Notable stars, constellations, and deep-sky objects with one identifying fact each, for hobbyist stargazers.
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- What is the brightest star in Earth's night sky?
- Sirius, in the constellation Canis Major
- Which constellation contains the star Betelgeuse, a red supergiant?
- Orion
- What type of star is Betelgeuse?
- A red supergiant nearing the end of its life
- Which star marks the North Celestial Pole and is used for navigation?
- Polaris, the North Star
- Name the bright blue star that marks Orion's heel
- Rigel
- What is the most prominent star in Ursa Major?
- Alkaid (or Benetnash), at the tip of the Big Dipper's handle
- The Andromeda Galaxy is how far from Earth?
- About 2.5 million light-years
- What is the Orion Nebula?
- A stellar nursery where new stars are actively forming
- Which deep-sky object is also known as Messier 1?
- The Crab Nebula
- Name the star system closest to the Sun (excluding the Sun itself)
- Alpha Centauri, about 4.37 light-years away
- What is Vega, and in which constellation does it lie?
- A bright white star in the constellation Lyra
- The Ring Nebula is located in which constellation?
- Lyra
- What type of nebula is the Ring Nebula?
- A planetary nebula, the ejected envelope of a dying star
- Which constellation is home to the brightest star Deneb?
- Cygnus, the Swan
- What is the Summer Triangle asterism?
- Three bright stars: Vega (Lyra), Altair (Aquila), and Deneb (Cygnus)