SUNSET: 
R and T Coronae Borealis: Two Stellar Opposites
One is usually bright but fades unexpectedly; one is almost always faint but brightens unexpectedly. Check them out with binoculars.
Delta Scorpii Still Showing Off
For the fourth summer in a row, the head of the bright constellation Scorpius looks a little unusual.
X Sagittarii: A Variable Star Toward Our Galaxy's Heart
This naked-eye variable should be near peak brightness every Wednes-day night during August, September, and October.
Chi Cygni Rises Toward Maximum
Catch a orange-red variable star in Cygnus, the Swan, as its brightness peaks in early July.
The Variable Star T Cephei
The long-period variable star T Cephei peaks this October. The star is relatively easy to locate in binoculars because of its red hue.
An 11th-Magnitude Supernova
An unusually bright supernova has gone off in NGC 2403, an 8.5-magnitude galaxy in the constellation Camelopardalis, the Giraffe.
A Star Prepares to Blow Its Top
Easily found with the naked eye, 4th-magnitude Rho Cassiopeiae may be getting ready for an enormous mass ejection in the next few months.
Chi Cygni to Brighten in Early March
The long-period variable Chi Cygni peaks in March. Here's where to find it and what to expect.
