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 Kappa Andromedae b is visible as the white blob in the upper left. | |
| Orbital characteristics | |
|---|---|
| 57–133[1]AU | |
| Eccentricity | 0.69–0.85[1] |
| 242–900[1] y | |
| Inclination | 114.9–140[1] |
| 60.3–90.5[1] | |
| 2038.4–2047.9[1] | |
| 96.6–155.4[1] | |
| Star | Kappa Andromedae |
| Physical characteristics | |
| Mass | 13+12 −2[2] MJ |
| Temperature | 1,700–2,000 K[2][3] |
Kappa Andromedae b[4] is a directly imaged substellar object and likely superjovian-mass planet orbiting Kappa Andromedae, a young B9IV star in the Andromeda constellation, about 170 light-years away.[5] The companion's mass is roughly 13 times the mass of Jupiter.[2] As early history on Kappa And b is filled with debate over whether it is an exoplanet or a brown dwarf, some scientists have broadly described it as a "super-Jupiter" object.
- ^ a b c d e f g Uyama, Taichi; et al. (2020), "Atmospheric Characterization and Further Orbital Modeling of κ Andromeda b", The Astrophysical Journal, 159 (2): 40, arXiv:1810.09457, Bibcode:2020AJ....159...40U, doi:10.3847/1538-3881/ab5afa, S2CID 208248220
- ^ a b c Cite error: The named reference
Currie2018was invoked but never defined (see the help page). - ^ Stone, Jordan M.; Barman, Travis; Skemer, Andrew J.; Briesemeister, Zackery W.; Brock, Laci S.; Hinz, Philip M.; Leisenring, Jarron M.; Woodward, Charles E.; Skrutskie, Michael F.; Spalding, Eckhart (2020), "High-contrast Thermal Infrared Spectroscopy with ALES: The 3–4 μm Spectrum of κ Andromedae B", The Astronomical Journal, 160 (6): 262, arXiv:2010.02928, Bibcode:2020AJ....160..262S, doi:10.3847/1538-3881/abbef3, S2CID 222177297
- ^ Cite error: The named reference
Carson2013was invoked but never defined (see the help page). - ^ "Super-Jupiter Kappa Andromedae b: NASA not certain if new discovery is a planet or dwarf star". wptv.com. November 20, 2012. Archived from the original on October 24, 2013. Retrieved November 21, 2012.