Achernar marks the end of the River

The bright, southerly star Achernar marks the end of the River in the constellation Eridanus. Many at northerly latitudes make a game of trying to catch a glimpse of it.

How to find Delta Aquariid radiant point

How to spot the radiant point for the Delta Aquariid meteor shower, going on now. Plus ... why meteors in annual showers have radiant points.

Moon in Taurus on January 22, 23 and 24

The bright waxing gibbous moon shines in front of the constellation Taurus the Bull on January 22, 23 and 24, 2021. Here's how to look for the famous Pleiades star cluster and Taurus' brightest star, Aldebaran. The moon will pass between them on these nights.

Geminid meteors best on December 13-14

The shower is best around 2 a.m., but watch from late evening until dawn. The best morning is likely December 14, 2020.

Find the Geminids’ radiant point

Why is the Geminid meteor shower best around 2 a.m.? It's because that's when the shower's radiant point - near the bright star Castor in the constellation Gemini - is highest in the sky.

See a celestial Chariot in December

The constellation Auriga the Charioteer also has several easy-to-find and very famous star clusters that you can spot with binoculars.

Cassiopeia, Queen of the north

Cassiopeia - sometimes called The Lady of the Chair - is famous for having the shape of a telltale W or M.

When is my earliest sunset?

For the southernmost US and similar latitudes, the earliest sunsets of the year are happening now. Your earliest sunset depends on your latitude, but always comes before the winter solstice.

How to watch Taurid meteors in 2020

Although a modest shower, perhaps offering 5 meteors per hour, the Taurid shower lasts over a month and is known for producing dramatic fireballs, or exceptionally bright meteors.

Blue Moon and red Mars on Halloween

The full moon of October 31, 2020 is the second full moon of a calendar month and therefore carries the name Blue Moon. It's also the smallest full moon of 2020. And it's near red Mars! Watch for it.