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22 Camelopardalis, som är stjärnans Flamst … 22 Camelopardalis, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna i den södra delen av stjärnbilden Giraffen. Den har en kombinerad skenbar magnitud på ca 7,03 och kräver åtminstone en fältkikare för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 15,4 mas, beräknas den befinna sig på ett avstånd på ca 212 ljusår (ca 65 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 10 km/s. Den listades av Eggen (1991) som en medlem av superhopen IC 2391 och har också blivit katalogiserad som ingående i Hyaderna, men båda fallen betvivlades emellertid av Griffin (2005). betvivlades emellertid av Griffin (2005).
, 22 Camelopardalis is a binary star system … 22 Camelopardalis is a binary star system in the northern circumpolar constellation of Camelopardalis, located 212 light years away from the Sun. It has an apparent visual magnitude of 7.03, which is below the normal limit for visibility with the naked eye. This object is moving further from the Earth with a mean heliocentric radial velocity of +10 km/s. Eggen (1991) listed it as a member of the IC 2391 supercluster. It has also been catalogued as a member of the Hyades group. However, Griffin (2005) suggests it belongs to neither. This is a single-lined spectroscopic binary system with an orbital period of 81.5 days and a significant eccentricity of 0.14. It has an 'a sin i' value of 10.57 ± 0.27 Gm (0.0707 ± 0.0018 AU), where a is the semimajor axis and i is the orbital inclination to the line of sight from the Earth. This value provides a lower bound on the true semimajor axis of their orbit. The visible component is an F-type main-sequence star with a stellar classification of F5 V. It is an estimated 1.5 billion years old with 1.3 times the mass of the Sun and 1.7 times the Sun's radius. It is radiating 5.2 times the Sun's luminosity from its photosphere at an effective temperature of 6,732 K.re at an effective temperature of 6,732 K.
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| rdfs:comment |
22 Camelopardalis is a binary star system … 22 Camelopardalis is a binary star system in the northern circumpolar constellation of Camelopardalis, located 212 light years away from the Sun. It has an apparent visual magnitude of 7.03, which is below the normal limit for visibility with the naked eye. This object is moving further from the Earth with a mean heliocentric radial velocity of +10 km/s. Eggen (1991) listed it as a member of the IC 2391 supercluster. It has also been catalogued as a member of the Hyades group. However, Griffin (2005) suggests it belongs to neither.fin (2005) suggests it belongs to neither.
, 22 Camelopardalis, som är stjärnans Flamst … 22 Camelopardalis, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna i den södra delen av stjärnbilden Giraffen. Den har en kombinerad skenbar magnitud på ca 7,03 och kräver åtminstone en fältkikare för att kunna observeras. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 15,4 mas, beräknas den befinna sig på ett avstånd på ca 212 ljusår (ca 65 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 10 km/s. Den listades av Eggen (1991) som en medlem av superhopen IC 2391 och har också blivit katalogiserad som ingående i Hyaderna, men båda fallen betvivlades emellertid av Griffin (2005). betvivlades emellertid av Griffin (2005).
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22 Camelopardalis
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