NGC 1097
| NGC 1097 | |
 | |
| Observationsdata | |
|---|---|
| Stjärnbild | Ugnen |
| Rektascension | 02t 46m 19.0s[1] |
| Deklination | -30° 16′ 30″[1] |
| Rödförskjutning | 1271 ± 3 km/s [1] km/s |
| Avstånd | 45 miljoner [2] ljusår |
| Typ | (R'_1:)SB(r'l)bSy1 [1] |
| Skenbar storlek | 9′.3 × 6′.3 [1] |
| Skenbar magnitud | 10.2 [1] |
| Upptäckt | |
| Upptäcktsår | 9 oktober 1790 |
| Upptäckare | William Herschel |
| Andra beteckningar | |
| ESO 416- G 20, PGC 10488,[1] Arp 77[1] Caldwell 67[3], MCG -05-07-024, IRAS 02441-3029, 2MASX J02461905-3016296, SGC 024411-3028.9, GC 610, H 5.48, h 2495, AM 0244-302, HIPASS J0246-30 | |
| Se även: Galaxer, Lista över galaxer | |
NGC 1097 eller Caldwell 67 är en spiralgalax som man enkelt kan se i ett litet teleskop. Den ligger ungefär 4 grader norr om NGC 1049. Den har skenbar magnitud 10,2 och ett mycket ljust centrum. Dess långsträckta form bör synas i ett 100 mm teleskop eller större.
Referenser
- ^ [a b c d e f g h] ”NASA/IPAC Extragalactic Database”. Results for NGC 1097. http://nedwww.ipac.caltech.edu/. Läst 25 november 2006.
- ^ ”Feeding the Monster: New VLT Images Reveal the Surroundings of a Super-massive Black Hole”. Europeiska sydobservatoriet. Arkiverad från originalet den 4 mars 2008. https://web.archive.org/web/20080304135504/http://www.eso.org/public/outreach/press-rel/pr-2005/phot-33-05.html. Läst 15 mars 2008.
- ^ O'Meara, Stephen James (2002). The Caldwell Objects. Cambridge University Press. ISBN 0-521-82796-5
Media som används på denna webbplats
NASA's Spitzer Space Telescope has imaged a wild creature of the dark — a coiled galaxy with an eye-like object at its center.The 'eye' at the center of the galaxy is actually a monstrous black hole surrounded by a ring of stars. In this color-coded infrared view from Spitzer, the area around the invisible black hole is blue and the ring of stars, white.
The galaxy, called NGC 1097 and located 50 million light-years away, is spiral-shaped like our Milky Way, with long, spindly arms of stars.
The black hole is huge, about 100 million times the mass of our sun, and is feeding off gas and dust, along with the occasional unlucky star. Our Milky Way's central black hole is tame in comparison, with a mass of a few million suns.
The ring around the black hole is bursting with new star formation. An inflow of material toward the central bar of the galaxy is causing the ring to light up with new stars. And, the galaxy's red spiral arms and the swirling spokes seen between the arms show dust heated by newborn stars. Older populations of stars scattered through the galaxy are blue. The fuzzy blue dot to the left, which appears to fit snugly between the arms, is a companion galaxy. Other dots in the picture are either nearby stars in our galaxy, or distant galaxies.
This image was taken during Spitzer's cold mission, before it ran out of liquid coolant. The observatory's warm mission is ongoing, with two infrared channels operating at about 30 degrees Kelvin (-406 degrees Fahrenheit).
The colors blue, green, and red respectively indicate infrared light of wavelengths 3.6, 4.5, and 8.0 μm (micrometers). The "blue" light has also been subtracted from the "red" in order to enhance the visibility of the dust features.