NGC 686

NGC 686
Galassia lenticolare
NGC 686 nelle immagini Pan-STARRS
Scoperta
ScopritoreWilliam Herschel
Data26 ottobre 1785 [1]
Dati osservativi
(epoca J2000)
CostellazioneFornace
Ascensione retta01h 48m 56.1s [2]
Declinazione-23° 47′ 53″ [2][1]
Distanza213,5 milioni di a.l.
(65,46 Mpc) [2]
Magnitudine apparente (V)12,2 [3]
nella banda B: 13,2 [3]
Redshift+0,015614 ± 0,000037 [2]
Luminosità superficiale13,14
Angolo di posizione14° [3]
Velocità radiale4681 ± 11 [2] km/s
Caratteristiche fisiche
TipoGalassia lenticolare
ClasseSA0- [2], E-S0 [3], E/S0?? [1]
Dimensioni129 500 anni luce (39 690 pc) a.l.  
Altre designazioni
PGC 6655
MCG -4-5-8
ESO 477-6 [3]
Mappa di localizzazione
NGC 686
Categoria di galassie lenticolari

NGC 686 è una galassia lenticolare situata nella costellazione della Fornace, a una distanza di circa 213 milioni di anni luce dalla nostra Via Lattea.[1]

Scoperta

La galassia è stata scoperta il 26 ottobre 1785 dall'astronomo britannico di origini tedesche William Herschel.[1]

Note

  1. ^ a b c d e (EN) Courtney Seligman, Celestial Atlas Table of Contents, NGC 686, su cseligman.com. URL consultato il 12 luglio 2024.
  2. ^ a b c d e f Results for object NGC 686, su ned.ipac.caltech.edu, National Aeronautics and Space Administration / Infrared Processing and Analysis Center. URL consultato il 12 luglio 2024.
  3. ^ a b c d e (FR) Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», NGC 600 à 699, su astrovalleyfield.ca. URL consultato il 12 luglio 2024.

Voci correlate

Altri progetti

Collegamenti esterni

New General Catalogue: NGC 684  •  NGC 685  •  NGC 686  •  NGC 687  •  NGC 688
  Portale Astronomia

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