Dog-Star Observatory -- Deep-Sky Drawing Archive
M-46 (2437) open cluster in Puppis
NGC-2438 planetary nebula in Puppis
February 27, 1979
8" F6 Dob. (40x)
RIDC Park - O'Hara Twp., PA

M-46 is a large and bright open cluster with many stars
2438 is a superimposed planetary nebula - looked only like
faint ball here, but looked like ring in 13" at Allegheny>br> observatory

This page is maintained and made available for educational use by Dr. Gerry Santoro, gms@psu.edu