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This photo of the Milky Way was taken in Scunthorpe at about 1AM in August. It was 1 x 30 second shot at ISO 3200.
The Great Cluster in the constellation Hercules – also known as Messier 13, or M13 – is considered to be the finest globular cluster in the northern half of the heavens. It’s found in a star pattern called the Keystone – a lopsided square within the constellation Hercules – between the two brightest stars of northern spring and summer, Vega and Arcturus.
This image is a combination of 30 x 180 seconds, 1 x 1 binning -25 deg. captured in Maxim DL, calibrated in Nebulosity V2.5 and processed in Photoshop CS5…….Takahashi Epsilon Astrograph and QHY10 CCD
The star cluster M3 is between Arcturus Bootes (α Bootis) and double stars, the brightest of hunting dogs (Cor Caroli). The apparent magnitude of the cluster M3 is 6.3, just above the limit of visibility with the naked eye. In binoculars you will see a whitish spot and diffuse. If most of the cluster stars are older than 10 billion years, a large number of stars are blue, so young, a few hundred million years.
The object was discovered by Charles Messier in 1764 but William Herschel who around 1784 realized it was a cluster of stars. M3 contains a considerable number of stars, about half a million, most stars are old and red.
Light takes about 35,000 years to reach us from M3, which spans about 150 light-years.
This image is a composite of 30 x 120 seconds and 30 x 30 seconds processed in Photoshop CS5.
Takahashi Astrograph and QHY10 CCD......Lights, Darks, Flats, and Bias frames calibrated in Nebulosity V2.5