NGC 6804

Planetarischer Nebel
NGC 6804
Aufnahme des Hubble-Weltraumteleskops
Aufnahme des Hubble-Weltraumteleskops
AladinLite
Sternbild Adler
Position
Äquinoktium: J2000.0
Rektaszension 19h 31m 35,4s [1]
Deklination (Astronomie) +09° 13′ 31″ [1]
Erscheinungsbild
Scheinbare Helligkeit (visuell) 12,0 mag [2]
Scheinbare Helligkeit (B-Band) 12,2 mag [2]
Winkelausdehnung 1,1' [2]
Zentralstern
Bezeichnung HD 183932 
Physikalische Daten
Rotverschiebung −0.000043 
Radialgeschwindigkeit −13 km/s 
Entfernung 2.301 ± 120 Lj 
Geschichte
Entdeckung William Herschel
Datum der Entdeckung 25. August 1791
Katalogbezeichnungen
 NGC 6804 • PK 45-4.1 • GC 4499 • H VI 38 • h 2043 •

NGC 6804 (andere Bezeichnung PK 045-04.1) ist ein planetarischer Nebel im Sternbild Adler. Das Objekt wurde am 25. August 1791 von William Herschel entdeckt.[3]

Einzelnachweise

  1. ↑ NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b SEDS: NGC 6804
  3. ↑ Seligman

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