|
Exoplanet Name : |
TOI-178 d |
|
Alternate Name : |
|
|
Status : |
Confirmed |
|
Radius (Rjup / Re): |
0.2295 |
(Rjup) |
2.5720 |
(Rearth) |
|
Mass (Mjup / Me): |
0.0095 |
(Mjup) |
3.0109 |
(Mearth) |
|
Semi Major Axis / Orbital Distance Calculated |
0.0592 |
(AU) |
0.0592 |
(AU Est.) |
|
Eccentricity : |
0.0000 |
|
Orbital Period(Yrs) |
0.0180 |
|
Orbital Period(Observed/Estimated) |
6.56 |
(Days Obs.) |
0.00 |
(Days Est.) |
|
Surface Gravity (G Earth) |
0.4551 |
|
Star Radiation at Atmospheric Boundary: |
48971.9 |
(W/m2) |
|
Measured Temperature (K) |
0.0 |
(K) |
|
Blackbody T 0.1(K) |
663.9 |
(K) |
|
Blackbody T 0.3(K) |
623.5 |
(K) |
|
Blackbody T 0.7(K) |
504.5 |
(K) |
|
Tidally Locked Blackbody T 0.1(K) |
789.6 |
(K) |
|
Tidally Locked Blackbody T 0.3(K) |
741.5 |
(K) |
|
Size Class: |
sub-Neptune-size |
|
Mass Class: |
|
|
Detection Type : |
Primary Transit |
|
Mass Detection : |
Radial Velocity |
|
Radius Detection : |
Primary Transit |
|
Habitability by Solar Eq. Astronomical Unit: |
Not habitable |
|
Habitability by Kopparapu: |
Not habitable |
|
Star Name : |
TOI-178 |
|
Alternate Name : |
TYC 6991-475-1 |
|
Star Distance(LY) : |
205.5 |
|
Stellar Radius(Rsun) : |
0.7 |
(Rsun Measured) |
|
Stellar Mass(Msun) : |
0.0 |
(Msun Measured) |
0.6 |
(Msun Estimated) |
|
Star Age : |
0.0 |
(GY) |
|
Temperature : |
4111 |
(K) |
|
Spectral type : |
K6 |
|
UV portion[%]: |
0.8 |
|
Visible portion[%]: |
26.1 |
|
IR portion[%]: |
73.1 |
|
Metalicity : |
0.0 |
|
Absolute Magnitude: |
8.0 |
|
Apparent Magnitude: |
12.0 |
|
Right Ascension(RA) |
7.3000 |
|
Declination (DEC) |
-30.4536 |
|
Hubble Space Telescope Guide Star Catalog (GSC) ID |
|
|
Discovered by |
|
|
Discovery Paper - Authors |
|
|
Discovery Paper - Title |
|
|
Discovery Paper - Journal |
|
|
Discovery Paper - URL |
|
|
SIMBAD LINK |
http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=TYC+6991-475-1&submit=SIMBAD+search |
|
Open Exoplanet Database Link |
|
 |
 |
 |
 |
/
TOI-178 d
TOI-178 d
TOI-178 d is an exoplanet orbiting the star TOI-178, located about 205.5 light-years (63.0 pc) away from Solar System. Its discovery was publicly announced on 2018.
The host star TOI-178 has apparent magnitude of 12.0, with absolute magnitude of 8.0.
In this planetary system, the extrasolar planet TOI-178 d orbits around the star TOI-178 every 6.6 days with its orbital distance of 0.06 AU ( 8856193.9 km)
(Projected orbit of TOI-178 d around its host star TOI-178)
The Star TOI-178 's habitable zone is located at the following distance
Inner Boundary (the orbital distance at Venus's Equivalent Radiation )
: 0.256 AU ( 38339911.5 km)
Earth Boundary (the orbital distance at Earth's Equivalent Radiation)
: 0.354 AU ( 52995777.1 km)
Outer Boundary (the orbital distance at Mars's Equivalent Radiation)
: 0.540 AU ( 80753836.4 km)
Snow Line (the orbital distance at Snow Line Equivalent Radiation)
: 0.794 AU ( 118832807.8 km)
Radiation at Planetary Boundary of TOI-178 d : 48971.95 W/m2
(Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star TOI-178)
Kopparapu Recent Venus for Star TOI-178 distance : 0.286 AU
Kopparapu Runaway Greenhouse for Earth-sized planet for Star TOI-178 distance : 0.362 AU
Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star TOI-178 distance : 0.350 AU
Kopparapu Runaway Greenhouse for Mars-sized planet for Star TOI-178 distance : 0.385 AU
Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-178 distance : 0.684 AU
Kopparapu Outer Boundary for Early Mars for Star TOI-178 distance : 0.722 AU
(Habitable zone calculated based on Kopparapu et al.(2013) around the star TOI-178)
Original Kopparapu Recent Venus for Star TOI-178 distance : 0.283 AU
Original Kopparapu Runaway Greenhouse for Star TOI-178 distance : 0.375 AU
Original Kopparapu Moist Greenhouse for Star TOI-178 distance : 0.374 AU
Original Kopparapu Outer Boundary for Maximum Greenhouse for Star TOI-178 distance : 0.695 AU
Original Kopparapu Outer Boundary for Early Mars for Star TOI-178 distance : 0.723 AU
(Habitable zone calculated based on Kopparapu et al.(Original) around the star TOI-178)
(Position in Stellar Map of star TOI-178 and its Exoplanet TOI-178 d)
(Zoomed position in Stellar Map of star TOI-178 and its Exoplanet TOI-178 d (zoom level 3))
(Synthetic Spectrum of star TOI-178*)
*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
