Astrophotography From Upper Pottsgrove Pennsylvania
Sirius is the brightest star in the night sky. Its name is derived from the Greek word Σείριος (Latin script: Seirios), meaning lit. ‘glowing’ or ‘scorching’. The star is designated α Canis Majoris, Latinized to Alpha Canis Majoris, and abbreviated α CMa or Alpha CMa. With a visual apparent magnitude of −1.46, Sirius is almost … Read More “Sirius” »
NGC 2903 is an isolated barred spiral galaxy in the equatorial constellation of Leo, positioned about 1.5° due south of Lambda Leonis. This field galaxy is located about 30 million light-years away from the Milky Way, and is a member of the Virgo Supercluster. On March 18, 2025 I set up my Celestron 9.25 telescope … Read More “NGC 2903” »
NGC 3718 is a small but beautiful galaxy in the constellation Ursa Major. It is not far from other deep sky objects that are much easier to image. On March 14, 2025 I set up my Celestron 9.25 telescope on my CGEM II mount with no particular goal. It was a full moon and the … Read More “NGC3718 & NGC3729” »
I left both my scopes out on March 4, 2025 because March 5th was also going to be a clear night. With a temperature of 18 degrees Fahrenheit was pretty cold. On the 5th, I went out to make sure I was still polar aligned. When I turned the scope on, the hand controller stated … Read More “CGEM II Error 17?” »
NGC 2287 (M41) cluster covers an area about the size of the full moon. It contains about 100 stars, including several red giants the brightest of which has spectral type K3, apparent magnitude 6.3 and is near the center, and some white dwarfs. The cluster is estimated to be moving away from us at 23.3 … Read More “M41 – Little Beehive Cluster” »
