| 释义 |
- References
{{Starbox begin
| name=Gliese 638 }}{{Starbox observe
| epoch=J2000
| ra={{RA|16|45|06.3511}}
| dec={{DEC| +33|30|33.226}}
| appmag_v=8.11
| constell=Hercules }}{{Starbox character
| class=K7V[1]
| b-v=1.37
| u-b=1.29
| variable=Suspected }}{{Starbox astrometry
| radial_v=-29.6±0.9
| prop_mo_ra=-39.18
| prop_mo_dec=383.43
| parallax=101.59
| p_error=0.23
| absmag_v=8.11[ }}{{Starbox catalog]
| names=GJ 638, BD +33°2777, HD 151288, LTT 14967, SAO 65525, NSV 7951, HIP 82003. }}{{Starbox reference
| Simbad=NSV+7951 }}{{Starbox end}}Gliese 638 is a main sequence star in the constellation of Hercules. It is located about 31.9 light years from the Earth. This is a suspected variable star with a measured apparent magnitude that ranges from 8.09–8.11.[2] As a K-class star, it has a lower mass than the Sun, and consequently is less luminous. References1. ^{{cite journal | last=Wilson | first=O. C. | title=Relationship between colors and spectra of late main-sequence stars | journal=Astrophysical Journal | date=1962 | volume=136 | pages=793–799 | bibcode=1962ApJ...136..793W | doi=10.1086/147437 }}
2. ^{{cite book | author=Kukarkin, B. V. | display-authors=etal | date=1981 | title=Catalogue of suspected variable stars | publisher=Academy of Sciences | location=Moscow, USSR }}
}}{{Stars of Hercules}}{{main-star-stub}} 6 : Hercules (constellation)|K-type main-sequence stars|Henry Draper Catalogue objects|Gliese and GJ objects|Hipparcos objects|Durchmusterung objects |