HD 79498: Difference between revisions
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| constell = [[Cancer (constellation)|Cancer]] |
| constell = [[Cancer (constellation)|Cancer]] |
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| component = |
| component = |
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| ra = {{RA|09|15|09. |
| ra = {{RA|09|15|09.4024}}<ref name="Gaia DR2"/> |
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| dec = {{DEC|+23|22|31. |
| dec = {{DEC|+23|22|31.9771}}<ref name="Gaia DR2"/> |
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| appmag_v = 8.03<ref name=epe_HD_79498_b/> |
| appmag_v = 8.03<ref name=epe_HD_79498_b/> |
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}} |
}} |
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{{Starbox astrometry |
{{Starbox astrometry |
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| radial_v = 19.83 ± 0.23<ref name=SIMBAD/> |
| radial_v = 19.83 ± 0.23<ref name=SIMBAD/> |
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| prop_mo_ra = −127. |
| prop_mo_ra = {{val|−127.312|0.106}}<ref name="Gaia DR2"/> |
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| prop_mo_dec = |
| prop_mo_dec = {{val|−155.619|0.085}}<ref name="Gaia DR2"/> |
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| parallax = |
| parallax = 20.4010 |
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| p_error = 0. |
| p_error = 0.0733 |
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| parallax_footnote = <ref name= |
| parallax_footnote = <ref name="Gaia DR2"/> |
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| absmag_v = |
| absmag_v = |
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}} |
}} |
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<ref name=epe_HD_79498_b>{{citation | first1=Jean | last1=Schneider | title=Planet HD 79498 b | publisher=Paris Observatory | work=The Extrasolar Planet Encyclopedia | url=http://exoplanet.eu/catalog/hd_79498_b/#9302 | accessdate=2012-08-22 }}</ref> |
<ref name=epe_HD_79498_b>{{citation | first1=Jean | last1=Schneider | title=Planet HD 79498 b | publisher=Paris Observatory | work=The Extrasolar Planet Encyclopedia | url=http://exoplanet.eu/catalog/hd_79498_b/#9302 | accessdate=2012-08-22 }}</ref> |
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<ref name= |
<ref name="Gaia DR2">{{Cite Gaia DR2|686996756484129664}}</ref> |
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<ref name=SIMBAD>{{cite simbad | title=HD 79498 | accessdate=15 August 2012 | postscript=. }}</ref> |
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<ref name=HIP>{{cite journal|title=Validation of the new Hipparcos reduction|author=van Leeuwen, F.|display-authors=etal|journal=Astronomy and Astrophysics|volume=474|issue=2|pages=653–664|date=2007|arxiv=0708.1752|bibcode=2007A&A...474..653V|doi=10.1051/0004-6361:20078357}}</ref> |
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Revision as of 17:02, 28 December 2018
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Cancer |
| Right ascension | 09h 15m 09.4024s[1] |
| Declination | +23° 22′ 31.9771″[1] |
| Apparent magnitude (V) | 8.03[2] |
| Characteristics | |
| Spectral type | G5[2] |
| Astrometry | |
| Radial velocity (Rv) | 19.83 ± 0.23[3] km/s |
| Proper motion (μ) | RA: −127.312±0.106[1] mas/yr Dec.: −155.619±0.085[1] mas/yr |
| Parallax (π) | 20.4010 ± 0.0733 mas[1] |
| Distance | 159.9 ± 0.6 ly (49.0 ± 0.2 pc) |
| Details[2] | |
| Mass | 1.06 M☉ |
| Temperature | 5740 ± 100 K |
| Metallicity [Fe/H] | 0.24 ± 0.06 dex |
| Age | 2.7 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 79498 is a star located approximately 160 light years away in the constellation Cancer.[3] This G5 spectral class star has an apparent magnitude of 8.03 and is about the same size and mass as the Sun. It has a higher than solar abundance of elements other than hydrogen and helium; what astronomers term a metal-rich star.[2] The McDonald Observatory planet search program discovered its planet using small changes in the star's motion.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | ≥1.34 ± 0.07 MJ | 3.13 ± 0.08 | 1966 ± 41 | 0.59 ± 0.02 | — | — |
See also
References
- ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c d Schneider, Jean, "Planet HD 79498 b", The Extrasolar Planet Encyclopedia, Paris Observatory, retrieved 2012-08-22
- ^ a b c "HD 79498". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 August 2012.
{{cite web}}: CS1 maint: postscript (link) - ^ a b Robertson, Paul; et al. (April 2012), "The McDonald Observatory Planet Search: New Long-period Giant Planets and Two Interacting Jupiters in the HD 155358 System", The Astrophysical Journal, 749 (1): 39, arXiv:1202.0265, Bibcode:2012ApJ...749...39R, doi:10.1088/0004-637X/749/1/39.
