NGC 4495
| Galaxie NGC 4495 | |
|---|---|
 | |
| Aufnahme mithilfe des Víctor M. Blanco Telescope | |
| AladinLite | |
| Sternbild | Haar der Berenike |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 12h 31m 22,7s[1] |
| Deklination | +29° 08′ 12″[1] |
| Erscheinungsbild | |
| Morphologischer Typ | Sab / LINER / pec?[1][2] |
| Helligkeit (visuell) | 13,3 mag[2] |
| Helligkeit (B-Band) | 14,1 mag[2] |
| Winkelausdehnung | 1.40 × 0.8[2] |
| Positionswinkel | 130°[2] |
| Flächenhelligkeit | 13,3 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0.015177 ±0.000020[1] |
| Radialgeschwindigkeit | (4550 ± 6) km/s[1] |
| Hubbledistanz vrad / H0 | (204 ± 14) · 106 Lj (62,4 ± 4,4) Mpc [1] |
| Geschichte | |
| Entdeckung | William Herschel |
| Entdeckungsdatum | 13. März 1785 |
| Katalogbezeichnungen | |
| NGC 4495 • UGC 7663 • PGC 41438 • CGCG 159-009 • MCG +05-30-012 • IRAS 12289+2924 • 2MASX J12312290+2908109 • GC 3044 • H III 301 • h 1310 • NVSS J123122+290811 | |
NGC 4495 ist eine Spiralgalaxie mit aktivem Galaxienkern vom Hubble-Typ Sab im Sternbild Haar der Berenike am Nordsternhimmel. Sie ist schätzungsweise 204 Millionen Lichtjahre von der Milchstraße entfernt und hat einen Durchmesser von etwa 85.000 Lj.
Im selben Himmelsareal befinden sich u. a. die Galaxien NGC 4514, IC 3402, IC 3441, IC 3451.
Die Supernovae SN 1994S, SN 2010lo und SN 2011ca wurden hier beobachtet.[3]
Das Objekt wurde am 13. März 1785 vom deutsch-britischen Astronomen William Herschel entdeckt.[4]
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NGC4495 - Iotw2241a.jpg
Autor/Urheber: Noirlab, Lizenz: CC BY-SA 4.0
The constellation Coma Berenices hosts the galaxy NGC 4495 among myriad other astronomical objects. This galaxy has a tumultuous history: several supernovae have been recorded over the years, including the three named 1994S, 2010lo, and 2011ca. This last burst of energy from a dying star can be triggered by a number of different processes. 1994S, for example, was triggered by interactions between a white dwarf and another star, which reignited the core of the stellar remnant— a Type Ia supernova. 2011ca on the other hand is a Type Ic supernova, triggered by the core collapse of a single massive star. This image was captured by the DOE-built Dark Energy Camera (DECam) on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO) as partof the DESI Legacy Imaging Surveys. The DESI Legacy Imaging Surveys were conducted to identify targets for the Dark Energy Spectroscopic Instrument (DESI) operations. These surveys comprise a unique blend of three projects that have observed a third of the night sky. DESI is an international sciencecollaboration managed by the US Department of Energy's (DOE) Lawrence Berkeley National Laboratory with primary funding for construction and operations from DOE’s Office of Science.
Autor/Urheber: Noirlab, Lizenz: CC BY-SA 4.0
The constellation Coma Berenices hosts the galaxy NGC 4495 among myriad other astronomical objects. This galaxy has a tumultuous history: several supernovae have been recorded over the years, including the three named 1994S, 2010lo, and 2011ca. This last burst of energy from a dying star can be triggered by a number of different processes. 1994S, for example, was triggered by interactions between a white dwarf and another star, which reignited the core of the stellar remnant— a Type Ia supernova. 2011ca on the other hand is a Type Ic supernova, triggered by the core collapse of a single massive star. This image was captured by the DOE-built Dark Energy Camera (DECam) on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO) as partof the DESI Legacy Imaging Surveys. The DESI Legacy Imaging Surveys were conducted to identify targets for the Dark Energy Spectroscopic Instrument (DESI) operations. These surveys comprise a unique blend of three projects that have observed a third of the night sky. DESI is an international sciencecollaboration managed by the US Department of Energy's (DOE) Lawrence Berkeley National Laboratory with primary funding for construction and operations from DOE’s Office of Science.