HD 142 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 142</td></tr><tr> <td colspan="2">Constellation</td> <td>Phoenix[1]</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>00h 06m 19.18s[2]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–49° 04′ 30.7″[2]</td></tr><tr><td colspan="2">Distance</td><td>83.9 ± 0.8[2] ly
(25.7 ± 0.2[2] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F7V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.02 ± 0.03[3] AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.17 ± 0.06[3]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>349.7 ± 1.2[3] d</td></tr><tr> <td>Argument of
</td> <td style="text-align: center">(ω)</td> <td>327 ± 26[3]°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,452,683 ± 26[3] JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>33.2 ± 2.5[3] m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.25 ± 0.15[3] MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>Oct 15, 2001</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Anglo-Australian Planet Search team[4]</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy</td></tr><tr> <td colspan="2">Discovery site</td> <td>Australian Astronomical Observatory[4]</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[4]</td></tr>

HD 142 b is a jovian exoplanet approximately 84 light years away[2] in the constellation of Phoenix. This planet was discovered in 2001 by the Anglo-Australian Planet Search team.[4]

References Edit

  1. (1987). Identification of a Constellation From a Position. Publications of the Astronomical Society of the Pacific 99 (617): 695–699. Vizier query form
  2. 2.0 2.1 2.2 2.3 2.4 (2007). Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2): 653–664. Vizier catalog entry
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 (2012). The Anglo-Australian Planet Search. XXII. Two New Multi-planet Systems. The Astrophysical Journal 753 (2).
  4. 4.0 4.1 4.2 4.3 (2002). Two Extrasolar Planets from the Anglo-Australian Planet Search. The Astrophysical Journal 571 (1): 528–531.

External links Edit

  • HD 142 b. The Extrasolar Planets Encyclopaedia.
  • HD 142. Open Exoplanet Catalogue. Retrieved 2014-09-08.

Coordinates: Sky map 00h 06m 19.1755s, −49° 04′ 30.688″

es:HD 142#HD 142 b

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