Imaginary Picture of Kepler-21 A b |
Exoplanet Name : | Kepler-21 A b | |||
Alternate Name : | Kepler-21 b | |||
Radius (Rjup / Re): | 0.1462 | (Rjup) | 1.6388 | (Rearth) |
Mass (Mjup / Me): | 0.0160 | (Mjup) | 5.0870 | (Mearth) |
Semi Major Axis / Orbital Distance Calculated | 0.0427 | (AU) | 0.0427 | (AU Est.) |
Eccentricity : | 0.0200 | |||
Orbital Period(Yrs) | 0.0076 | |||
Orbital Period(Observed/Estimated) | 2.79 | (Days Obs.) | 2.79 | (Days Est.) |
Surface Gravity (G Earth) | 1.8942 | |||
Star Radiation at Atmospheric Boundary: | 3285113.7 | (W/m2) | ||
Measured Temperature (K) | 0.0 | (K) | ||
Blackbody T 0.1(K) | 1900.1 | (K) | ||
Blackbody T 0.3(K) | 1784.4 | (K) | ||
Blackbody T 0.7(K) | 1443.8 | (K) | ||
Tidally Locked Blackbody T 0.1(K) | 2259.6 | (K) | ||
Tidally Locked Blackbody T 0.3(K) | 2122.0 | (K) | ||
Size Class: | super-Earth-size | |||
Mass Class: | ||||
Detection Type : | Primary Transit | |||
Mass Detection : | ||||
Radius Detection : | Primary Transit | |||
Habitability by Solar Eq. Astronomical Unit: | Not habitable | |||
Habitability by Kopparapu: | Not habitable | |||
Star Name : | Kepler-21 A | |||
Alternate Name : | Kepler-21 | |||
Star Distance(LY) : | 352.2 | |||
Stellar Radius(Rsun) : | 1.9 | (Rsun Measured) | ||
Stellar Mass(Msun) : | 1.3 | (Msun Measured) | 1.3 | (Msun Estimated) |
Star Age : | 2.8 | (GY) | ||
Temperature : | 6131 | (K) | ||
Spectral type : | F6IV | |||
UV portion[%]: | 7.8 | |||
Visible portion[%]: | 44.8 | |||
IR portion[%]: | 47.4 | |||
Metalicity : | -0.1 | |||
Absolute Magnitude: | 3.1 | |||
Apparent Magnitude: | 8.3 | |||
Right Ascension(RA) | 287.3618 | |||
Declination (DEC) | 38.7139 | |||
Hubble Space Telescope Guide Star Catalog (GSC) ID | 03120-00963 | |||
Discovered by | ||||
Discovery Paper - Authors | "Howell,teve.; Rowe,ason.; Bryson,tephen.; Quinn,amuel.; Marcy,eoffrey.; Isaacson,oward; Ciardi,avid.; Chaplin,illiam.; Metcalfe,ravis.; Monteiro,ario....; Appourchaux,hierry; Basu,arbani; Creevey,rlagh.; Gilliland,onald.; Quirion,ierre-Olivier; Stello,enis; Kjeldsen,ans; Christensen-Dalsgaard,_rgen; Elsworth,vonne; Garc_a,afael.; Houdek,_nter; Karoff,hristoffer; Molenda-_akowicz,oanna; Thompson,ichael.; Verner,raham.; Torres,uillermo; Fressin,rancois; Crepp,ustin.; Adams,lisabeth; Dupree,ndrea; Sasselov,imitar.; Dressing,ourtney.; Borucki,illiam.; Koch,avid.; Lissauer,ack.; Latham,avid.; Buchhave,ars.; Gautier,homas.,II; Everett,ark; Horch,lliott; Batalha,atalie.; Dunham,dward.; Szkody,aula; Silva,avid.; Mighell,en; Holberg,ay; Ballot,er_me; Bedding,imothy.; Bruntt,ans; Campante,iago.; Handberg,asmus; Hekker,askia; Huber,aniel; Mathur,avita; Mosser,enoit; R_gulo,lara; White,imothy.; Christiansen,essie.; Middour,hristopher.; Haas,ichael.; Hall,ennifer.; Jenkins,on.; McCaulif,ean; Fanelli,ichael.; Kulesa,raig; McCarthy,on; Henze,hristopher." | |||
Discovery Paper - Title | Kepler-21b: A 1.6 R Earth Planet Transiting the Bright Oscillating F Subgiant Star HD 179070 | |||
Discovery Paper - Journal | 0 | |||
Discovery Paper - URL | 0 | |||
SIMBAD LINK | http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Kepler-21+&submit=SIMBAD+search | |||
Open Exoplanet Database Link | http://www.openexoplanetcatalogue.com/planet/Kepler-21%20b/ | |||