galacticsights

astrophotography

M44, Beehive Cluster

2022-02-28 / Click on image to enlarge


"One of the closest star clusters to our sun."

A mere 600 light-years away, M44 is one of the closest star clusters to our solar system. Also known as the Praesepe or the Beehive cluster its stars are young though, about 600 million years old compared to our Sun's 4.5 billion years. Based on similar ages and motion through space, M44 and the even closer Hyades star cluster in Taurus are thought to have been born together in the same large molecular cloud. An open cluster spanning some 15 light-years, M44 holds 1,000 stars or so and covers about 3 full moons (1.5 degrees) on the sky in the constellation Cancer. Visible to the unaided eye, M44 has been recognized since antiquity. Described as a faint cloud or celestial mist long before being included as the 44th entry in Charles Messier's 18th century catalog, the cluster was not resolved into its individual stars until telescopes were available. (Text by NASA Science)

Technical Details

LocationZollikerberg, Switzerland
CameraNikon DSLR D810A
TelescopeTS ONTC 12" f/4 Carbon Newton
OpticsSkywatcher Newtonian F4 Coma Corrector
Focal Length1219mm
MountiOptron CEM120 Center-Balanced Equatorial Mount
AutoguidingMGEN-3 (Dithering)
FocuserMoonlite
Planetarium SoftwareStellarium
Image Session ControlAPT - Astro Photography Tool v3.88, ASCOM Platform 6
Lights60 x 120s (total 2h00'), ISO-1600, additional Biases, Flats, no Darks
Stacking SoftwarePixinsight 1.8
Image ProcessingPixinsight 1.8