Exoplanet Name : |
CP Eri b |
Alternate Name : |
|
Status : |
Confirmed |
Radius (Rjup / Re): |
0.9078 |
(Rjup) |
10.1759 |
(Rearth) |
Mass (Mjup / Me): |
35.0000 |
(Mjup) |
11127.8300 |
(Mearth) |
Semi Major Axis / Orbital Distance Calculated |
0.0012 |
(AU) |
0.0012 |
(AU Est.) |
Eccentricity : |
0.0000 |
Orbital Period(Yrs) |
0.0001 |
Orbital Period(Observed/Estimated) |
0.02 |
(Days Obs.) |
0.02 |
(Days Est.) |
Surface Gravity (G Earth) |
107.4652 |
Star Radiation at Atmospheric Boundary: |
300909792.7 |
(W/m2) |
Measured Temperature (K) |
0.0 |
(K) |
Blackbody T 0.1(K) |
5878.3 |
(K) |
Blackbody T 0.3(K) |
5520.3 |
(K) |
Blackbody T 0.7(K) |
4466.5 |
(K) |
Tidally Locked Blackbody T 0.1(K) |
6990.5 |
(K) |
Tidally Locked Blackbody T 0.3(K) |
6564.8 |
(K) |
Size Class: |
Jupiter-size |
Mass Class: |
|
Detection Type : |
"Timing, Other" |
Mass Detection : |
|
Radius Detection : |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
Habitability by Kopparapu: |
Not habitable |
Star Name : |
CP Eri |
Alternate Name : |
PHL 1457 |
Star Distance(LY) : |
3261.6 |
Stellar Radius(Rsun) : |
0.6 |
(Rsun Estimated) |
Stellar Mass(Msun) : |
0.8 |
(Msun Measured) |
0.0 |
(Msun Estimated) |
Star Age : |
0.0 |
(GY) |
Temperature : |
5500 |
(K) |
Spectral type : |
DB |
UV portion[%]: |
6.9 |
Visible portion[%]: |
43.2 |
IR portion[%]: |
49.9 |
Metalicity : |
0.0 |
Absolute Magnitude: |
7.8 |
Apparent Magnitude: |
17.8 |
Right Ascension(RA) |
47.6365 |
Declination (DEC) |
-9.7517 |
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
Discovered by |
|
Discovery Paper - Authors |
|
Discovery Paper - Title |
|
Discovery Paper - Journal |
|
Discovery Paper - URL |
|
SIMBAD LINK |
|
Open Exoplanet Database Link |
|
![](CP_Eri_b_CSun.png) |
![](CP_Eri_b_CJup.png) |
![](CP_Eri_b_CNep.png) |
![](CP_Eri_b_CEar.png) |
/
CP Eri b
CP Eri b
CP Eri b is an exoplanet orbiting the star CP Eri, located about 3261.6 light-years (1000.0 pc) away from Solar System. Its discovery was publicly announced on 2011.
The host star CP Eri has apparent magnitude of 17.8, with absolute magnitude of 7.8. It is 0.8 times more massive and 0.6 times bigger compared with our Sun. The surface temperature is 5500 with its spectral types of DB
In this planetary system, the extrasolar planet CP Eri b orbits around the star CP Eri every 0.0 days with its orbital distance of 0.00 AU ( 186398.9 km)
(Projected orbit of CP Eri b around its host star CP Eri)
![](CP_Eri_b_Orb.png)
The Star CP Eri 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.423 AU ( 63254570.4 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.584 AU ( 87434346.6 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.891 AU ( 133230595.1 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 1.311 AU ( 196054657.1 km)
Radiation at Planetary Boundary of CP Eri b : 300909792.69 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star CP Eri)
![](CP_Eri_b_OrbH.png)
Kopparapu Recent Venus for Star CP Eri distance : 0.445 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star CP Eri distance : 0.564 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star CP Eri distance : 0.545 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star CP Eri distance : 0.598 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star CP Eri distance : 1.004 AU
Kopparapu Outer Boundary for Early Mars for Star CP Eri distance : 1.059 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star CP Eri)
![](CP_Eri_b_OrbK.png)
Original Kopparapu Recent Venus for Star CP Eri distance : 0.444 AU
Original Kopparapu Runaway Greenhouse for Star CP Eri distance : 0.580 AU
Original Kopparapu Moist Greenhouse for Star CP Eri distance : 0.587 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star CP Eri distance : 1.022 AU
Original Kopparapu Outer Boundary for Early Mars for Star CP Eri distance : 1.062 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star CP Eri)
![](CP_Eri_b_OrbKO.png)
(Position in Stellar Map of star CP Eri and its Exoplanet CP Eri b)
![](CP_Eri_b_STZ0.png)
(Zoomed position in Stellar Map of star CP Eri and its Exoplanet CP Eri b (zoom level 3))
![](CP_Eri_b_STZ3.png)
(Synthetic Spectrum of star CP Eri*)
![](CP_Eri_b_Spc.png)
*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