NGC 6622

NGC 6622
HUT tarafından elde edilen fotoğrafta NGC 6621 (merkezde) ve NGC 6622 (solda).
Gözlem verisi (Dönem J2000)
TakımyıldızEjderha
Sağ açıklık (α)18sa 12d 59.8s[1]
Dik açıklık (δ)+68° 21′ 14″[1]
Galaksi sınıfıSa[1]
Görünür büyüklük (V)+15,0[2]
Görünür büyüklük (B)+15,8[2]
Yüzey parlaklığı (SB)13,7[2]
Boyut0,5′ × 0,4′ [1]
Özellikler
Kırmızıya kayma (z)0,021568 ± 0,000100[1]
Helyo dikey hız ()(+6466 ± 30) km/sn[1]
Mesafe284,08 MIy (87,1 Mpc)[1]
Keşif
Edward D. Swift (1885)
Katalog belirtmeleri
NGC 6622 • IRAS 18131+6820 • 2MASX J18125527+6821484 • Arp 81 • MCG +11-22-031 • PGC 61579 • UGC 11175 • VV 247 • ZWG 322.36 • VII Zw 778 • Kara 194 • KCPG 534A
  Wikimedia Commons'ta ilgili ortam

NGC 6622, Ejderha takımyıldızı bölgesinde yaklaşık olarak 284,08 MIy (87,1 Mpc)uzaklıkta bulunan bir sarmal gökadadır. Edward D. Swift tarafından 2 Haziran 1885 tarihinde keşfedildi.[3] Halton Arp tarafından görüntülenmiş ve NGC 6621 ile birlikte Arp 81 olarak "Eşlikçileri büyük ve yüksek yüzey parlaklığına sahip sarmal gökadalar" kategorisi altında Tuhaf Gökadalar Atlası'na dahil edilmiştir.[4]

Gökada, NGC 6621 ile güçlü bir etkileşim halindedir. NGC 6621, 6622'den daha büyüktür ve yapısı oldukça bozulmuştur. Çarpışma, iki gökada arasındaki yıldız oluşumlarını tetiklemiştir. En yoğun yıldız oluşumu, süper yıldız kümeleri olarak da bilinen büyük aydınlık kümelerin bulunduğu iki çekirdek arasındaki bölgede gözlenir. En büyük gelgit kuvveti de bu bölgede görülür. Ayrıca NGC 6621'in kuyruğunda ve çekirdeğinde çok sayıda büyük küme gözlenmiştir.[5][6]

Kaynakça

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Searching NED for object "NGC 6622*" (İngilizce). Erişim tarihi: 23 Temmuz 2010. 
  2. ^ a b c "SEDS". Revised NGC Data for NGC 6622 (İngilizce). 4 Mart 2016 tarihinde kaynağından arşivlendi. 
  3. ^ Seligman, Courtney. "NGC 6622 (= PGC 61582, and with NGC 6621 = Arp 81)". 1 Şubat 2019 tarihinde kaynağından arşivlendi. Erişim tarihi: 7 Eylül 2019. 
  4. ^ Arp, Halton (1966). "Atlas of Peculiar Galaxies". Figure 1. 25 Ekim 2018 tarihinde kaynağından arşivlendi. Erişim tarihi: 7 Eylül 2019. 
  5. ^ Keel, William C.; Borne, Kirk D. (Eylül 2003). "Massive Star Clusters in Ongoing Galaxy Interactions: Clues to Cluster Formation". The Astronomical Journal. 126 (3). ss. 1257-1275. arXiv:astro-ph/0307025 $2. Bibcode:2003AJ....126.1257K. doi:10.1086/377482. 
  6. ^ "HubbleSite: Image - Hubble Interacting Galaxy NGC 6621". hubblesite.org. 27 Aralık 2018 tarihinde kaynağından arşivlendi. Erişim tarihi: 27 Aralık 2018. 

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