NGC 7139

Planetarischer Nebel
Daten von NGC 7139
AladinLite
Sternbild Kepheus
Position
Äquinoktium: J2000.0
Rektaszension 21h 46m 08,6s [1]
Deklination (Astronomie) +63° 47′ 31″ [1]
Erscheinungsbild
Scheinbare Helligkeit (visuell) 13,3 mag [2]
Scheinbare Helligkeit (B-Band) 13,0 mag [2]
Winkelausdehnung 1,28′ × 1,28′   [2]
Zentralstern
Bezeichnung Gaia DR3 2216734669893916800 
Physikalische Daten
Rotverschiebung −0,000181 [3]
Radialgeschwindigkeit −54,2 km/s [3]
Entfernung 4.570 Lj
(1.401 ± 280 pc) [4]
Geschichte
Entdeckung Wilhelm Herschel
Datum der Entdeckung 5. November 1787
Katalogbezeichnungen
 NGC 7139 • PK 104+7.1 • GC 4706 • H III 696 •

NGC 7139 ist ein planetarischer Nebel im Sternbild Kepheus, welcher etwa 4.600 Lichtjahre von der Erde entfernt ist.

NGC 7139 wurde am 5. November 1787 von dem deutsch-britischen Astronomen Friedrich Wilhelm Herschel entdeckt.[5]

Commons: NGC 7139 – Sammlung von Bildern, Videos und Audiodateien

Einzelnachweise

  1. ↑ NASA/IPAC EXTRAGALACTIC DATABASE
  2. ↑ a b SEDS: NGC 7139
  3. ↑ SIMBAD-Datenbank
  4. ↑ Skyhound
  5. ↑ Seligman

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