NGC 3259
| Galaxie NGC 3259 | |
|---|---|
 | |
| NGC 3259, aufgenommen mit dem Hubble-Weltraumteleskop | |
| AladinLite | |
| Sternbild | Großer Bär |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 10h 32m 34,8s[1] |
| Deklination | +65° 02′ 28″[1] |
| Erscheinungsbild | |
| Morphologischer Typ | SAB(rs)bc: / BLAGN[1] |
| Helligkeit (visuell) | 12,2 mag[2] |
| Helligkeit (B-Band) | 13,0 mag[2] |
| Winkelausdehnung | 1,7′ × 0,9′[2] |
| Positionswinkel | 20°[2] |
| Flächenhelligkeit | 12,5 mag/arcmin²[2] |
| Physikalische Daten | |
| Rotverschiebung | 0,005594 ± 0,000007[1] |
| Radialgeschwindigkeit | (1677 ± 2) km/s[1] |
| Hubbledistanz H0 = 73 km/(s • Mpc) | (79 ± 6) · 106 Lj (24,3 ± 1,7) Mpc [1] |
| Durchmesser | 85.000 Lj[3] |
| Geschichte | |
| Entdeckung | Wilhelm Herschel |
| Entdeckungsdatum | 3. April 1791 |
| Katalogbezeichnungen | |
| NGC 3259 • UGC 5717 • PGC 31145 • CGCG 313-21 • MCG +11-13-027 • IRAS 10291+6517 • 2MASX J10323481+6502277 • GC 2117 • H II 870 • h 715 • SDSS J103234.86+650227.9 • HIJASS J1032+65 • RX J103234+65024 | |
NGC 3259 ist eine Balken-Spiralgalaxie vom Hubble-Typ SBbc im Sternbild Großer Bär am Nordsternhimmel, die schätzungsweise 79 Millionen Lichtjahre von der Milchstraße entfernt ist.
Das Objekt wurde am 3. April 1791 von Wilhelm Herschel entdeckt.[4]
Weblinks
- astronews.com: Bild des Tages 9. Januar 2012
- CDS Portal
- Hubble spots a busy barred spiral (engl.)
- SIMBAD Astronomical Database
Einzelnachweise
Auf dieser Seite verwendete Medien
This classic shot of a galaxy in the constellation of Ursa Major was taken by the NASA/ESA Hubble Space Telescope. NGC 3259 is a bright barred spiral galaxy located approximately 110 million light-years from Earth.
Being a fully-formed active galaxy, its bright central bulge hosts a supermassive black hole, whose huge appetite for matter explains the high luminosity of the galaxy’s core: as it devours its surroundings, the black hole emits intense radiation across the whole electromagnetic spectrum, including in visible light.
The beautiful spiral arms of the galaxy are not left out either as they contain dark lanes of dust and gas, ideal spawning grounds for stars. These bright, young, hot stars appear in rich clusters in the galaxy’s arms and are what gives the galaxy its blueish hue.
Interestingly, the galaxy has a small companion (visible to the left of the image), a much smaller galaxy named LEDA 213712 that may be orbiting NGC 3259. In the background, numerous distant galaxies can be seen, easily identifiable by their elliptical shapes. They are visible here mainly in infrared light, which is shown in red in this image.
| About the object | |
|---|---|
| Object name | NGC 3259 |
| Object description | Barred spiral galaxy |
| Position (J2000) | 10 32 34.816 +65 02 27.79 |
| Constellation | Ursa Major |
| Distance | 110 million light-years (33.7 million parsecs) |
| About the data | |
| Data description | |
| Instrument | ACS |
| Exposure date(s) | |
| Exposure time | |
| Filters | F435W (B) and F814W (I) |