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  2. Centaurus A - Wikipedia

    en.wikipedia.org/wiki/Centaurus_A

    Centaurus A is located approximately 4° north of Omega Centauri (a globular cluster visible with the naked eye). [14] Because the galaxy has a high surface brightness and relatively large angular size, it is an ideal target for amateur astronomy observations.

  3. Caldwell catalogue - Wikipedia

    en.wikipedia.org/wiki/Caldwell_catalogue

    Centaurus: 5.3 C98 NGC 4609 Open Cluster: 4.2 Crux: 6.9 C99 - Coalsack Nebula: Dark Nebula: 0.61 Crux - C100 IC 2944: Lambda Centauri Nebula: Open Cluster and Nebula: 6 Centaurus: 4.5 C101 NGC 6744 Spiral Galaxy: 34,000 Pavo: 9 C102 IC 2602: Theta Car Cluster: Open Cluster: 0.492 Carina: 1.9 C103 NGC 2070: Tarantula Nebula: Open Cluster and ...

  4. Hubble sequence - Wikipedia

    en.wikipedia.org/wiki/Hubble_sequence

    The Hubble sequence is a morphological classification ... NGC 2787, NGC 5866, Centaurus A. Spirals ... Another criticism of the Hubble classification scheme is that ...

  5. NGC 4603 - Wikipedia

    en.wikipedia.org/wiki/NGC_4603

    NGC 4603 is a spiral galaxy located about 107 [2] million light years away in the constellation Centaurus. It is a member of the Centaurus Cluster of galaxies, belonging to the section designated "Cen30". The morphological classification is SA(s)c, [4] which indicates it is a pure spiral galaxy with relatively loosely wound arms. [5]

  6. Atlas of Peculiar Galaxies - Wikipedia

    en.wikipedia.org/wiki/Atlas_of_Peculiar_Galaxies

    The atlas includes the nearby radio galaxies M87 (Arp 152) and Centaurus A (Arp 153). The peculiar associations present in the catalogue are now interpreted as galaxy mergers or non-interacting line-of-sight overlap, though Arp disputed that idea, claiming that apparent associations were examples of ejections.

  7. Abell S740 - Wikipedia

    en.wikipedia.org/wiki/Abell_S740

    Hubble Illuminates Cluster of Diverse Galaxies in Abell S740. Observation data (Epoch J2000) Constellation(s) Centaurus: ... class: 0 [3] Bautz–Morgan ...

  8. List of active United States Air Force aircraft - Wikipedia

    en.wikipedia.org/wiki/List_of_active_United...

    4 total force as of September 2023 (USAF Almanac). [1] T-51 Cessna: United States basic trainer: T-51A: 3 3 total force as of September 2023 (USAF Almanac). [1] T-53A Kadet II: United States basic trainer: T-53A: 24 24 T-53A total force as of September 2023 (USAF Almanac). [1] 25 T-53A operational (WAF 2025). [2] TC-135 Stratolifter: United ...

  9. Galaxy morphological classification - Wikipedia

    en.wikipedia.org/wiki/Galaxy_morphological...

    Spiral galaxy UGC 12591 is classified as an S0/Sa galaxy. [1]The Hubble sequence is a morphological classification scheme for galaxies invented by Edwin Hubble in 1926. [2] [3] It is often known colloquially as the “Hubble tuning-fork” because of the shape in which it is traditionally represented.