Posts by 

Don Machholz

Does the North Star ever move?

The North Star is a symbol for constancy. But, if you took its picture, you'd find that it makes its own little circle around the sky's north pole every day.

Big and Little Dippers on June evenings

How can you see both the Big and Little Dippers? On June evenings, the Big Dipper is high in the north. Let it be your guide to the Little Dipper.

Circumpolar stars never rise or set

Circumpolar stars stay above the horizon all hours of the day, every day and every night of the year. In the north, they circle around Polaris in Ursa Minor.

Draco the Dragon, and a former pole star

Let your eyes and imagination drift to see the winding shape of Draco the Dragon. And meet Thuban, a former pole star, between the Big and Little Dippers.

Which moon phase is best for stargazing?

Which moon phase is best for stargazing? Most astronomers would tell you that the best moon is no moon. But it depends on what you want to see.

Tau Herculid meteors: Best images and video

Best images and video from this week's much-anticipated (and not disappointing) Tau Herculid meteor shower.

Deneb: How astronomers know how far away it is

The star Deneb - part of the Summer Triangle - is one of the most distant stars you can see with your eye alone. Why don't we know its distance precisely?

Polaris is the North Star

Many people think Polaris is the brightest star, but it's only 50th in brightness. Still, Polaris is famous because the entire northern sky wheels around it.

Comet Halley, parent of 2 meteor showers

The famous comet Halley spawns both the May Eta Aquariid meteor shower and the October Orionid meteor shower.

Arcturus, brightest star of the north

Arcturus is the brightest star north of the celestial equator. Near the handle of the Big Dipper, it's easy to find in spring in the Northern Hemisphere.