HD 189751 is a variable and double star in the constellation Cygnus. The binary is also known as SAO 69238 and STT 394. It is a 7th magnitude star.
Tag Archives: Autumn
Sigma Cassiopeiae: The “Smalt” Blue Jewel
Sigma Cassiopeiae is a rewarding binary star to see in the constellation of Cassiopeia. Backyard astronomers will want to use higher power to separate the pair. This is a great double star to view on fall nights.
NGC 6830: An Older Cluster Brings New Discoveries
Vulpecula’s NGC 6830 is an older cluster with about 50 dim stars and is located around 5,300 light years away. Though many of its residents are dim, the cluster contains a few brighter stars making this a good target for backyard astronomers with a small to middle size telescope.
HD 919: A Red Variable Double Star in Cepheus
HD 919, also known as HIP 1124 or STTA 1, is a variable double star in the constellation Cepheus that warrants a look due to its pretty red color contrasted against a white secondary star.
Struve 2883: A Pretty Contrasting Binary Star Cepheus
HD 210884, also known as HIP 109474 or STF 2883, is a double star in the constellation Cepheus. It’s best viewed on autumn nights.
Messier 32 (NGC 221): Le Gentil—A Galaxy in our Universe Neighborhood
Messier 32 (M32, NGC 221), is a dwarf elliptical galaxy best viewed in the fall. It lies in the Andromeda constellation. The galaxy appears as a blotch of light from the light-polluted suburbs.
NGC 7331 (Caldwell 30): The Milky Way’s Twin
NGC 7331, also known as Caldwell 30, is a non-barred spiral galaxy in the constellation Pegasus, best viewed during autumn. One can make out the distant cousin as a smudge in smaller scopes.
NGC 7662: The Blue Snowball Nebula
NGC 7662, also known as the blue snowball nebula, is a bright planetary nebula in the andromeda constellation. It’s a good target for the casual backyard observer with a small telescope as it breaks through the light pollution pretty well for a nebula.
The Garden Astronomer 