Simple telescope formulas — how to calculate what you need to know about your telescopes, oculars, and binoculars.
As twilight fades, look low in the southwest for Saturn and Mercury.
Pisces, that sprawling constellation of faint stars easy to ignore, holds a treasure trove of double stars for small telescopes.
Vega is the brightest star in the west in early evening. Its little constellation Lyra extends to the left. Somewhat farther left is 3rd-magnitude Albireo, the beak of Cygnus.
Venus bids farewell at dawn, but not before a close encounter with returning Jupiter.
By watching a star’s disappearance, astronomers learned about the state of the ultrathin atmosphere of Triton, Neptune's largest moon.
The full Moon of November always rides very high in the middle of the night, almost as high as the full Moon of December.
Just discovered, Comet Heinze (C/2017 T) will zoom by Earth in January and may just show up in your binoculars.
The Moon occults two 1st-magnitude stars for much of North America just six days apart. The first event happens mostly in early-evening darkness, the second in broad daylight — an extra challenge for the adventurous.
As you'll hear in this month's astronomy podcast, Venus and Jupiter are putting on quite a show low in the east before dawn.
Saturn, in southern Ophiuchus, glows low in the southwest at dusk this week. It's the only bright planet in evening view.
Feeling tired, run down? These fuzzy stars are guaranteed to pique your interest and make you feel young again.
Using binoculars, find these four clusters that will fit comfortably in the same field of view — observe part of the structure of the galaxy made visible.
The joys of observing variable stars are predictably wonderful. Learn about these inconstant stars which are consistently delightful.
Download the Celestial Harvest Showpiece Roster, a handy list of 300 of the best deep-sky objects to explore with telescopes from 2- to 14-inches in aperture.
Look northeast in the starry sky these evenings. Capella shines low and brightest. Upper right of Capella, and upper left of the Pleiades, the stars of Perseus stand astride the Milky Way.
See what cosmic dust can do! Head outside this weekend for the peak of the Orionid meteor shower and an eyeful of zodiacal light.
Want to become an amateur astronomer? First, learn your way around the constellations! They're the key to locating everything fainter and deeper to hunt with binoculars or a telescope.
An extraordinary encounter with the stars: the most peacefully (yet still stirringly) wondrous is the sight of a clear, dark sky filled with stars.
What's your pleasure when it comes to observing? Comets? Supernovae? Occultations? Get a sample of each and more in the upcoming week.
Some lunar impacts have characteristics that make them neither "simple" nor "complex." Think of them as the “young adults” of the Moon’s crater population.
R Aquarii may look like a normal pulsing red giant — but it has a lot more going on around it. Its next episode of weirdness may begin soon...
Want to become an amateur astronomer? Learn your way around the constellations! They're the key to locating everything fainter and deeper to hunt with binoculars or a telescope.
Be sure to set the alarm so you don't miss the squeaky-tight conjunction of Venus and Mars Thursday morning. They'll stay close through the weekend.
October's astronomy podcast helps you track down Saturn after sunset and offers a peek at what's in view before dawn.