SUNSET: 
This Week’s Sky at a Glance, October 25 – November 2
The W of Cassiopeia now stands vertically on end in the evening, high in the northeast. Look to its right for Andromeda and the Great Square of Pegasus.
"Potentially Hazardous" Asteroid Is Headed For Your Telescope
A potentially hazardous asteroid makes a flyby of Earth this Friday, offering amateurs with modest telescopes a chance to ride along.
Crack Your Crescent Moon Record
Calling all crescent lovers! Here's a chance to set a new personal record by seeing one of the oldest moons ever.
This Week’s Sky at a Glance, October 18 – 26
Friday, Oct. 18 • Vega is the brightest star high in the west after dark. To its lower right by 14° (nearly a fist and a half at arm's length), look for Eltanin, the nose of Draco the Dragon. The rest of Draco's fainter, lozenge-shaped head is a little farther…
Autumn Comets, Mira's Eye & The Orionid Meteor Shower
Four comets, a famous variable star, and sprinkles of dust from Halley's Comet are highlights of the October sky.
This Week’s Sky at a Glance, October 11 – 19
Friday, Oct. 11 • Soon after dark, you'll find zero-magnitude Arcturus low in the west-northwest at the same height as zero-magnitude Capella shining in the northeast. When this happens, turn to the south-southeast, and there will be 1st-magnitude Fomalhaut at the same height — if you're at latitude 43°…
This Week’s Sky at a Glance, October 4 – 12
Friday, Oct. 4 • The waxing Moon this evening shines between Saturn, to its left or upper left, and Jupiter farther to the Moon's lower right (off the center-right of the chart here). Saturday, Oct. 5 • It's both International Astronomy Day and International Observe the Moon Night! The Moon…
International Observe the Moon Night 2019
Observe the first-quarter Moon on October 5 for International Observe the Moon Night. Here's a guide to tell you what to look for.
Treasure Hunting in the Hall of the Deep-Sky King
Cepheus, the King, has hidden his treasure well but not so much that curious amateurs can't find more than enough to stuff their pockets.
October 2019: Giant Planets & Bits of Comet
This month's Sky Tour let's you enjoy close pairings of the Moon with Jupiter and Saturn; explore interesting stars and constellations, and keep watch for blazing bits of Halley's Comet.
This Week’s Sky at a Glance, September 27 – October 5
The starry W of Cassiopeia stands high in the northeast after dark this week. The right-hand side of the W, the brightest, is tilted up.
This Week’s Sky at a Glance, September 20 – 28
Jupiter is the white dot shining in the south-southwest as twilight fades away. Saturn glows far to its upper left.
Will Amateurs Be Able to See the New Interstellar Comet?
Only the second object thus far to visit the solar system from interstellar space, Comet Borisov is expected to reach perihelion in December. What can we see now?
100 Days Until Christmas “Ring of Fire” Eclipse
Here’s everything you need to know about the annular solar eclipse that will cross over much of Asia on December 26, 2019.
This Week’s Sky at a Glance, September 13 – 21
The Harvest Moon is full the night of Friday, the 13th. See what other night sights await.
Another Interstellar Visitor Is Headed Our Way
An amateur astronomer has discovered a comet that might be the second interstellar visitor after 'Oumuamua — and it's heading for its closest approach to the Sun late this year.
Observe Neptune as it Comes to Opposition
Neptune, currently the Solar System's outermost planet, reached opposition on September 10th at magnitude 7.8 in Aquarius.
Meet Barnard’s Star, Our Red Dwarf Neighbor
This faint red dwarf star is famous not because it's bright but because it's fast-moving — you can actually see it moving across the sky if you track it over several years.
This Week’s Sky at a Glance, September 6 – 14
Jupiter, in Ophiuchus, is the white dot hanging in the south-southwest in late twilight, Antares, fainter, twinkles 7° to Jupiter's lower right. Saturn glows four times as far to Jupiter's upper left.
Volcanoes Turn Twilights Purple
A rash of unusually colorful sunsets follows in the wake of two major volcanic eruptions.
