Messier 67 (also known as M67 or NGC 2682) is an open cluster in the constellation of Cancer. M67’s Trumpler class is variously given as II 2 r, II 2 m, or II 3 r. It was discovered by Johann Gottfried Koehler in 1779. Age estimates for the cluster range between 3.2 and 5 billion years, with the most recent estimate (4 Gyr) implying stars in M67 are younger than the Sun. Distance estimates are likewise varied and typically range between 800–900 pc. Recent estimates of 855, 840, and 815 pc were established via binary star modelling and infrared color-magnitude diagram fitting, accordingly. (Source: Wikipedia)
Technical Details
Dates: 8/2/2018
Location: Cologne, Germany
Imaging Telescope: 8″ GSO f/4
Imaging Camera: Nikon D7000
Filter: Baader Planetarium UHC-S
Mount: Skywatcher EQ-6
Guiding Telescope: TSO 80mm
Guiding Camera: QHY 5L-II
Integration: 10 x 5 min. (ISO 1000)
Software: PixInsight, SofortBild, OpenPhDGuiding, INDI
Plate Solution
(Source: astrometry.net)