Messier 93 or M93, also known as NGC 2447, is an open star cluster in the southern constellation Puppis.
It was discovered by Charles Messier then added to his catalogue of comet-like objects in 1781.
Caroline Herschel, the younger sister of William Herschel, independently discovered it in 1783,
thinking it had not yet been catalogued by Messier. M93 shines at Magnitude 6.2 is about 3,380 light years away,
and the cluster spans 20 light years across.
It is a brighter star cluster & easily visible in binoculars or a small telescope.
An Interesting find…
While doing some research on M93, my Jaw dropped when I read that
54 variable stars have been found in M93, including one slowly pulsating B-type star, one rotating ellipsoidal variable,
seven Delta Scuti variables, six Gamma Doradus variables, and one hybrid δ Sct/γ Dor pulsator.
Four spectroscopic binary systems within include a yellow straggler component.
Captured with an Explore Scientific 102mm Triplet APO Refractor Telescope, Bisque ME Robotic tracking Mount,
QHY183C Cooled Color Cmos Camera, and a 30 minute exposure on 01-10-2021 from my observatories at JBSPO in Yellow Springs, Ohio.