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Star Clusters

A wide-field view of M44, the Beehive Cluster, showing a loose, sprawling grouping of bright, individually resolved stars scattered across the center of the frame. The cluster's most prominent members are large, brilliant blue-white stars, contrasted by several warm orange and golden stars interspersed among them. The cluster has no tight central concentration, spreading openly across the field with a rich background of much fainter stars visible throughout the deep black sky.
Deep-Sky Objects, Observing

Observe spring’s star clusters

Deep-Sky Objects

Magnificent NGC clusters in the winter sky

Stars

Astronomers find the ‘Greater Pleiades Complex’

Deep-Sky Objects

Discover great star clusters of the New General Catalogue

Deep-Sky Objects

Explore the constellation Cassiopeia

Planets

The Red Planet lights up a famous star cluster this month

Deep-Sky Objects, Observing

The best deep-sky targets in Taurus

The Skull Nebula
Deep-Sky Objects, Observing

Five ‘shy,’ lesser-known deep-sky gems to observe

Universe, Discovered

Universe, Discovered: Comet Tsuchinshan-ATLAS fades

Deep-Sky Objects, Observing

Observe a great star cluster: This Week in Astronomy with Dave Eicher

Deep-Sky Objects, Observing

Explore the Hercules Cluster: This Week in Astronomy with Dave Eicher

The contributions from NASA’s Chandra X-ray data provide the blue and white flickering lights from young stars and the green pine needles come from the optical data collected by the National Science Foundation’s WIYN Observatory.
Astrophotography, Exotic Objects, Observing

Merry Christmas from the cosmos

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