Imaginary Picture of HAT-P-46 c

Display orbital revolution of HAT-P-46 c around the hoststar HAT-P-46
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Exoplanet Name : HAT-P-46 c
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 2.0000 (Mjup) 635.8760 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.3870 (AU) 0.3870 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 0.2127
Orbital Period(Observed/Estimated) 77.70 (Days Obs.) 77.60 (Days Est.)
Surface Gravity (G Earth) 6.1409
Star Radiation at Atmospheric Boundary: 22385.1 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 545.9 (K)
Blackbody T 0.3(K) 512.7 (K)
Blackbody T 0.7(K) 414.8 (K)
Tidally Locked Blackbody T 0.1(K) 649.2 (K)
Tidally Locked Blackbody T 0.3(K) 609.7 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Primary Transit
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : HAT-P-46
Alternate Name :
Star Distance(LY) : 965.4
Stellar Radius(Rsun) : 1.4 (Rsun Measured)
Stellar Mass(Msun) : 1.3 (Msun Measured) 1.3 (Msun Estimated)
Star Age : 2.5 (GY)
Temperature : 6120 (K)
Spectral type : G0
UV portion[%]: 7.8
Visible portion[%]: 44.8
IR portion[%]: 47.4
Metalicity : 0.3
Absolute Magnitude: 4.6
Apparent Magnitude: 11.9
Right Ascension(RA) 270.4442
Declination (DEC) -2.9708
Hubble Space Telescope Guide Star Catalog (GSC) ID 05100-00045
Discovered by
Discovery Paper - Authors "J. D. Hartman, G. _. Bakos, G. Torres, G. Kov_cs, J. A. Johnson, A. W. Howard, G. W. Marcy, D. W. Latham, A. Bieryla, L. A. Buchhave, W. Bhatti, B. B_ky, Z. Csubry, K. Penev, M. de Val-Borro, R. W. Noyes, D. A. Fischer, G. A. Esquerdo, M. Everett, T. Szklen_r, G. Zhou, D. Bayliss, A. Shporer, B. J. Fulton, R. Sanchis-Ojeda, E. Falco, J. L_z_r, I. Papp, P. S_ri"
Discovery Paper - Title "HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems"
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HAT-P-46+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HAT-P-46%20c/
HAT-P-46 c
HAT-P-46 c
  • HAT-P-46 c is an exoplanet orbiting the star HAT-P-46, located about 965.4 light-years (296.0 pc) away from Solar System. Its discovery was publicly announced on 2013.
  • The host star HAT-P-46 has apparent magnitude of 11.9, with absolute magnitude of 4.6.
  • It is 1.3 times more massive and 1.4 times bigger compared with our Sun. The surface temperature is 6120 with its spectral types of G0
  • In this planetary system, the extrasolar planet HAT-P-46 c orbits around the star HAT-P-46 every 77.7 days with its orbital distance of 0.39 AU ( 57894376.0 km)
    • (Projected orbit of HAT-P-46 c around its host star HAT-P-46)


  • The Star HAT-P-46 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 1.133 AU ( 169451873.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 1.566 AU ( 234226772.3 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 2.386 AU ( 356909766.8 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 3.511 AU ( 525208357.0 km)
  • Radiation at Planetary Boundary of HAT-P-46 c : 22385.12 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HAT-P-46)



  • Kopparapu Recent Venus for Star HAT-P-46 distance : 1.150 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HAT-P-46 distance : 1.456 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HAT-P-46 distance : 1.406 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HAT-P-46 distance : 1.541 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-46 distance : 2.551 AU
  • Kopparapu Outer Boundary for Early Mars for Star HAT-P-46 distance : 2.690 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HAT-P-46)



  • Original Kopparapu Recent Venus for Star HAT-P-46 distance : 1.160 AU
  • Original Kopparapu Runaway Greenhouse for Star HAT-P-46 distance : 1.495 AU
  • Original Kopparapu Moist Greenhouse for Star HAT-P-46 distance : 1.534 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HAT-P-46 distance : 2.596 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HAT-P-46 distance : 2.700 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HAT-P-46)



    (Position in Stellar Map of star HAT-P-46 and its Exoplanet HAT-P-46 c)



    (Zoomed position in Stellar Map of star HAT-P-46 and its Exoplanet HAT-P-46 c (zoom level 3))

    (Synthetic Spectrum of star HAT-P-46*)
    *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