FANDOM


BD+14°4559 b
Extrasolar planet List of extrasolar planets
300px
Artist's conception of BD+14°4559 b, as a jovian planet.
Parent star

<tr> <td colspan="2">Star</td> <td>BD+14°4559</td></tr><tr> <td colspan="2">Constellation</td> <td>Pegasus</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>21h 13m 35.99s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+14° 41′ 21.8″[1]</td></tr><tr><td colspan="2">Distance</td><td>158 ± 9[1] ly
(48 ± 3[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K2V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.777 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.552 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>1.002 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.29 ± 0.03</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>268.94 ± 0.99 d
(0.7363 ± 0.0027 y)</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>87.64 ± 7.87°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>53293.71 ± 6.35 JD</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.47 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>June 10, 2009</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Niedzielski et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>La Silla Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr> <tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
Encyclopaedia
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

BD+14°4559 b is an extrasolar planet located approximately 158 light years away in the constellation of Pegasus, orbiting the 10th magnitude K-type main sequence star BD+14°4559. It has a mass 147% that of Jupiter and takes 0.74 Earth years to orbit the star.[2] This planet was discovered on June 10, 2009 using the Hobby-Eberly Telescope.

See also Edit

References Edit

  1. 1.0 1.1 1.2 1.3 (2007). Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2): 653–664. Vizier catalog entry
  2. (2009). Substellar-mass Companions to the K-dwarf BD+14 4559 and the K-giants HD 240210 and BD+20 2457. The Astrophysical Journal 707 (1): 768–777.


Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.