Great news for all astronomers: a new star is discovered. The so-called Nova Delphinus 2013 was discovered August 14, 2013 by amateur astronomer Koichi Itagaki of Yamagata, Japan, at 2 p.m. EDT (1800 GMT) in the constellation Delphinus, the Dolphin.
The name “Nova” means that this is a powerful eruption from star, but is not as strong as a supernova, which is a catastrophic explosion signaling the death of a star. So what is visible as a nova originates from the surface of a white dwarf star in a binary system. If these two stars are close enough, material from one star can be pulled off the companion star’s surface and onto the white dwarf, producing an extremely bright outburst of light. When the outburst has subsided, the white dwarf usually reverts back to its original state. This might be the case for this nova discovered in Delphinus.
Novas like this one don’t appear very often, perhaps once or twice per decade. During the last 50 years, the brightest nova that has appeared occurred in August 1975, when a nova suddenly blazed in the constellation of Cygnus, the Swan.
The good news is that this nova is bright enough to be visible with the naked eye from a dark place. It is a very easy object with a small pair of binoculars or a small telescope. This is its position: Nova Delphinus 2013 is located within the boundaries of the small constellation of Delphinus, the Dolphin, which is immediately adjacent to the famous Summer Triangle composed of the bright stars Vega, Altair and Deneb.