Up Deepspace-2 Prev Next Slideshow

 Imagen anterior  Imagen siguiente  Página índice  Imagen original [NGC 4151 (Eye of Sauron),NGC 4156 (Canes Venatici).jpg - 2.0MB]
LDN 1188,DG180 (LBN 496),PGC 97260 (Cepheus)
NGC 654,VdB6,LDN 1332,1334,1337 (Cassiopeia)
DG 181,DG 182, LDN 1175,LDN 1184 (Cepheus)
Barnard 3 (Perseus)
NGC 3344 (Leo Minor)
  NGC 4151 (Eye of Sauron),NGC 4156 (Canes Venatici).jpg - NGC 4151 (Eye of Sauron),NGC 4156 (Canes Venatici) * March-April 2015 * ASA N12 astrograph (f/3,6, 1078mm) * ASA DDM85 mount * FLI ML8300 at -25ºC * LRGB Optec filter set * L:582m  R: 180m G:170m B:190m * UNGUIDED * NGC 4151 is an intermediate spiral Seyfert galaxy located 43 million light-years from Earth, in the constellation Canes Venatici. The galaxy was first mentioned by William Herschel on March 17, 1787; it was one of the two Seyfert galaxies described in the paper which defined the term. It is one of the nearest galaxies to Earth to contain an actively growing supermassive black hole; it was speculated that the nucleus may host a binary black hole, with about 40 million and about 10 million solar masses respectively, orbiting with a 15.8-year period. This is, however, still a matter of active debate.Some astronomers nickname it the "Eye of Sauron" from its appearance.X-ray sourceAstronomers using data from the European Space Agency’s XMM-Newton satellite have found a long-sought X-ray signal from NGC 4151. When the black hole’s X-ray source flares, its accretion disk reflects the emission about half an hour later.A litte tidal tail can be seen at the bottom of the galaxy...and also in the spiral galaxy NGC 4156..(Credits: NASA&Wikipedia)  
NGC 5934,5935,5943,5945,5947 (Bootes)
LDN 810,SH2-92,Reflection nebula GN 19.43.3.01, YSO CB205YC1 (Vulpecula-Cygnus)
vdB 136,LBN 312 (Cygnus)
LBN 331,DWB 177,DWB 178,DWB 179, V1488 Cyg (Cygnus)
LBN 248, HH425 (Cygnus)

NGC 4151 (Eye of Sauron),NGC 4156 (Canes Venatici) * March-April 2015 * ASA N12 astrograph (f/3,6, 1078mm) * ASA DDM85 mount * FLI ML8300 at -25ºC * LRGB Optec filter set * L:582m R: 180m G:170m B:190m * UNGUIDED * NGC 4151 is an intermediate spiral Seyfert galaxy located 43 million light-years from Earth, in the constellation Canes Venatici. The galaxy was first mentioned by William Herschel on March 17, 1787; it was one of the two Seyfert galaxies described in the paper which defined the term. It is one of the nearest galaxies to Earth to contain an actively growing supermassive black hole; it was speculated that the nucleus may host a binary black hole, with about 40 million and about 10 million solar masses respectively, orbiting with a 15.8-year period. This is, however, still a matter of active debate. Some astronomers nickname it the "Eye of Sauron" from its appearance. X-ray source Astronomers using data from the European Space Agency’s XMM-Newton satellite have found a long-sought X-ray signal from NGC 4151. When the black hole’s X-ray source flares, its accretion disk reflects the emission about half an hour later. A litte tidal tail can be seen at the bottom of the galaxy...and also in the spiral galaxy NGC 4156.. (Credits: NASA&Wikipedia) Download Imagen original
Imágenes totales: 68 | Ayuda