IC 4653
| Galaxie IC 4653 | |
|---|---|
 (c) ESA/Hubble, CC BY 4.0 | |
| Aufnahme des Weltraum-Hubble-Teleskops | |
| AladinLite | |
| Sternbild | Altar |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 17h 27m 07,2s[1] |
| Deklination | −60° 52′ 47″[1] |
| Erscheinungsbild | |
| Morphologischer Typ | (R)SBcd? pec[1] |
| Helligkeit (visuell) | 12,3 mag[2] |
| Helligkeit (B-Band) | 13,2 mag[2] |
| Winkelausdehnung | 1,10' × 0,6'[2] |
| Positionswinkel | 52°[2] |
| Flächenhelligkeit | 11,7 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0.006404 ± 0.000183[1] |
| Radialgeschwindigkeit | (1920 ± 55) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) | (81 ± 6) · 106 Lj (24,9 ± 1,9) Mpc [1] |
| Geschichte | |
| Entdeckung | DeLisle Stewart |
| Entdeckungsdatum | Juli 1901 |
| Katalogbezeichnungen | |
| IC 4653 • PGC 60311 • ESO 138-028 • 2MASX J17270693-6052448 • AM 1722-605 • | |
IC 4653 ist eine Balken-Spiralgalaxie vom Hubble-Typ SBcd pec im Sternbild Altar am Südsternhimmel. Sie ist rund 81 Millionen Lichtjahre von der Milchstraße entfernt.
Das Objekt wurde im Juli 1901 von DeLisle Stewart entdeckt.[3]
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IC 4653 a Familiar Sight.jpg
(c) ESA/Hubble, CC BY 4.0
This image from the NASA/ESA Hubble Space Telescope shows IC 4653, a galaxy just above 80 million light-years from Earth. That may sound like quite a distance, but it’s not that far on a cosmic scale. At these kinds of distances, the types and structures of the objects we see are similar to those in our local area. Thie galaxy's whirling arms tells us a story about what’s happening inside this galaxy. Stars are generally brighter and bluer when they are younger, so the blue patches mark sites of new star formation. Studying the structures of other galaxies is a key way to learn about the structure of our own, given that humans can’t leave the Milky Way to look back and see what it looks like from the outside. It helps to compare our observations of our home galaxy with those of nearby galaxies we can see in their entirety.
(c) ESA/Hubble, CC BY 4.0
This image from the NASA/ESA Hubble Space Telescope shows IC 4653, a galaxy just above 80 million light-years from Earth. That may sound like quite a distance, but it’s not that far on a cosmic scale. At these kinds of distances, the types and structures of the objects we see are similar to those in our local area. Thie galaxy's whirling arms tells us a story about what’s happening inside this galaxy. Stars are generally brighter and bluer when they are younger, so the blue patches mark sites of new star formation. Studying the structures of other galaxies is a key way to learn about the structure of our own, given that humans can’t leave the Milky Way to look back and see what it looks like from the outside. It helps to compare our observations of our home galaxy with those of nearby galaxies we can see in their entirety.