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8 Persei, som är stjärnans Flamsteed-betec … 8 Persei, som är stjärnans Flamsteed-beteckning, är en ensam stjärna belägen i den nordvästra delen av stjärnbilden, Perseus. Den har en skenbar magnitud på ca 5,76 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 7,8 mas, beräknas den befinna sig på ett avstånd på ca 416 ljusår (ca 127 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 0,7 km/s. Stjärnan ingår med 52 procent sannolikhet i rörelsegruppen Hyaderna-Plejaderna.khet i rörelsegruppen Hyaderna-Plejaderna.
, 8 Persei is a single star in the northern … 8 Persei is a single star in the northern constellation of Perseus, located 416 light years away from the Sun. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.757. There is an estimated 52% chance that the star may be a member of the Hyades–Pleiades stream of co-moving stars. With an age of over two billion years, this is an aging red giant of spectral type K3 III, a star that has used up its core hydrogen and is expanding. It has 1.83 times the mass of the Sun and has reached nearly 16 times the Sun's size. The star is radiating 108 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,560 K.re at an effective temperature of 4,560 K.
, 英仙座8，又名BD+57 535，HD 13982、SAO 23143、HR 661，是英仙座的一颗恒星，视星等为5.75，位于銀經134.25，銀緯-3.06，其B1900.0坐标为赤經2h 10m 54.8s，赤緯+57° -3.06′ 10″。
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| rdfs:comment |
英仙座8，又名BD+57 535，HD 13982、SAO 23143、HR 661，是英仙座的一颗恒星，视星等为5.75，位于銀經134.25，銀緯-3.06，其B1900.0坐标为赤經2h 10m 54.8s，赤緯+57° -3.06′ 10″。
, 8 Persei, som är stjärnans Flamsteed-betec … 8 Persei, som är stjärnans Flamsteed-beteckning, är en ensam stjärna belägen i den nordvästra delen av stjärnbilden, Perseus. Den har en skenbar magnitud på ca 5,76 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 7,8 mas, beräknas den befinna sig på ett avstånd på ca 416 ljusår (ca 127 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 0,7 km/s. Stjärnan ingår med 52 procent sannolikhet i rörelsegruppen Hyaderna-Plejaderna.khet i rörelsegruppen Hyaderna-Plejaderna.
, 8 Persei is a single star in the northern … 8 Persei is a single star in the northern constellation of Perseus, located 416 light years away from the Sun. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.757. There is an estimated 52% chance that the star may be a member of the Hyades–Pleiades stream of co-moving stars.Hyades–Pleiades stream of co-moving stars.
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8 Persei
, 大陵增二
|
