What’s Up Tonight?
- Star-hop to Coma star clusterIt's an open star cluster, whose stars were born together from a single cloud of gas and dust and are still loosely bound by gravity. Long ago, the Coma star cluster represented the Lion's tufted tail.
- Kochab and Pherkad in Little DipperKochab and Pherkad are the two outer stars in the bowl of the Little Dipper.
- Moon and Venus before Sunday’s sunriseBefore sunrise on April 23, 2017, you'll find a beautiful pairing of the waning crescent moon and dazzling planet Venus in your eastern sky.
- Before dawn, Lyrid meteors and Venus!Assuming your sky is clear, you'll love seeing the moon and Venus before dawn April 22. Plus you might catch 10 to 20 meteors per hour in 2017's Lyrid meteor shower.
- Find Vega, near Lyrid meteor radiant pointFinally! A meteor shower when the moon is (relatively) dark. Watch the mornings of April 21-23. We expect the peak morning to be April 22 for the Lyrids in 2017.
- Big Dipper to Polaris and Little DipperThe star Polaris - aka the North Star - marks the end of the Little Dipper’s handle. The two outer stars in the bowl of the Big Dipper always point to Polaris.
- Last quarter moon rises around midnightYou might spot the moon after sunrise on April 18 or 19, high in the sky. Did you know a last quarter moon is slightly fainter than a first quarter moon? Learn why here.
- Mars near Pleiades cluster at nightfallMars and the Pleiades star cluster will fit (or nearly fit) in the same binocular field all this week. They'll come closest together on the sky’s dome on or near April 22.
- Jupiter and Spica to Omega CentauriOmega Centauri is the largest and finest star cluster visible to the eye alone from the Northern Hemisphere. Binoculars or a telescope show even more. A dark sky is best!
- Sundial and clock agree in middle AprilEvery year in mid-April, clock time and sun time agree. That means that, when the midday sun climbs highest, the sundial reads 12 noon and your local clock says 12 noon.
What’s Up This Month?
Several times a year meteor showers light up the sky. Find out everything you need to know about these celestial fireworks, including the yearly dates of important meteor showers, and when and where to view them from, in this handy guide.
Discover the 88 Star Constellations
Discover the 88 Star Constellations of the Nightsky, the pictures in the sky. Learn about the stars and other amazing objects that can be found within the 88 known constellations we can see from Earth.
- Constellations by Alphabetic Listing, by Season and by Month
- The 88 Star Constellations of the Nightsky
NASA collection of sound effects from both this world and deep intergalactic space, available for all of us to enjoy