HD 47536 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 47536</td></tr><tr> <td colspan="2">Constellation</td> <td>Canis Major</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>06h 37m 47.618s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−32° 20′ 23.04″[1]</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>5.261</td></tr><tr><td colspan="2">Distance</td><td>400 ± 10[1] ly
(123 ± 3[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0III</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.61 AU
(241 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>13.3 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>1.26 AU
(188 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>1.96 AU
(293 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.2 ± 0.08</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>430 d
(1.18 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>40.8 km/s</td></tr><tr> <td>Argument of
</td> <td style="text-align: center">(ω)</td> <td>260.8 ± 23.7°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,451,599 ± 21.5 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>113 ± 11 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>4.96 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>January 22, 2003[2]</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Setiawan et al.[3]</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>23x15px Chile</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[3]</td></tr> <tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

HD 47536 b is an extrasolar planet located approximately 400 light-years away[1] in the constellation of Canis Major, orbiting the star HD 47536. The mass and semimajor axis are not exactly known, the mass can either be 4.96 or 9.67 MJ and semimajor axis can either be 1.61 or 2.25 AU, both depending on the mass of parent star. The orbital period about HD 47536 is 430 days or 1.18 years.

Its inclination and thereby true mass is being calculated via astrometry with Hubble. The astrometricians expect publication by mid-2009.[4]

See alsoEdit


  1. 1.0 1.1 1.2 1.3 1.4 (2007). Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2): 653–664.Vizier catalog entry
  2. Script error
  3. 3.0 3.1 (2003). Evidence of a sub-stellar companion around HD 47536. Astronomy and Astrophysics 398 (2): L19–L23.
  4. Template:Cite arXiv

External linksEdit

  • HD 47536. Exoplanets. Retrieved 2008-08-23.

Coordinates: Sky map 06h 37m 47.6189s, −32° 20′ 23.045″

de:HD 47536 b

es:HD 47536#Sistema planetario

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