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Credit & Copyright: Ron Brecher
Explanation:
This
stunning starfield
spans about three full moons (1.5 degrees)
across the heroic northern constellation of
Perseus.
It holds the famous
pair of open star clusters,
h and Chi Persei.
Also cataloged as
NGC 869 (right)
and NGC 884,
both clusters are about 7,000 light-years away and
contain stars much younger and hotter than the Sun.
Separated by only a few hundred light-years, the clusters are
both 13 million years young
based on
the ages of their
individual stars,
evidence that both clusters were likely a product of the same star-forming
region.
Always a rewarding
sight
in binoculars or small telescopes,
the Double Cluster is even visible to the unaided eye from
dark locations.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: open cluster - galactic cluster
Publications with words: open cluster - galactic cluster
See also:
- APOD: 2025 April 28 B Gum 37 and the Southern Tadpoles
- Open Star Clusters M35 and NGC 2158
- APOD: 2025 February 25 B M41: The Little Beehive Star Cluster
- APOD: 2025 February 11 B The Spider and the Fly
- APOD: 2024 October 29 B NGC 602: Stars Versus Pillars from Webb
- NGC 7789: Caroline s Rose
- APOD: 2024 July 2 B NGC 602: Oyster Star Cluster