Kepler-25 b (KOI 244.01, KOI-244 c, KIC 4349452 c, GSC 03124-01264 c, TYC 3124-1264-1 c, 2MASS J19063321 + 3929164 c [2] ) - the last of the two exoplanets of the star Kepler-25 in the constellation Cygnus. [1] [3]
| Kepler-25 c | |
|---|---|
| Exoplanet | |
| Parent star | |
| Star | Kepler-25 (KOI-244) |
| Constellation | Swan |
| Right Ascension ( α ) | 19 h 06 m 33,2204 s |
| Declination ( δ ) | + 39 ° 29 ′ 16,321 ″ |
| Visible magnitude ( m V ) | 10.734 |
| Distance | 782.7 St. of the year ( 240 pc ) |
| Spectral class | F |
| Weight ( m ) | 1.220 ± 0.06 M ☉ |
| Radius ( r ) | 1.36 ± 0.13 R ☉ |
| Temperature ( T ) | 6190 ± 80 K |
| Metallicity ([Fe / H]) | 0.010 ± 0.09 |
| Age | billion years |
| Observed location relative to the star | |
| Projection Distance ( d ) on the picture plane | 0.1140 ± 0.0019 a. e. |
| Elements of the orbit | |
| Semimajor axis ( a ) | 0.1140 ± 0.0019 a. e. |
| Eccentricity ( e ) | 0 |
| Orbital Period ( P ) | 12.720359 ± 3.8 × 10 -5 d. |
| Inclination ( i ) | ° |
| Pericenter Argument ( ω ) | 90 ° |
| Pericenter Time ( T 0 ) | 2454986.08710 ± 0.0008 JD |
| physical characteristics | |
| Weight ( m ) | <1322.12 M ⊕ |
| Minimum Weight ( m sin i ) | <4.6 M J |
| Radius ( r ) | 0.401 R J ( 4.5 R ⊕ ) |
| Density ( ρ ) | g / cm 3 |
| Temperature ( T ) | 959.7 K |
| Discovery Information | |
| opening date | 2012 |
| Detection method | Transit |
| Opening place | Kepler telescope |
| Opening status | Published [1] |
| Other designations | |
| KOI 244.01, KOI-244 s, KIC 4349452 s, GSC 03124-01264 s, TYC 3124-1264-1 s, 2MASS J19063321 + 3929164 s [2] | |
Exoplanet is a planet heated to 960 Kelvin. The radius of Kepler-25 b is four and a half Earth radii. She is drawn at a distance of 0.110 a. e. from the star, making a complete revolution in almost thirteen days.
Content
Native Star
Kepler-25 is a 10 magnitude star that was discovered using the Hipparcos orbital observatory during the Tycho project. The official opening of the star was made in 1997 as part of the publication of the Tycho catalog. The star name in this catalog is TYC 3124-1264-1 . At present, the name Kepler-25 , given by a team of researchers working with the Kepler telescope, is more common. [1] [3]
Kepler-25 is slightly larger and more massive than the Sun : its mass and radius are equivalent to 1.22 and 1.36 solar, respectively. The surface temperature of the star is approximately 6190 Kelvin . [1] [3]
See also
- Kepler-25
- List of exoplanets discovered in 2012
- List of exoplanets discovered by the Kepler telescope
- Kepler (telescope)
Notes
- ↑ 1 2 3 4 1201.5412v1, 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
- Jason H. Steffen et all. Transit Timing Observations from Kepler: III. Confirmation of 4 Multiple Planet Systems by a Fourier-Domain Study of Anti-correlated Transit Timing Variations . - 2012. - arXiv : 1201.5412v1 .
- 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-25s exoplanets.org. Archived on September 2, 2013.
- Kepler-25s (English) (inaccessible link) . Open Exoplanet Catalog. Archived on September 2, 2013.
- Kepler-25 from (English) (inaccessible link - history ) . Ames Research Center.
- Kepler-25s NASA Exoplanet Archive. Archived on September 2, 2013.
- Kepler-25s SIMBAD Archived on September 2, 2013.