NGC 6040
| Galaxie NGC 6040 | |
|---|---|
 (c) ESA/Hubble, CC BY 4.0 | |
| Aufnahme mithilfe des Hubble-Weltraumteleskops von Arp 122 (r.), & NGC 6041 (l.u) | |
| AladinLite | |
| Sternbild | Herkules |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 16h 04m 26,6s[1] |
| Deklination | +17° 44′ 42″[1] |
| Erscheinungsbild | |
| Morphologischer Typ | SABc[1] |
| Helligkeit (visuell) | 13,9 mag[2] |
| Helligkeit (B-Band) | 14,6 mag[2] |
| Winkelausdehnung | 1,3′ × 0,7′[2] |
| Positionswinkel | 42°[2] |
| Flächenhelligkeit | 13,6 mag/arcmin²[2] |
| Physikalische Daten | |
| Zugehörigkeit | Herkules-Superhaufen (Abell 2151?)[1] |
| Rotverschiebung | 0,041200 ± 0,000097[1] |
| Radialgeschwindigkeit | (12310 ± 29) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) | (556 ± 39) · 106 Lj (170,50 ± 11,9) Mpc [1] |
| Durchmesser | 210.000 Lj[3] |
| Geschichte | |
| Entdeckung | Édouard Stephan |
| Entdeckungsdatum | 27. Juni 1870 |
| Katalogbezeichnungen | |
| NGC 6040 • UGC 10165 NED02 • PGC 56962 • CGCG 108-096N • MCG +03-41-74 • IRAS 16021+1753 • 2MASX J16042672+1745011 • Arp 122 NED 02 • VV 212 • GC 5799 • | |
NGC 6040 ist eine Balkenspiralgalaxie vom Hubble-Typ SABc im Sternbild Herkules am Nordsternhimmel. Sie gehört zum Herkules-Superhaufen, bildet zusammen mit der erst später entdeckten Galaxie PGC 56942 (auch NGC 6040B genannt) das interagierende Galaxienpaar Arp 122. Halton Arp gliederte seinen Katalog ungewöhnlicher Galaxien nach rein morphologischen Kriterien in Gruppen. Diese Galaxie gehört zu der Klasse Elliptischer Galaxien nahe bei Spiralgalaxien und diese störend (Arp-Katalog).
Das Objekt wurde am 27. Juni 1870 vom französischen Astronomen Édouard Stephan entdeckt.[4]
Weblinks
- NGC 6040. SIMBAD, abgerufen am 29. Mai 2016 (englisch).
- NGC 6040. DSO Browser, abgerufen am 29. Mai 2016 (englisch).
- Auke Slotegraaf: NGC 6040. Deep Sky Observer's Companion, abgerufen am 29. Mai 2016 (englisch).
- ARP ATLAS OF PECULIAR GALAXIES
- Seligman Arp
- When one plus one (eventually) equals one (engl.)
- CDS Portal
Literatur
- Jeff Kanipe und Dennis Webb: The Arp Atlas of Peculiar Galaxies – A Chronicle and Observer’s Guide, Richmond 2006, ISBN 978-0-943396-76-7
Einzelnachweise
Auf dieser Seite verwendete Medien
When one plus one (eventually) equals one (potw2402a).tiff
(c) ESA/Hubble, CC BY 4.0
This Hubble Picture of the Week features Arp 122, a peculiar galaxy that in fact comprises two galaxies — NGC 6040, the tilted, warped spiral galaxy and LEDA 59642, the round, face-on spiral — that are in the midst of a collision. This dramatic cosmic encounter is located at the very safe distance of roughly 570 million light-years from Earth. Peeking in at the corner is the elliptical galaxy NGC 6041, a central member of the galaxy cluster that Arp 122 resides in, but otherwise not participating in this monster merger.Galactic collisions and mergers are monumentally energetic and dramatic events, but they take place on a very slow timescale. For example, the Milky Way is on track to collide with its nearest galactic neighbour, the Andromeda Galaxy (M31), but these two galaxies have a good four billion years to go before they actually meet. The process of colliding and merging will not be a quick one either: it might take hundreds of millions of years to unfold. These collisions take so long because of the truly massive distances involved.Galaxies are composed of stars and their solar systems, dust and gas. In galactic collisions, therefore, these constituent components may experience enormous changes in the gravitational forces acting on them. In time, this completely changes the structure of the two (or more) colliding galaxies, and sometimes ultimately results in a single, merged galaxy. That may well be what results from the collision pictured in this image. Galaxies that result from mergers are thought to have a regular or elliptical structure, as the merging process disrupts more complex structures (such as those observed in spiral galaxies). It would be fascinating to know what Arp 122 will look like once this collision is complete . . . but that will not happen for a long, long time. [Image Description: Two spiral galaxies are merging together at the right side of the image. One is seen face-on and is circular in shape. The other seems to lie in front of the first one. This galaxy is seen as a disc tilted away from the viewer and it is partially warped. In the lower-left corner, cut off by the frame, a large elliptical galaxy appears as light radiating from a point. Various small galaxies cover the background.]
(c) ESA/Hubble, CC BY 4.0
This Hubble Picture of the Week features Arp 122, a peculiar galaxy that in fact comprises two galaxies — NGC 6040, the tilted, warped spiral galaxy and LEDA 59642, the round, face-on spiral — that are in the midst of a collision. This dramatic cosmic encounter is located at the very safe distance of roughly 570 million light-years from Earth. Peeking in at the corner is the elliptical galaxy NGC 6041, a central member of the galaxy cluster that Arp 122 resides in, but otherwise not participating in this monster merger.Galactic collisions and mergers are monumentally energetic and dramatic events, but they take place on a very slow timescale. For example, the Milky Way is on track to collide with its nearest galactic neighbour, the Andromeda Galaxy (M31), but these two galaxies have a good four billion years to go before they actually meet. The process of colliding and merging will not be a quick one either: it might take hundreds of millions of years to unfold. These collisions take so long because of the truly massive distances involved.Galaxies are composed of stars and their solar systems, dust and gas. In galactic collisions, therefore, these constituent components may experience enormous changes in the gravitational forces acting on them. In time, this completely changes the structure of the two (or more) colliding galaxies, and sometimes ultimately results in a single, merged galaxy. That may well be what results from the collision pictured in this image. Galaxies that result from mergers are thought to have a regular or elliptical structure, as the merging process disrupts more complex structures (such as those observed in spiral galaxies). It would be fascinating to know what Arp 122 will look like once this collision is complete . . . but that will not happen for a long, long time. [Image Description: Two spiral galaxies are merging together at the right side of the image. One is seen face-on and is circular in shape. The other seems to lie in front of the first one. This galaxy is seen as a disc tilted away from the viewer and it is partially warped. In the lower-left corner, cut off by the frame, a large elliptical galaxy appears as light radiating from a point. Various small galaxies cover the background.]