Kepler-30 d (KOI 806.03, KOI-806 d, KIC 3832474 d, 2MASS J19010807 + 3856502 d [2] ) is the last of the three exoplanets in the star Kepler-30 in the constellation Lyra. [1] [3]
| Kepler-30 d | |
|---|---|
| Exoplanet | |
| Parent star | |
| Star | Kepler-30 (KOI-806) |
| Constellation | Lyra |
| Right Ascension ( α ) | 19 h 01 m 08.076 s |
| Declination ( δ ) | + 38 ° 56 ′ 50.02 ″ |
| Visible magnitude ( m V ) | 15.403 |
| Distance | 4566 St. years old ( 1400 pc ) |
| Spectral class | G5v |
| Weight ( m ) | 0.990 ± 0.08 M ☉ |
| Radius ( r ) | 0.95 ± 0.12 R ☉ |
| Temperature ( T ) | 5498 ± 54 K |
| Metallicity ([Fe / H]) | 0.18 ± 0.27 |
| Age | 2 ± 0.8 billion years |
| Observed location relative to the star | |
| Projection Distance ( d ) on the picture plane | 0.534 ± 0.0144 a. e. |
| Elements of the orbit | |
| Semimajor axis ( a ) | 0.534 ± 0.0144 a. e. |
| Eccentricity ( e ) | 0.0220 ± 0.005 |
| Orbital Period ( P ) | 143.3430 ± 0.009 d. |
| Inclination ( i ) | 89.840 ± 0.02 ° |
| Pericenter Argument ( ω ) | 197.0 ± 7 ° |
| Pericenter Time ( T 0 ) | 2455171.8 ± 2.8 JD |
| physical characteristics | |
| Weight ( m ) | 0.0727 ± 0.0085 M J ( 23.1 ± 2.7 M ⊕ ) |
| Radius ( r ) | 0.784 ± 0.045 R J ( 8.8 ± 0.5 R ⊕ ) |
| Density ( ρ ) | 0.19 ± 0.02 g / cm 3 |
| Temperature ( T ) | 334.2 K |
| Discovery Information | |
| opening date | 2012 |
| Detection method | Transit |
| Opening place | Kepler telescope |
| Opening status | Published [1] |
| Other designations | |
| KOI 806.03, KOI-806 d, KIC 3832474 d, 2MASS J19010807 + 3856502 d [2] | |
The planet Kepler-30 d is approximately nine times larger than the Earth and belongs to the class of warm gas giants - planets with a large atmosphere and a hot core, which do not have a solid surface, slightly larger than Neptune in mass, and are close in size to Saturn . However, due to the proximity of its orbit to the parent star, the effective temperature of the planet is very high, so it is customary to include it in the class of hot Neptunes . Close proximity to the star means the possible evaporation of the atmosphere into outer space.
Kepler-30 d has a mass and radius of about 23 and 9 Earth, respectively. She circulates in a circular orbit at a distance of 0.5 a. e. from the parent star. It completes a full revolution in more than 143 days.
Content
Native Star
Kepler-30 is a star that is located in the constellation Lyra at a distance of about 4566 light years from us. At least three planets revolve around the stars. [1] [3]
Kepler-30 is a star of 15.4 apparent magnitude, similar in size and mass to our Sun. The mass of the star is 0.99% of the solar, and the radius is 0.95%. [1] [3]
See also
- Kepler-30
- List of exoplanets discovered in 2012
- List of exoplanets discovered by the Kepler telescope
- Kepler (telescope)
Notes
- ↑ 1 2 3 4 1207.5804v1, 2012 .
- ↑ 1 2 NASA Exoplanet Archive .
- ↑ 1 2 3 1102.0541v2, 2011 .
Literature
- Michael Perryman Part 6. Transits // The Exoplanet Handbook . - Cambridge University Press , 2011 .-- pp. 103-114. - 424 p. - ISBN 9780521765596 . Archived July 21, 2013 to Wayback Machine
Articles
- Roberto Sanchis-Ojeda et all. Alignment of the stellar spin with the orbits of a three-planet system . - 2012. - arXiv : 1207.5804v1 .
- William D. Cochran et all. Kepler 18-b, c, and d: A System Of Three Planets Confirmed by Transit Timing Variations, Lightcurve Validation, Spitzer Photometry and Radial Velocity Measurements . - 2011. - arXiv : 1110.0820v1 .
- William J. Borucki. Characteristics of planetary candidates observed by Kepler, II: Analysis of the first four months of data . - 2011 .-- arXiv : 1102.0541v2 .
- Stephen R. Kane, Dawn M. Gelino. Decoupling Phase Variations in Multi-Planet Systems (Eng.) // The Astrophysical Journal . - 2012. - arXiv : 1211.6747v1 .
- Montet B., Johnson J. DModel-Independent Stellar and Planetary Masses from Multi-Transiting Exoplanetary Systems . - 2012. - arXiv : 1211.4028v1 . (inaccessible link)
Links
- NASA's Kepler announces 11 planetary systems hosting 26 planets Ames Research Center. Archived July 10, 2013.
Directories
- Kepler-30 d (English) . exoplanets.org. Archived July 12, 2013.
- Kepler-30 d (inaccessible link) . Open Exoplanet Catalog. Archived July 12, 2013.
- Kepler-30 d . Ames Research Center. Archived July 12, 2013.
- Kepler-30 d (English) . NASA Exoplanet Archive. Archived July 12, 2013.
- Kepler-30 d (English) . SIMBAD Archived July 12, 2013.