Imaginary Picture of 2M 1252+2735 b

Display orbital revolution of 2M 1252+2735 b around the hoststar 2M 1252+2735
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Exoplanet Name : 2M 1252+2735 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 6.8800 (Mjup) 2187.4134 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.0000 (AU) 0.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.0960
Orbital Period(Observed/Estimated) 35.08 (Days Obs.) 0.00 (Days Est.)
Surface Gravity (G Earth) 21.1246
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 0.0 (K)
Blackbody T 0.3(K) 0.0 (K)
Blackbody T 0.7(K) 0.0 (K)
Tidally Locked Blackbody T 0.1(K) 0.0 (K)
Tidally Locked Blackbody T 0.3(K) 0.0 (K)
Size Class: Jupiter-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 : 2M 1252+2735
Alternate Name :
Star Distance(LY) : 643.2
Stellar Radius(Rsun) : 0.8 (Rsun Estimated)
Stellar Mass(Msun) : 0.0 (Msun Measured) 0.0 (Msun Estimated)
Star Age : 0.0 (GY)
Temperature : 5440 (K)
Spectral type : G8IV
UV portion[%]: 6.6
Visible portion[%]: 42.8
IR portion[%]: 50.6
Metalicity : 0.0
Absolute Magnitude: 5.5
Apparent Magnitude: 12.0
Right Ascension(RA) 193.2125
Declination (DEC) 27.5869
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
2M 1252+2735 b
2M 1252+2735 b

  • 2M 1252+2735 b is an exoplanet orbiting the star 2M 1252+2735, located about 643.2 light-years (197.2 pc) away from Solar System. Its discovery was publicly announced on 2021.
  • The host star 2M 1252+2735 has apparent magnitude of 12.0, with absolute magnitude of 5.5.
  • In this planetary system, the extrasolar planet 2M 1252+2735 b orbits around the star 2M 1252+2735 every 35.1 days with its orbital distance of 0.00 AU ( 0.0 km)
  • (Projected orbit of 2M 1252+2735 b around its host star 2M 1252+2735)


  • The Star 2M 1252+2735 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.517 AU ( 77267751.7 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.714 AU ( 106804225.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.088 AU ( 162746003.7 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.601 AU ( 239487873.8 km)
  • Radiation at Planetary Boundary of 2M 1252+2735 b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star 2M 1252+2735)



  • Kopparapu Recent Venus for Star 2M 1252+2735 distance : 0.546 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star 2M 1252+2735 distance : 0.691 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star 2M 1252+2735 distance : 0.668 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star 2M 1252+2735 distance : 0.732 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 1252+2735 distance : 1.233 AU
  • Kopparapu Outer Boundary for Early Mars for Star 2M 1252+2735 distance : 1.301 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star 2M 1252+2735)



  • Original Kopparapu Recent Venus for Star 2M 1252+2735 distance : 0.543 AU
  • Original Kopparapu Runaway Greenhouse for Star 2M 1252+2735 distance : 0.711 AU
  • Original Kopparapu Moist Greenhouse for Star 2M 1252+2735 distance : 0.719 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star 2M 1252+2735 distance : 1.255 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star 2M 1252+2735 distance : 1.305 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star 2M 1252+2735)



    (Position in Stellar Map of star 2M 1252+2735 and its Exoplanet 2M 1252+2735 b)



    (Zoomed position in Stellar Map of star 2M 1252+2735 and its Exoplanet 2M 1252+2735 b (zoom level 3))

    (Synthetic Spectrum of star 2M 1252+2735*)
    *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