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- Van_Biesbroeck_8 abstract "Van Biesbroeck 8 (vB 8, Gliese 644 C) is a low-luminosity star in the constellation Ophiuchus, cataloged in the 20th century (in 1961) by the astronomer George Van Biesbroeck. It is the smallest, faintest, and most separated component of the quintuple star system Gliese 644/643 — the richest stellar system in the immediate solar neighbourhood (d<10pc). Classified as a red dwarf star, it is approximately 18.7 light years from our solar system and possesses about 9% of the mass of the Sun. In 1984, apparently erroneous information led to the belief that the first extra-solar "planet" (later deemed to possibly be a brown dwarf) was orbiting Van Biewsbroeck 8. The object, termed Van Biesbroeck 8b, was twice confirmed, but subsequent attempts to locate it were unsuccessful.".
- Van_Biesbroeck_8 thumbnail Ophiuchus_constellation_map.png?width=300.
- Van_Biesbroeck_8 wikiPageExternalLink sim-ref?querymethod=bib&simbo=on&submit=submit+bibcode&bibcode=1990A%26A...231..131T.
- Van_Biesbroeck_8 wikiPageExternalLink vanBiesbrock.html.
- Van_Biesbroeck_8 wikiPageID "6929669".
- Van_Biesbroeck_8 wikiPageRevisionID "564686577".
- Van_Biesbroeck_8 absmagV "17.75".
- Van_Biesbroeck_8 appmagV "9.048".
- Van_Biesbroeck_8 bV "18.7".
- Van_Biesbroeck_8 class "M6.5V".
- Van_Biesbroeck_8 constell Ophiuchus.
- Van_Biesbroeck_8 epoch "J2000.0".
- Van_Biesbroeck_8 hasPhotoCollection Van_Biesbroeck_8.
- Van_Biesbroeck_8 pError "0.52".
- Van_Biesbroeck_8 parallax "154.96".
- Van_Biesbroeck_8 propMoDec "-7.84639".
- Van_Biesbroeck_8 propMoRa "3.160889".
- Van_Biesbroeck_8 uB "16.7".
- Van_Biesbroeck_8 subject Category:M-type_main-sequence_stars.
- Van_Biesbroeck_8 subject Category:Ophiuchus_(constellation).
- Van_Biesbroeck_8 type CelestialBody.
- Van_Biesbroeck_8 type Star.
- Van_Biesbroeck_8 type PhysicalBody.
- Van_Biesbroeck_8 comment "Van Biesbroeck 8 (vB 8, Gliese 644 C) is a low-luminosity star in the constellation Ophiuchus, cataloged in the 20th century (in 1961) by the astronomer George Van Biesbroeck. It is the smallest, faintest, and most separated component of the quintuple star system Gliese 644/643 — the richest stellar system in the immediate solar neighbourhood (d<10pc). Classified as a red dwarf star, it is approximately 18.7 light years from our solar system and possesses about 9% of the mass of the Sun.".
- Van_Biesbroeck_8 label "Van Biesbroeck 8".
- Van_Biesbroeck_8 sameAs m.0gxk6y.
- Van_Biesbroeck_8 sameAs Q5176357.
- Van_Biesbroeck_8 sameAs Q5176357.
- Van_Biesbroeck_8 wasDerivedFrom Van_Biesbroeck_8?oldid=564686577.
- Van_Biesbroeck_8 depiction Ophiuchus_constellation_map.png.
- Van_Biesbroeck_8 isPrimaryTopicOf Van_Biesbroeck_8.
- Van_Biesbroeck_8 name "Van Biesbroeck 8".
