NGC 676

NGC 676
NGC 676
NGC676 - SDSS DR14.jpg
슬론 디지털 스카이 서베이에서 관측된 NGC 676 은하.회절 스파이크는 별 BD +04 0244가 [1]핵에 겹쳐 있기 때문입니다.
관찰 데이터(J2000 epoch)
콘스텔레이션물고기자리
적경01hm 48 57.199s[2]
적위+5°54°27.10°[2]F
레드시프트0.004983±0.000083[3]
거리18.7 Mpc(61 Mly)
겉보기 등급 (V)10.5 +/- 0.4 [4]
특성.
유형S0/a: 엣지온[2]
겉보기 크기 (V)4180.0 × 1180[2].2
기타 명칭
UGC 01270, Ark 057,[5] CGCG 412-028, CGCG 0146.3+0540, PGC 6656[2]

NGC 676물고기자리 [2]방향으로 약 18.7m 떨어진 렌즈상[6] 세이퍼트 2 은하입니다[4].그것은 물고기자리 [6]α 별 근처에서 볼 수 있다.천구의 적도 근처에 위치해 있어 양쪽 [6]반구에서 볼 수 있습니다.BD +04 0244는 겉보기 등급 10.44의 별이며,[2] 핵에서 남남서쪽으로 5.1초 사이에 겹친다.이것은 Marat Arakelian의 고표면 밝기 [5]은하 목록에 설명된 621개의 은하 중 하나입니다.

NGC 676(SDSS)

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레퍼런스

  1. ^ Nemiroff, Robert; Bonnell, Jerry (15 April 2001). "Diffraction Spikes: When Stars Look Like Crosses". Astronomy Photo of the Day. Astrophysics Science Division at NASA. Retrieved 26 August 2020. Unusual appendages around bright stars are commonplace, but never seem to be mentioned. What are they? First, a telescope brings starlight falling over a large area to a small area. To get at this small area, however, one must go inside a reflecting telescope, and one good way to do this is to use support rods, which are right in the view of the telescope. The wave nature of light causes it to deflect when passing near these rods. Light scatters away from the original destination point ending up elsewhere and appearing as "diffraction spikes." These annoying spikes steal precious light from the central image and hide light from fainter, more interesting stars.
  2. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 676. Retrieved 22 August 2020.
  3. ^ Paturel, G; Dubois, P; Petit, C; Woelfel, F (January 2002). "Comparison LEDA/SIMBAD". LEDA. Retrieved 24 August 2020.
  4. ^ a b "NGC 676". SIMBAD. The Centre de Données Astronomiques de Strasbourg (CDS). Retrieved 23 August 2020.
  5. ^ a b Arakelian, Marat (January 1975). "The Galaxies of High Surface Brightness". Communications of the Byurakan Astrophysical Observatory. 47: 3–42. Bibcode:1975CoBAO..47....3A. Retrieved 25 August 2020.
  6. ^ a b c "NGC 676 - Lenticular Galaxy". TheSkyLive.com. TheSkyLive.com. Retrieved 23 August 2020.

외부 링크

좌표:Sky map 01hm 48 57.199s, +05°54°27.10°