词条 | HD 23127 |
释义 |
| 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. StarHD 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 systemOn 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
References1. ^1 2 3 4 5 {{Cite Gaia DR2|4680773217379728128}} [1][2]2. ^1 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 }} }} External links
6 : Henry Draper Catalogue objects|Hipparcos objects|Planetary systems|Reticulum (constellation)|G-type main-sequence stars|Durchmusterung objects |
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