“Gliese 806”的意思、由来-开放百科全书

词条

Gliese 806

释义

A planetary companion?
References

{{Starbox begin
| name = Gliese 806
}}{{Starbox observe
| epoch = J2000
| constell = Cygnus
| ra = {{RA|20|45|04.10}}
| dec = {{DEC|+44|29|56.66}}
| appmag_v = +10.84
}}{{Starbox character
| class = M1.5V
}}{{Starbox astrometry
| dist_ly = 40.75
| dist_pc = 12.5
}}{{Starbox detail
| mass = 0.48
| radius = 0.44
| luminosity = 0.027
| temperature = {{val|3540}}
}}{{Starbox catalog
| names = HIP 102401, GJ 806, TYC 3178-00633-1, 2MASS J20450403+4429562
}}{{Starbox reference
| Simbad = GJ+806
}}{{Starbox end}}

Gliese 806 is a red dwarf star in the constellation of Cygnus, located roughly 41 light years from the Sun. The star is suspected to host a substellar companion yet unconfirmed.

A planetary companion?

According to Marcy & Benitz (1989)^[1] detected a possible periodicity of 416 days, inferring possible presence of a massive planetary object with minimum mass of 11 times that of Jupiter. So far the planet has not been confirmed.

{{OrbitboxPlanet begin
| table_ref=^[1]
| period_unit=day
}}{{OrbitboxPlanet hypothetical
| exoplanet = b
| mass = ≥11
| period = 416
| semimajor = 0.878
| eccentricity = 0.2
}}{{Orbitbox end}}

References

1. ^¹{{cite journal| doi=10.1086/167812| author=Marcy & Benitz| last2=Benitz| first2=Karsten J.| title=A search for substellar companions to low-mass stars| journal=Astrophysical Journal, Part 1| volume=344|issue=1|pages=441–453 |year=1989|bibcode=1989ApJ...344..441M}}

4 : Cygnus (constellation)|M-type main-sequence stars|Hypothetical planetary systems|Gliese and GJ objects

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