP-167/KELT-13 Exoplanets 2M1207b b Centauri b HD 101930 b HD 102117 b (Leklsullun) HD 103197 b HD 109749 b HD 113538 b c HD 114386 b HD 114729 b HD 117207 b HD 117618 b (Noifasui) HD 121504 b HIP 65426 b (Najsakopajk) HIP 67522 b NGTS-13b Proxima Centauri b c d WASP-15b (Asye) Star clusters NGC 3766 4230 4507 5281 5286 5316 5460 5617 5662 Other IC 2944 ω Centauri Scorpius–Centaurus association Stock 16 Nebulae NGC 3918 5307 Other Boomerang Nebula Fleming 1 G292.0+1.8 G306.3-0.9 Gum 41 IC 2944 IRAS 13208−6020 RCW 79 RCW 86 Southern Crab Nebula SuWt 2 Galaxies NGC 3557 3568 3749 3783 4444 4603 4622 4650A 4683 4696 4706 4709 4729 4730 4743 4744 4909 4930 4945 4976 5011 A 5026 5064 5082 5090 5091 5102 5114 5121 5128 (Centaurus A) 5161 5206 5253 5266 5291 5398 5408 5419 5483 5516 Other ESO 269-57 ESO 325-4 ESO 383-76 ESO 444-46 Fourcade-Figueroa Object IC 3370 IC 4214 IC 4329A IRAS 13224−3809 J1144−4308 LEDA 677373 PKS 1144−379 PKS 1353−341 PKS 1424−418 Galaxy clusters Abell S740 Centaurus Cluster Shapley Supercluster Astronomical events GW190521 SN 185 SN 1895B (Z) SN 1972E SN 1986G J1407b SN 2019so Category

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