Questo è Messier 1, la prima voce del catalogo di oggetti del XVIII secolo di Charles Messier che non dovevano essere scambiati per comete, il suo vero q
11473 x 7615 px | 97,1 x 64,5 cm | 38,2 x 25,4 inches | 300dpi
Data acquisizione:
1 gennaio 2024
Altre informazioni:
This is Messier 1, the first entry in Charles Messier's 18th century catalogue of deep-sky objects that were not to be mistaken for comets, his real quest. It is also NGC 1952, or the Crab Nebula, from the Earl of Rosse's 19th century description and naming. It is north of the lower horn of Taurus the Bull. This is a remnant cloud of debris expanding away from a supernova explosion that was witnessed in 1054 CE. All that's left of the progeniitor star now is a neutron star forming a spinning pulsar at the heart of the explosion debris. Some red H-alpha tendrils are obvious around the extremity of the otherwise bluish nebula glowing from synchrontron radiation created by the pulsar. This is a stack of 24 x 6-minute exposures with the Askar APO120 refractor at f/7 with its 1x Flattener, and with the filter-modified Canon R camera at ISO 800. However, no filter was employed here. Autoguided and inter-frame dithered with the Lacerta MGEN3 stand-alone autoguider on the AP Mach 1 mount, Jan 1, 2024. Some high haze drifted through for part of the sequence. The frame was upsized in resolution and cropped from the original.
