NGC 6840

Asterismus
NGC 6840
File:Aquila_IAU.svg
Sternbild Adler
Position
Äquinoktium: J2000.0
Rektaszension 19h 55m 16,2s[1]
Deklination +12° 06′ 53″[1]
Weitere Daten
Winkelausdehnung

4,0'[2]

Entfernung

6400 Lj (1970 pc)[3]

Geschichte
Entdeckung

Wilhelm Herschel

Datum der Entdeckung

4. September 1784

Katalogbezeichnungen
NGC 6839 • h 2058 • GC 4522 • H VIII 19
AladinLite

NGC 6840 ist ein Asterismus im Sternbild Aquila. Er wurde am 4. September 1784 von Wilhelm Herschel entdeckt.[4]

Einzelnachweise

  1. ↑ NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ SEDS: NGC 6840
  3. ↑ A. L. Tadross: A catalog of 120 NGC open star cluster. In: Journal of the Korean Astronomical Society, 44, 2011, S. 1–11. doi:10.5303/JKAS.2011.44.1.1.
  4. ↑ Seligman

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