Observing | Page 21 of 71 | Astronomy.com

A spectacle of sparkling stars and shining planets dance in hues of yellow, orange, and blue, as if creating a painting made by nature during the transition from civil twilight to nautical twilight.

Discover the three kinds of twilight

Astronomy contributing author Alister Ling views Comet Lemmon under a clear sky.

Observing, Upcoming Events

See Comet Lemmon at its brightest this week

Stunning celestial sights such as the Milky Way under clear skies require absolutely zero magnification at all.

Observing Basics

Strange Universe: Zero-power love affair

A close-up image of M51 properly calibrated.

Observing Basics

Observing Basics: Coming to terms

The author’s photo-illustration attempts to capture the unusual appearance of totality, as seen during the April 20, 2023, hybrid solar eclipse near Com, East Timor.

The Moon, The Sun

Secret Sky: A topsy-turvy eclipse

Constellation Perseus

Deep-Sky Objects

Binocular Universe: Heroic treasures

Jupiter and its Galilean moons

Sky This Month: November 2023

The Cocoon Nebula and the Dark Cigar Nebula

The Sky This Week from October 27 to November 3: See the dark side of space

An Orionid streaks agains the background stars

The Sky This Week from October 20 to 27: Catch the Orionids

Orionid meteor

Upcoming Events

The Orionids will put on a show this weekend

Winner of the 50th anniversary essay contest announced

Comet Nishimura

Science, Solar System

Comets explained: An essential guide to the snow cones of space