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词条 HD 23127
释义

  1. Star

  2. Planetary system

  3. See also

  4. References

  5. External links

{{Starbox begin
| name = HD 23127
}}{{Starbox observe
| epoch = J2000.0
| constell = Reticulum
| ra = {{RA|03|39|23.6380}}[1]
| dec = {{DEC|−60|04|40.2386}}[1]
| appmag_v = +8.58
}}{{Starbox character
| class = G2V
| r-i =
| v-r =
| b-v = 0.65
| u-b =
| variable = “None”
}}{{Starbox astrometry
| radial_v =
| prop_mo_ra = {{val|73.621|0.042}}[1]
| prop_mo_dec = {{val|142.847|0.045}}[1]
| parallax = 10.6258
| p_error = 0.0232
| parallax_footnote = [1]
| absmag_v = 3.83
}}{{Starbox detail
| mass = 1.26 ± 0.04
| radius = 1.71 ± 0.03
| luminosity = 3.01 ± 0.03
| gravity = 4.06 ± 0.02
| temperature = 5843 ± 52
| metal = +0.34
| rotation = ~46.1 days
| age_gyr = 4.8 ± 0.6
}}{{Starbox catalog
| names = CD-60°762, GSC 08867-00913, HIP 17054, SAO 248860
}}{{Starbox reference
| Simbad = HD+23127
}}{{Starbox end}}

HD 23127 is a star in the Reticulum constellation. At the distance of 307 ly, it is not visible to the naked eye, but it is visible with a good pair of binoculars.

Star

HD 23127 is a hydrogen-fusing sun-like star with spectrum G2V. The star is more massive than our Sun at 1.13 solar mass. The star is also more metal-rich, meaning it contains two times more metals [Fe/H] than our Sun. It is older than the local star at 7 billion years, more than halfway through its life.

Planetary system

On Friday, February 9, 2007, a 1214-day period jovian planet was found by using the wobble method by O’Toole in Australia. It has minimum mass 37% greater than Jupiter and orbits in 44% eccentricity. The distance from the star ranges from 1.28 to 3.30 astronomical units with the average distance 2.29 AU.[12]

{{OrbitboxPlanet begin
| table_ref = [12]
}}{{OrbitboxPlanet
| exoplanet = b
| mass = >1.5 ± 0.2
| period = 1214 ± 9
| semimajor = 2.4 ± 0.3
| eccentricity = 0.44 ± 0.07
}}{{Orbitbox end}}

See also

  • List of extrasolar planets

References

1. ^{{Cite Gaia DR2|4680773217379728128}}
2. ^{{cite journal | title=New Planets around Three G Dwarfs | last1=O'Toole | first1=Simon J. | last2=Butler | first2=R. Paul | last3=Tinney | first3=C. G. | last4=Jones | first4=Hugh R. A. | last5=Marcy | first5=Geoffrey W. | last6=Carter | first6=Brad | last7=McCarthy | first7=Chris | last8=Bailey | first8=Jeremy | last9=Penny | first9=Alan J. | display-authors=1 | journal=The Astrophysical Journal | volume=660 | issue=2 | pages=1636–1641 | year=2007 | arxiv=astro-ph/0702213 | bibcode=2007ApJ...660.1636O | doi=10.1086/513563 }}
[1][2]
}}

External links

  • {{cite web |url=http://exoplanet.eu/star.php?st=HD+23127 |title=HD 23127 |work=The Extrasolar Planets Encyclopedia}}
{{Sky|03|39|23.639|-|60|04|40.230|290.73}}{{Stars of Reticulum}}

6 : Henry Draper Catalogue objects|Hipparcos objects|Planetary systems|Reticulum (constellation)|G-type main-sequence stars|Durchmusterung objects

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