Dopo aver presentato l’anno scorso la prima parte della nebulosa, (NGC6960 ), oggi pubblico la seconda parte ovvero la sezione orientale della nebulosa.
Dopodiché mi mancherà solo la parte centrale detto anche Triangolo di Pickering.
dati di scatto:
newton 12″ f4
Explanation: Wisps like this are all that remain visible of a Milky Way star. About 7,500 years ago that star exploded in a supernova leaving the Veil Nebula, also known as the Cygnus Loop. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to people living at the dawn of recorded history. Today, the resulting supernova remnant has faded and is now visible only through a small telescopedirected toward the constellation of the Swan (Cygnus). The remaining Veil Nebula is physically huge, however, and even though it lies about 1,400 light-years distant, it covers over five times the size of the full Moon.
[Text adapted from Apod Nasa]