Comet,

 

Astronomy Picture of the Day: Red Nebula, Green Comet, Blue Stars

This festively colored skyscape was captured in the early morning hours of December 17, following Comet Wirtanen's closest approach to planet Earth. The comet was just visible to the eye.

The Conjunction of the 46p/wirtanen comet, the hyades cluster and the Pleiades cluster


Astronomy Picture of the Day: Meteor, Comet, and Seagull (Nebula)

A meteor, a comet, and a photogenic nebula have all been captured in this single image.

Astronomy Picture of the Day: Comet, Clusters and Nebulae

Bright enough for binocular viewing Comet 21P / Giacobini-Zinner stands out, even in this deep telephoto mosaic of the star cluster and nebula rich constellation Auriga the Charioteer.

Astronomy Picture of the Day: Comet, Heart and Soul

The greenish coma of comet 21P/Giacobini-Zinner stands out at the left of this telephoto skyscape spanning over 10 degrees toward the northern constellations Cassiopeia and Perseus.

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