IC 2163
| Galaxie IC 2163 | |
|---|---|
_(2024-136).jpg) | |
| Die Galaxien NGC 2207 (links) und IC 2163 (rechts) aufgenommen vom Hubble-Weltraumteleskop | |
| AladinLite | |
| Sternbild | Großer Hund |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 06h 16m 28,0s [1] |
| Deklination | −21° 22′ 33″ [1] |
| Erscheinungsbild | |
| Morphologischer Typ | SB(rs)c pec[1] |
| Helligkeit (visuell) | 11,7 mag[2] |
| Helligkeit (B-Band) | 12,4 mag[2] |
| Winkelausdehnung | 3′ × 1,2′[2] |
| Positionswinkel | 98°[2] |
| Flächenhelligkeit | 12,9 mag/arcmin²[2] |
| Physikalische Daten | |
| Zugehörigkeit | LDCE 431[1] |
| Rotverschiebung | 0,009223 ± 0,000067[1] |
| Radialgeschwindigkeit | (2755 ± 20) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) | (116 ± 8) · 106 Lj (35,5 ± 2,5) Mpc [1] |
| Geschichte | |
| Entdeckung | Herbert Alonzo Howe |
| Entdeckungsdatum | 11. Februar 1898 |
| Katalogbezeichnungen | |
| IC 2163 • UGC A 125 • PGC 18751 • ESO 556-009 • MCG -04-15-021 • 2MASX J06162800-2122330 • SGC 061420-2121.4 • | |
IC 2163 ist eine Balkenspiralgalaxie im Sternbild Großer Hund südlich des Himmelsäquators, die etwa 116 Millionen Lichtjahre von der Milchstraße entfernt ist. Sie kollidiert gegenwärtig mit der größeren Spiralgalaxie NGC 2207. Die Entfernungsmessungen basierend auf den Radialgeschwindigkeiten stimmen nicht mit den rotverschiebungsunabhängigen Entfernungsschätzungen von 61 ± 17 Millionen Lichtjahren überein.
Entdeckt wurde das Objekt am 11. Februar 1898 vom US-amerikanischen Astronomen Herbert Alonzo Howe.[3]
(c) NASA, ESA, CSA, STScI, CC BY-SA IGO 3.0IC 2163 and NGC 2207 aufgenommen vom Hubble-Weltraumteleskop und dem James Webb-Weltraumteleskop
Literatur
- König, Michael & Binnewies, Stefan (2019): Bildatlas der Galaxien: Die Astrophysik hinter den Astrofotografien, Stuttgart: Kosmos, S. 223
Weblinks
Commons: IC 2163 – Sammlung von Bildern, Videos und Audiodateien
- Spitzer Space Telescope ( vom 24. Juli 2008 im Internet Archive)
- GoBlack
- SIMBAD Query
- ESO: Ein allsehendes Auge
- astronews.com: Begegnung im All 8. November 1999
- astronews.com: Bild des Tages 11. November 2016
Einzelnachweise
Auf dieser Seite verwendete Medien
Galaxies IC 2163 and NGC 2207 (Hubble and Webb Images Side by Side) (2024-136).jpg
View of two overlapping spiral galaxies, IC 2163 and NGC 2207, seen by Hubble.
View of two overlapping spiral galaxies, IC 2163 and NGC 2207, seen by Hubble.
Hubble & Webb- Galaxies IC 2163 and NGC 2207 ESA503090.jpg
(c) NASA, ESA, CSA, STScI, CC BY-SA IGO 3.0
The gruesome palette of these galaxies is owed to a mix of mid-infrared light from the NASA/ESA/CSA James Webb Space Telescope, and visible and ultraviolet light from the NASA/ESA Hubble Space Telescope. The pair grazed one another millions of years ago. The smaller spiral on the left, catalogued as IC 2163, passed behind NGC 2207, the larger spiral galaxy at right.
Both have increased star formation rates. Combined, they are estimated to form the equivalent of two dozen new stars that are the size of the Sun annually. Our Milky Way galaxy forms the equivalent of two or three new Sun-like stars per year.
Both galaxies have hosted seven known supernovae, each of which may have cleared space in their arms, rearranging gas and dust that later cooled, and allowed many new stars to form. Find these areas by looking for the bluest regions.
[Image description: Two spiral galaxies take up almost the entire view and appear to be overlapping. The galaxy at left, IC 2163, is smaller and more compact than the galaxy at right, NGC 2207. The black background of space is dotted with foreground stars and extremely distant galaxies.]
Read more
(c) NASA, ESA, CSA, STScI, CC BY-SA IGO 3.0
The gruesome palette of these galaxies is owed to a mix of mid-infrared light from the NASA/ESA/CSA James Webb Space Telescope, and visible and ultraviolet light from the NASA/ESA Hubble Space Telescope. The pair grazed one another millions of years ago. The smaller spiral on the left, catalogued as IC 2163, passed behind NGC 2207, the larger spiral galaxy at right.
Both have increased star formation rates. Combined, they are estimated to form the equivalent of two dozen new stars that are the size of the Sun annually. Our Milky Way galaxy forms the equivalent of two or three new Sun-like stars per year.
Both galaxies have hosted seven known supernovae, each of which may have cleared space in their arms, rearranging gas and dust that later cooled, and allowed many new stars to form. Find these areas by looking for the bluest regions.
[Image description: Two spiral galaxies take up almost the entire view and appear to be overlapping. The galaxy at left, IC 2163, is smaller and more compact than the galaxy at right, NGC 2207. The black background of space is dotted with foreground stars and extremely distant galaxies.]
Read more