Kepler-26 c (KOI 250.01, KOI-250 c, KIC 9757613 c, 2MASS J18594583 + 4633595 c [2] ) is the second exoplanet of the star Kepler-26 in the constellation Cygnus. [1] [3]
| Kepler-26 c | |
|---|---|
| Exoplanet | |
 Comparative sizes of Earth , Kepler-26 c and Jupiter | |
| Parent star | |
| Star | Kepler-26 (KOI-250) |
| Constellation | Swan |
| Right Ascension ( α ) | 18 h 59 m 45.839 s |
| Declination ( δ ) | + 46 ° 33 ′ 59.54 ″ |
| Visible magnitude ( m V ) | 15.473 |
| Distance | 1591 St. year ( 488 pc ) |
| Spectral class | K |
| Weight ( m ) | 0.650 ± 0.03 M ☉ |
| Radius ( r ) | 0.590 ± 0.03 R ☉ |
| Temperature ( T ) | 3900 K |
| Metallicity ([Fe / H]) | - 0.210 ± 0.08 |
| Age | billion years |
| Observed location relative to the star | |
| Projection Distance ( d ) on the picture plane | 0.1132 ± 0.00189 a. e. |
| Elements of the orbit | |
| Semimajor axis ( a ) | 0.1132 ± 0.00189 a. e. |
| Eccentricity ( e ) | 0 |
| Orbital Period ( P ) | 17.25204 ± 0.00025 d. |
| Inclination ( i ) | ° |
| Pericenter Argument ( ω ) | 90 ° |
| Pericenter Time ( T 0 ) | 2454982.8854 ± 0.004 JD |
| physical characteristics | |
| Weight ( m ) | <119.181 M ⊕ |
| Minimum Weight ( m sin i ) | <0.375 M J |
| Radius ( r ) | 0.321 R J ( 3.6 R ⊕ ) |
| Density ( ρ ) | g / cm 3 |
| Temperature ( T ) | 465.9 K |
| Discovery Information | |
| opening date | 2012 |
| Detection method | Transit |
| Opening place | Kepler telescope |
| Opening status | Published [1] |
| Other designations | |
| KOI 250.01, KOI-250 s, KIC 9757613 s, 2MASS J18594583 + 4633595 s [2] | |
Planet Kepler-26 b belongs to the class of very warm Neptune. Its maximum mass and true radius radius are 38% and 32% Jupiter . She turns very close to the parent star - at a distance of about 0.107 a. e. , making a complete revolution around the luminary for more than 17 days. However, rough estimates of the true mass of the planet (transit timing) suggest that it is only three times heavier than the Earth.
Content
Native Star
Kepler-26 is a star located in the constellation Cygnus at a distance of about 1591 light years from us. At least two planets and two unconfirmed planet candidates, Kepler-26d and Kepler-26e, revolve around the star . [1] [3]
Kepler-26 is a small star of 15.4 apparent magnitude. It is much lighter and smaller than our Sun. The mass of the star is 65% of the solar, and the radius is 59%. [1] [3]
See also
- Kepler-26
- 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-26 c . exoplanets.org. Archived on September 2, 2013.
- Kepler-26 from (English) (inaccessible link) . Open Exoplanet Catalog. Archived on September 2, 2013.
- Kepler-26 from (English) (inaccessible link - history ) . Ames Research Center.
- Kepler-26 c . NASA Exoplanet Archive. Archived on September 2, 2013.
- Kepler-26 c . SIMBAD Archived on September 2, 2013.