Spiral pattern in Virgo dwarf galaxy
The deep R-band CCD image of IC3328 (left; rendered in "negative" with dark objects and a bright background), obtained with FORS1 at VLT ANTU, illustrates the overall morphology of this galaxy that was classified as a dwarf elliptical galaxy: a quite smooth radially waning light distribution with a central nucleus. The total integration time of this composite image is 20 min with a seeing of 0.6 arcsec. After removal of the axis-symmetrical part of the light from the galaxy by a special image processing algorithm, the "residual" image reveals a remarkable 2-armed spiral structure (right). The field is 4 x 4 arcmin 2 ; North is up and east is left.
Źródło:ESO
O zdjęciu
Identyfikator: | eso0018a |
Typ: | Obserwacje |
Data publikacji: | 3 maja 2000 |
Powiązane komunikaty: | eso0018 |
Rozmiar: | 761 x 371 px |
O obiekcie
Nazwa: | IC 3328 |
Typ: | Local Universe : Galaxy : Size : Dwarf Local Universe : Galaxy : Type : Elliptical |
Odległość: | 55 milion lat świetlnych |
Kategoria: | Galaxies |
Kolory i filtry
Pasmo | Teleskop |
---|---|
Optyczny R | Very Large Telescope FORS1 |