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NGC 497

NGC 497
NGC 497 (SDSS)
Dữ liệu quan sát (Kỷ nguyên J2000)
Chòm saoKình Ngư
Xích kinh01h 22m 23.76s [1]
Xích vĩ−00° 52′ 30.75″ [1]
Dịch chuyển đỏ0.027155 [1]
Vận tốc xuyên tâm Mặt Trời8141 ± 3 km/s [1]
Khoảng cách336 Mly [1]
Cấp sao biểu kiến (V)13.00 [2]
Cấp sao biểu kiến (B)13.80 [2]
Đặc tính
KiểuSBbc
Kích thước biểu kiến (V)2.03 x 0.79 [1]
Tên gọi khác
PGC 4992, MCG 0-4-100, UGC 915, Arp 8

NGC 497 là một thiên hà xoắn ốc có thanh chắn cách Trái Đất khoảng 336 triệu năm ánh sáng, nằm trong chòm sao Kình Ngư. Nó được phát hiện bởi nhà thiên văn học người Pháp Édouard Stephan vào ngày 6 tháng 11 năm 1882.[3]

NGC 497 đã được Halton Arp chụp ảnh và đưa vào Atlas các thiên hà kỳ lạ của ông với tên gọi Arp 8, thuộc loại thiên hà 'phân nhánh'.[4]

NGC 497 (SDSS)

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Tham khảo

  1. ^ a b c d e f “NASA/IPAC Extragalactic Database”. ned.ipac.caltech.edu. Truy cập ngày 29 tháng 11 năm 2017.
  2. ^ a b “Revised NGC Data for NGC 497”. spider.seds.org. Truy cập ngày 9 tháng 12 năm 2017.
  3. ^ “Data for NGC 497”. www.astronomy-mall.com. Truy cập ngày 9 tháng 12 năm 2017.
  4. ^ Arp, Halton (1966). “Atlas of Peculiar Galaxies”. Figure 1. Truy cập ngày 29 tháng 11 năm 2017.

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