NGC 4449

NGC 4449
Galassia irregolare
La galassia “NGC 4449”
Scoperta
ScopritoreWilliam Herschel
Data1788
Dati osservativi
(epoca J2000)
CostellazioneCani da Caccia
Ascensione retta12h 28m 11,1s
Declinazione+44° 05′ 37″
Distanza9,1 milioni a.l.
(2,8 milioni pc)
Magnitudine apparente (V)9,8
Dimensione apparente (V)6,2' x 4,4'
Caratteristiche fisiche
TipoGalassia irregolare
ClasseIrr III
Altre designazioni
C 21; UGC 7592
Mappa di localizzazione
NGC 4449
Categoria di galassie irregolari

NGC 4449, (nota anche come C 21), è una galassia irregolare nella costellazione dei Cani da Caccia.

Si trova circa 2,5 gradi a NNW della stella β Canum Venaticorum. È una galassia di forma irregolare, che si mostra con una forma quasi rettangolare, dovuta alla presenza di una struttura a barra che le conferisce un aspetto allungato; la parte settentrionale è molto ricca di nebulose. Dista dalla Via Lattea circa 9 milioni di anni-luce, il che ne fa una delle galassie più vicine al nostro Gruppo Locale.

Bibliografia

  • Catalogo NGC/IC online, su ngcicproject.org. URL consultato il 7 settembre 2009 (archiviato dall'url originale il 28 maggio 2009).
  • Tirion, Rappaport, Lovi, Uranometria 2000.0, William-Bell inc. ISBN 0-943396-14-X

Voci correlate

Altri progetti

Collegamenti esterni

New General Catalogue: NGC 4447  •  NGC 4448  •  NGC 4449  •  NGC 4450  •  NGC 4451
  Portale Astronomia

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