Imaginary Picture of UCAC4 204-003910 b

Display orbital revolution of UCAC4 204-003910 b around the hoststar UCAC4 204-003910
/
Exoplanet Name : UCAC4 204-003910 b
Alternate Name : CWISE J040351.12-491605.4
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 30.0000 (Mjup) 9538.1400 (Mearth)
Semi Major Axis / Orbital Distance Calculated 1400.0000 (AU) 1400.0000 (AU Est.)
Eccentricity : 0.0000
Orbital Period(Yrs) 68718.1734
Orbital Period(Observed/Estimated) 25100000.00 (Days Obs.) 27445057.40 (Days Est.)
Surface Gravity (G Earth) 92.1130
Star Radiation at Atmospheric Boundary: 0.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 3.2 (K)
Blackbody T 0.3(K) 3.0 (K)
Blackbody T 0.7(K) 2.5 (K)
Tidally Locked Blackbody T 0.1(K) 3.8 (K)
Tidally Locked Blackbody T 0.3(K) 3.6 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Imaging
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Not habitable
Habitability by Kopparapu: Not habitable
Star Name : UCAC4 204-003910
Alternate Name : SCR J0403-4916
Star Distance(LY) : 136.7
Stellar Radius(Rsun) : 0.5 (Rsun Measured)
Stellar Mass(Msun) : 0.5 (Msun Measured) 0.6 (Msun Estimated)
Star Age : 14.0 (GY)
Temperature : 3681 (K)
Spectral type : M2V
UV portion[%]: 0.3
Visible portion[%]: 13.1
IR portion[%]: 86.6
Metalicity : 0.4
Absolute Magnitude: 9.7
Apparent Magnitude: 12.8
Right Ascension(RA) 60.9734
Declination (DEC) -49.2745
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
UCAC4 204-003910 b
UCAC4 204-003910 b

  • UCAC4 204-003910 b is an exoplanet orbiting the star UCAC4 204-003910, located about 136.7 light-years (41.9 pc) away from Solar System. Its discovery was publicly announced on 2024.
  • The host star UCAC4 204-003910 has apparent magnitude of 12.8, with absolute magnitude of 9.7.
  • It is 0.5 times more massive and 0.5 times bigger compared with our Sun. The surface temperature is 3681 with its spectral types of M2V
  • In this planetary system, the extrasolar planet UCAC4 204-003910 b orbits around the star UCAC4 204-003910 every 25100000.0 days with its orbital distance of 1400.00 AU ( 209437018980.0 km)
  • (Projected orbit of UCAC4 204-003910 b around its host star UCAC4 204-003910)


  • The Star UCAC4 204-003910 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.143 AU ( 21433769.5 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.198 AU ( 29627070.7 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 0.302 AU ( 45145099.3 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 0.444 AU ( 66432991.3 km)
  • Radiation at Planetary Boundary of UCAC4 204-003910 b : 0.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star UCAC4 204-003910)



  • Kopparapu Recent Venus for Star UCAC4 204-003910 distance : 0.161 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star UCAC4 204-003910 distance : 0.204 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star UCAC4 204-003910 distance : 0.197 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star UCAC4 204-003910 distance : 0.217 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star UCAC4 204-003910 distance : 0.394 AU
  • Kopparapu Outer Boundary for Early Mars for Star UCAC4 204-003910 distance : 0.416 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star UCAC4 204-003910)



  • Original Kopparapu Recent Venus for Star UCAC4 204-003910 distance : 0.160 AU
  • Original Kopparapu Runaway Greenhouse for Star UCAC4 204-003910 distance : 0.211 AU
  • Original Kopparapu Moist Greenhouse for Star UCAC4 204-003910 distance : 0.212 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star UCAC4 204-003910 distance : 0.400 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star UCAC4 204-003910 distance : 0.416 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star UCAC4 204-003910)



    (Position in Stellar Map of star UCAC4 204-003910 and its Exoplanet UCAC4 204-003910 b)



    (Zoomed position in Stellar Map of star UCAC4 204-003910 and its Exoplanet UCAC4 204-003910 b (zoom level 3))

    (Synthetic Spectrum of star UCAC4 204-003910*)
    *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