Zeta Persei (ζ Persei) is a multiple-star system in the constellation Perseus. Backyard astronomers can enjoy this tight pair of stars on autumn and winter nights. The supergiant, hot star burns 47,000 time that of our sun and is huge at 26 times the size of our sun! It will eventually meets its fate exploding as a supernova.
NGC 869 and 884: The Famous Sparkling Double Cluster
NGC 869 along with NGC 884 create a breathtaking cluster of stars floating in the constellation of Perseus. Like diamonds sparkling in a dark room, the Double Cluster lights up the autumn sky as it spreads itself as wide as new full moons.
Palomar Observatory
Learn about the Palomar Observatory and the Hale Telescope. Article includes original photos and video from a personal visit in 2018.
NGC 7160: An Alligator Swims through Cepheus
NGC 7160 is a small, yet bright open cluster in the constellation Cepheus. With a magnitude of 6, backyard astronomers can view it with binoculars, though a telescope will be better.
NGC 7281: Open Star Cluster with a Belt in Cepheus
NGC 7281, an open cluster in Cepheus, shines on autumn nights. Look for its 20+ stars, including three bright ones forming a helpful line for observers.
NGC 7039: A Cluster in Cygnus’ Sea of Stars
NGC 7039 is an open cluster with close to 100 stars in Cygnus, making it a good target for backyard astronomers in the northern hemisphere in summer.
HD 189751 (SAO 69238): A Double Among a Colorful Stream in Cygnus
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.
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.
The Garden Astronomer 