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MLS® # W4576660 Alpha Sculptoris - Wikipedia
Die ligging van Alpha Sculptoris (in die rooi sirkel).
Spektraaltipe B7 IIIp
Regte klimming 00h 58m 36.35930s
Deklinasie -29° 21′ 26.8247″
Skynmagnitude (m) 4,3
Absolute magnitude (M) -2,58
Massa (M☉) 5,01
Radius (R☉) 7,52
Ligsterkte (L☉) 1 549
Ouderdom (jaar) 93 miljoen
Temperatuur (K) 13 600
Afstand (ligjaar) 780
Rotasiespoed (km/s) 17
Metaalinhoud [Fe/H] 0,90
Veranderlikheid SX Ari
CD−30° 297, FK5 35, HD 5737, HIP 4577, HR 280, SAO 166716
Alpha Sculptoris (afgekort as α Scl) is ’n blouwit ster in die suidelike sterrebeeld Beeldhouer (Sculptor). Met ’n skynbare magnitude van 4,3 is dit die helderste ster in hierdie andersins dowwe sterrebeeld. Volgens parallaksmetings is dit sowat 780 ligjare van die Son af.
Dit is ’n B-tipe reusester en ’n SX Arietis-veranderlike. Sy helderheid wissel met minder as ’n 10de van ’n magnitude.
Alpha Sculptoris se ligsterkte is sowat 1 500 keer dié van die Son en sy effektiewe temperatuur 13 600 K. Sy radius is sowat sewe keer en sy massa vyf keer die Son s'n.
↑ Houk, Nancy (1979), "Michigan catalogue of two-dimensional spectral types for the HD stars", Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0 (Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan) 3, Bibcode: 1982mcts.book.....H
↑ 5,0 5,1 Gutierrez-Moreno, Adelina et al. (1966), "A System of photometric standards", Publ. Dept. Astron. Univ. Chile (Publicaciones Universidad de Chile, Department de Astronomy) 1: 1–17, Bibcode: 1966PDAUC...1....1G
↑ 6,0 6,1 6,2 (2006) “Evolutionary state of magnetic chemically peculiar stars”. Astronomy and Astrophysics 450 (2): 763. doi:10.1051/0004-6361:20054596.
↑ (2014) “Interferometry of chemically peculiar stars: Theoretical predictions versus modern observing facilities”. Monthly Notices of the Royal Astronomical Society 443 (2): 1629. doi:10.1093/mnras/stu1259.
↑ 8,0 8,1 (2014) “On the nature of sn stars. I. A detailed abundance study”. Astronomy & Astrophysics 562: A128. doi:10.1051/0004-6361/201322091.
↑ Schmitt, A. (Maart 1973), "The weak-helium-line star α Sculptoris. I. The line-spectrum", Astronomy and Astrophysics Supplement 9: 427, Bibcode: 1973A&AS....9..427S
↑ 10,0 10,1 (2009) “VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)”. VizieR On-line Data Catalog: B/gcvs. Oorspronklik gepubliseer in: 2009yCat....102025S 1.
↑ "alf Scl". Simbad. Centre de données astronomiques de Strasbourg. Besoek op 2012-04-08.
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