HD 50554 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 50554</td></tr><tr> <td colspan="2">Constellation</td> <td>Gemini</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>06h 54m 42.8253s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+24° 14′ 44.011″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>6.860</td></tr><tr><td colspan="2">Distance</td><td>101.21 ly
(31.03 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F8V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>2.28 ± 0.13[1] AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.444 ± 0.038[1]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>1224 ± 12[1] d</td></tr><tr> <td>Argument of
</td> <td style="text-align: center">(ω)</td> <td>7.4 ± 4.3[1]°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2450646 ± 16[1] JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>91.5 ± 7.6[1] m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>4.46 ± 0.48[1] MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>April 4, 2001[2]</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Geneva Extrasolar Planet Search</td></tr><tr> <td colspan="2">Discovery method</td> <td>doppler spectroscopy</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[3][4]</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 50554 b is a Jupiter-sized extrasolar planet with minimum mass 4.4 times that of Jupiter. The planet was announced in 2001 by the European Southern Observatory and confirmed in 2002 using observations from the Lick and Keck telescopes.[2][3]

See also Edit

References Edit

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 (2006). Catalog of Nearby Exoplanets. The Astrophysical Journal 646 (1): 505–522.
  2. 2.0 2.1 Script error
  3. 3.0 3.1 (2002). Planetary Companions to HD 136118, HD 50554, and HD 106252. Publications of the Astronomical Society of the Pacific 114 (795): 529–535.
  4. (2003). The ELODIE survey for northern extra-solar planets. I. Six new extra-solar planet candidates. Astronomy and Astrophysics 410 (3): 1039–1049.

External links Edit

  • HD 50554 b. The Extrasolar Planets Encyclopaedia.

Coordinates: Sky map 06h 54m 42.8253s, +24° 14′ 44.011″

de:HD 50554 b

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.