Back كبلر-78b Arabic Kepler-78b German Kepler-78b Spanish Kepler-78b Finnish Kepler-78 b French Kepler-78 b Italian ケプラー78b Japanese Kepler-78b LB Kepler-78b Dutch Kepler-78b Polish
 Size comparison of Kepler-78b with Earth | |
| Discovery[1] | |
|---|---|
| Discovery date | November 5, 2013 |
| Transit and reflection/emission modulations (Kepler Mission) | |
| Designations | |
| KIC 8435766 b | |
| Orbital characteristics[2] | |
| 0.00901+0.00012 −0.00019 AU | |
| Eccentricity | 0 |
| 0.35500745(8) days (8.5 hours) | |
| Inclination | 75.2°+2.6° −2.1° |
| Star | Kepler-78 |
| Physical characteristics[2] | |
| 1.228+0.018 −0.019 R🜨[3] | |
| Mass | 1.68±0.27 M🜨 |
Mean density | 5.33+0.97 −0.33 g/cm3 |
| log g = 3.058+0.069 −0.080 cgs (1.16 g) | |
| Temperature | 2223±32 K (1,950 °C, 3,542 °F) |
Kepler-78b (formerly known as KIC 8435766 b) is an exoplanet orbiting around the star Kepler-78. At the time of its discovery, it was the exoplanet most similar to Earth in terms of mass, radius, and mean density.
- ^ "APOD: 2013 November 5 - Kepler 78b: Earth-Sized Planet Discovered".
- ^ a b Bonomo, A. S.; Dumusque, X.; Massa, A.; Mortier, A.; Bongiolatti, R.; Malavolta, L.; Sozzetti, A.; Buchhave, L. A.; Damasso, M.; Haywood, R. D.; Morbidelli, A.; Latham, D. W.; Molinari, E.; Pepe, F.; Poretti, E. (2023-09-01). "Cold Jupiters and improved masses in 38 Kepler and K2 small planet systems from 3661 HARPS-N radial velocities. No excess of cold Jupiters in small planet systems". Astronomy and Astrophysics. 677: A33. arXiv:2304.05773. Bibcode:2023A&A...677A..33B. doi:10.1051/0004-6361/202346211. ISSN 0004-6361.
- ^ Dai, Fei; Masuda, Kento; Winn, Joshua N.; Zeng, Li (2019-09-01). "Homogeneous Analysis of Hot Earths: Masses, Sizes, and Compositions". The Astrophysical Journal. 883 (1): 79. arXiv:1908.06299. Bibcode:2019ApJ...883...79D. doi:10.3847/1538-4357/ab3a3b. ISSN 0004-637X.