DP Leonis b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>DP Leonis</td></tr><tr> <td colspan="2">Constellation</td> <td>Leo</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>11h 17m 16s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+17° 57′ 41″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>17.5</td></tr><tr><td colspan="2">Distance</td><td>1304 ly
(400 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>DA / M5V?</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>8.6 AU
(1290 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>21.5 mas</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>8693 d
(23.8 y)</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>6.28 (± 0.58) MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>2009-12-16</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Qian et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Timing</td></tr><tr> <td colspan="2">Discovery status</td> <td>Preprint[1]</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>

DP Leonis b is an extrasolar planet, orbiting the 17th magnitude star DP Leonis, constellation Leo. This 6.28 MJ planet orbits two stars, composing of white dwarf and red dwarf at a separation of about 8.6 AU with unknown eccentricity.[1]

References Edit

  1. 1.0 1.1 (2009). DETECTION OF A GIANT EXTRASOLAR PLANET ORBITING THE ECLIPSING POLAR DP LEO. The Astrophysical Journal 708 (1): L66-L68.

Coordinates: Sky map 11h 17m 16s, +17° 57′ 41″

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