Questa è una cornice della vasta Nebulosa delle Gum nella via Lattea meridionale, che si estende sulle costellazioni di Vela e Puppis. È elencato come oggetto #1
6690 x 4480 px | 56,6 x 37,9 cm | 22,3 x 14,9 inches | 300dpi
Data acquisizione:
5 marzo 2024
Altre informazioni:
This is a framing of the vast Gum Nebula in the southern Milky Way, that sprawls over the constellations of Vela and Puppis. It is listed as object #12 in the catalog of southern nebulas compiled in the 1950s by Australian astronomer Colin Gum. It is perhaps a supernova remnant (not to be confused with the smaller Vela Supernova Remnant that is within the Gum Nebula) or is a large and old H-Alpha star-forming region. It is nearby in the Milky Way, at about 1500 light years from us. Smaller components of it carry other catalogue numbers such as Gum 15 and Gum 17. At lower left is the Large Magellanic Cloud, a satellite galaxy to the Milky Way that is about 160, 000 light years away. The LMC is marked by the bright Tarantula Nebula, NGC 2070, and other pink H-Alpha regions. At top left is the rich region of the Carina Nebula, here somewhat lost amid the bright starclouds in that area of the Milky Way. Just left of centre are the stars of the False Cross from Carina and Vela, with the large naked-eye star cluster NGC 2516 below the Cross. The bright star at bottom is Canopus in Carina. Technical: This is a stack of 12 x 5 minutes at ISO 1600 and f/2 with the Astronomik 12nm H-alpha clip-in filter, blended onto the base unfiltered images from a stack of 14 x 3 minutes at f/2.8, all with the Canon RF28-70mm lens at 28mm on the red-sensitive Canon Ra camera, and on the MSM Nomad tracker. I blended in the monochrome H-Alpha stack using a Lighten blend mode and BlendIf adjustment, colourizing it with a Hue/Saturation clipped adjustment layer with settings: Hue = 342, Saturation = 40, and Lightness = -30 for a more natural pinker colouration and not a deep red. I took this in March 2024 on an astrophoto excursion to Australia, shot from the Mirrabook Cottage near Coonabarabran, NSW.
