|
Exoplanet Name : |
75 Cet b |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.1138 |
(Rjup) |
1.2756 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0078 |
(Mjup) |
2.4799 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
1.9120 |
(AU) |
1.9120 |
(AU Est.) |
|
Eccentricity : |
0.0930 |
|
Orbital Period(Yrs) |
1.9071 |
|
Orbital Period(Observed/Estimated) |
696.60 |
(Days Obs.) |
611.96 |
(Days Est.) |
|
Surface Gravity (G Earth) |
1.5240 |
|
Star Radiation at Atmospheric Boundary: |
20395.8 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
533.4 |
(K) |
|
Blackbody T 0.3(K) |
500.9 |
(K) |
|
Blackbody T 0.7(K) |
405.3 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
634.3 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
595.7 |
(K) |
|
Size Class: |
super-Earth-size |
|
Mass Class: |
|
|
Detection Type : |
Radial Velocity |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
|
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
75 Cet |
|
Alternate Name : |
|
|
Star Distance(LY) : |
265.6 |
|
Stellar Radius(Rsun) : |
10.5 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
2.5 |
(Msun Measured) |
1.9 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4846 |
(K) |
|
Spectral type : |
G3III |
|
UV portion[%]: |
2.6 |
|
Visible portion[%]: |
35.7 |
|
IR portion[%]: |
61.7 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
0.8 |
|
Apparent Magnitude: |
5.4 |
|
Right Ascension(RA) |
38.0393 |
|
Declination (DEC) |
-1.0350 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
04698-01302 |
|
Discovered by |
|
|
Discovery Paper - Authors |
"Bun'ei Sato, Masashi Omiya, Hiroki Harakawa, Hideyuki Izumiura, Eiji Kambe, Yoichi Takeda, Michitoshi Yoshida, Yoichi Itoh, Hiroyasu Ando, Eiichiro Kokubo, Shigeru Ida" |
|
Discovery Paper - Title |
Substellar Companions to Seven Evolved Intermediate-Mass Stars |
|
Discovery Paper - Journal |
Publ Astron Soc Jpn Nihon Tenmon Gakkai (2012) 64 (6): 135. DOI: https://doi.org/10.1093/pasj/64.6.135. Published: 25 December 2012 |
|
Discovery Paper - URL |
https://academic.oup.com/pasj/article/64/6/135/1422181/Substellar-Companions-to-Seven-Evolved |
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=75+Cet+&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
http://www.openexoplanetcatalogue.com/planet/75%20Cet%20b/ |
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75 Cet b
75 Cet b
75 Cet b is an exoplanet orbiting the star 75 Cet, located about 265.6 light-years (81.4 pc) away from Solar System. Its discovery was publicly announced on 2012.
The host star 75 Cet has apparent magnitude of 5.4, with absolute magnitude of 0.8. It is 2.5 times more massive and 10.5 times bigger compared with our Sun. The surface temperature is 4846 with its spectral types of G3III
In this planetary system, the extrasolar planet 75 Cet b orbits around the star 75 Cet every 696.6 days with its orbital distance of 1.91 AU ( 286031128.8 km)
(Projected orbit of 75 Cet b around its host star 75 Cet)
The Star 75 Cet 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 5.342 AU ( 799124105.2 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 7.384 AU ( 1104598349.4 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 11.251 AU ( 1683163437.5 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 16.557 AU ( 2476848732.9 km)
Radiation at Planetary Boundary of 75 Cet b : 20395.82 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 75 Cet)
Kopparapu Recent Venus for Star 75 Cet distance : 5.820 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star 75 Cet distance : 7.368 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 75 Cet distance : 7.117 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star 75 Cet distance : 7.812 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star 75 Cet distance : 13.439 AU
Kopparapu Outer Boundary for Early Mars for Star 75 Cet distance : 14.176 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star 75 Cet)
Original Kopparapu Recent Venus for Star 75 Cet distance : 5.751 AU
Original Kopparapu Runaway Greenhouse for Star 75 Cet distance : 7.597 AU
Original Kopparapu Moist Greenhouse for Star 75 Cet distance : 7.609 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 75 Cet distance : 13.663 AU
Original Kopparapu Outer Boundary for Early Mars for Star 75 Cet distance : 14.209 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star 75 Cet)
(Position in Stellar Map of star 75 Cet and its Exoplanet 75 Cet b)
(Zoomed position in Stellar Map of star 75 Cet and its Exoplanet 75 Cet b (zoom level 3))
(Synthetic Spectrum of star 75 Cet*)
*Yamashiki YA et al. 2019 ApJ 881 114
MUSCLES Paper I - France et al. 2016 ApJ 820 89
MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102
