.hide-if-no-js { Based on their individual stars, the clusters are relatively young, both 12.8 million years old. arcsec/pixel, Orientation: [4] The cluster is most likely around 12.5[2] million years old. and "h" Persei. Easy to find, the clusters are visible with the unaided eye between the constellations of Perseus and Cassiopeia as a brighter patch in the winter Milky Way.

~100, Avg.

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. four NGC 869 and NGC 884 both lie at a distance of 7500 light years. NGC 869 & NGC 884 Contains: Double cluster, NGC 869, NGC 884, The star 7Per. If this user has been harassing you, and you shadow-ban them, all their activities on your content will be invisible to everyone except themselves.
Both clusters contain a significant number of bright, young O and B-type stars. For more information, please check out our Twitter feed: The clusters were likely formed in the same star forming cloud in the Perseus Arm of the Milky Way and both belong to the Perseus OB1 association, a group of extremely massive stars.

Last … Inverted monochrome Annotated Large size Full size User. The western component of the pair, h Persei, entry 689 in the New General Catalogue (NGC 689), is about 5.6 million years old, while Chi Persei (NGC 884) is closer to 3.6 million years old. Thank you for understanding! NGC 869 and NGC 884 both lie at a distance of 7500 light years. This will trigger the regeneration of all thumbnails for this image and all its revisions. Based on their individual stars, the clusters are relatively young, both 12.8 million years old. Andre van der Hoeven

Distance: 7,600 light years (2,300 parsecs) Distance: 7,600 light years (2,300 parsecs) Their hottest main sequence stars are of spectral type B0. Declination: +57°08′ It is mandatory to procure user consent prior to running these cookies on your website.

The Double Cluster (also known as Caldwell 14) is the common name for the naked-eye open clusters NGC 869 andNGC 884 (often designated h Persei and χ Persei, respectively), which are close together in the constellation Perseus. function() { Apparent size: 60′ display: none !important; *. 210769 NGC 869 and NGC 884, also named Caldwell 14 or simply The Double Cluster, are two clusters in the constellation of Perseus. They are both located at a distance of 7000 light-years, and are very young for star clusters, NGC 869 being 5.6 million years old, and NGC 884 being 3.2 million years … Required fields are marked *. 11.08 days, Avg.

85.40%, Astrometry.net job: (Sky Catalog 2000); their hottest main sequence stars are of spectral type B0. Johann Bayer designated this "star" as Chi.

Located in the Perseus OB1 association, both clusters are located physically close to one another, only a few hundred light years apart. Stephen James O'Meara and Daniel W.E. The smaller open cluster is similar in age and distance from Earth to its larger neighbour and possibly shares the same origin. The clusters are dominated by bright blue stars and, speckled with a few fine orange stars, make a spectacular sight in the night sky, especially through binoculars. The Double Cluster occupies a total area of 60 arc minutes of apparent sky, which is twice the size of a full Moon. Their hottest main sequence stars are of spectral type B0.

Also known as h Persei and χ Persei (h and Chi Persei), the clusters both lie at an approximate distance of 7,600 light years from Earth and are about 12.8 million years old.

Mass: >20,000 solar masses 2857193, RA center: In small telescopes, the cluster appears as a beautiful assemblage of bright stars located in a rich star field. setTimeout(

NGC 869 & NGC 884 Contains: Double cluster, NGC 869, NGC 884, The star 7Per.
Green, 2003. Top banner image:The Moon, by Nick James. ← NGC 7635 (Bubble) and SH2-157 Double Cluster location in Perseus.