Among the 88 official constellations, Cassiopeia ranks as the 25th largest and 30th brightest. It contains four stars (Alpha [α], Beta [β], Gamma [γ], and Delta [δ] Cassiopeiae) that are among ...

If you were among the countless numbers of people who spent time last week looking for Perseid meteors, you doubt took notice of a striking stellar arrangement in the northeastern part of the sky ...

The constellations help us find our way around the sky, breaking up the endless array of stars into more manageable and memorable chunks. In this article, I'll discuss five constellations I always ...

Here’s when you’ll see the next full moon, comets constellations and more. Venus will shine its brightest in February. Stars get a lot of attention for shining bright, but planets shine, too.

The “W” of Cassiopeia: An easy-to-spot letter “W” within the constellation Cassiopeia. The Winter Triangle: A popular asterism formed by the bright stars Sirius, ...

I don’t write a lot of columns about Cassiopeia. Now that I sit here and begin to type my column, I’m wondering why that is. One reason might be that it’s difficult to spell first time ...

On March 18, Japanese amateur astronomer Yuji Nakamura spotted something odd while observing Cassiopeia, a familiar constellation in the northern sky. It appeared that the constellation had a new ...

Part of a rich field of nebulae and clusters in the northern constellation Cassiopeia, Sharpless 2–157 (at bottom) is sometimes called the Lobster Claw Nebula. The better-known Bubble Nebula ...

NASA's James Webb Space Telescope has revealed new details in a supernova remnant created by a massive exploding star 11,000 light-years away in the constellation Cassiopeia.

Cassiopeia circles in the north opposite to the Big Dipper, and so near to the pole that, like the Dipper, she too, never goes below the horizons of mid-northern latitudes. The Double Cluster ...

The Cassiopeia constellation is surrounded by celestial treasures. ... as the dense cores of the cluster thin out slowly to merge finally in the star-rich background of the galaxy itself.