Stars in the Sky Tonight
The stars in tonight’s sky form many familiar patterns that make their host constellations easy to identify. In the northern hemisphere, the stars of the… Read More »Stars in the Sky Tonight
Thuban (Alpha Draconis): The Dragon’s Forgotten North Star
Thuban, Alpha Draconis (α Dra), is a spectroscopic binary star system located in the constellation Draco. Even though it has the Bayer designation Alpha, it… Read More »Thuban (Alpha Draconis): The Dragon’s Forgotten North Star
Zeta Cygni (Tianjinnan): The Swan’s Hidden Barium Star
Zeta Cygni (ζ Cyg) is a relatively bright binary star located in the region of the Swan’s wing in the constellation Cygnus. Formally named Tianjinnan,… Read More »Zeta Cygni (Tianjinnan): The Swan’s Hidden Barium Star
Peony Star (WR 102ka): Slash Star Near the Milky Way’s Core
The Peony Star (WR 102ka) is a slash star located approximately 26,000 light-years away in the constellation Sagittarius. It lies in the region of the… Read More »Peony Star (WR 102ka): Slash Star Near the Milky Way’s Core
Sarin (Delta Herculis): Left Shoulder of Hercules
Sarin, Delta Herculis (δ Her), is a spectroscopic binary star system located 75.1 light-years away in the constellation Hercules. It shines at magnitude 3.126 and… Read More »Sarin (Delta Herculis): Left Shoulder of Hercules
Pi Herculis (Nüchuang): A Luminous Orange Giant in Hercules
Nüchuang, Pi Herculis (π Her), is an orange bright giant star located 367 light years away in the constellation Hercules. With an apparent magnitude of… Read More »Pi Herculis (Nüchuang): A Luminous Orange Giant in Hercules
Zeta Herculis (Tianji): The Brightest Light in the Keystone
Tianji, Zeta Herculis (ζ Her), is a spectroscopic binary star located 35 light-years away in the constellation Hercules. With an apparent magnitude of 2.81, it… Read More »Zeta Herculis (Tianji): The Brightest Light in the Keystone