ngc 869 and ngc 884

   October 22, 2020   No Comments on ngc 869 and ngc 884

2.0 hours, Darks: Designations: Double Cluster, Caldwell 14, NGC 869 and NGC 884, h Persei and χ Persei, Right ascension: 02h 19.1m Are you sure? So please also keep additional copies of your file.

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Fa parte dell'associazione Perseus OB1, assieme all'altro, NGC 884, dal quale dista fisicamente alcune centinaia di anni luce; entrambi si trovano sul Braccio di Perseo, uno dei due bracci di spirale maggiori della Via Lattea.

Dominated by bright blue stars, the cluster also hosts a few orange stars that add to the visual interest. You will delete all revisions, leaving the originally uploaded image as the final and only version of this image. In comparison, the Pleiades cluster (Messier 45) has an estimated age between 75 and 150 million years. Registered charity no. Double Cluster location in Perseus.

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1.817 October 2, 2014 Constellation: Perseus View. Necessary cookies are absolutely essential for the website to function properly. 68.233 degrees, Field radius: Please note: AstroBin is not officially a backup service. Please reload the CAPTCHA. Age: 12.8 million years Based on their individual stars, the clusters are relatively young, both 12.8 million years old, with the hottest stars having spectral class B0; NGC884 also has 5 prominent red supergiants including variable RS Per (closest to the centre of the lower cluster).Image acquisition: Graeme Coates & Paul TribeProcessing: Graeme Coates.

The Double Cluster, NGC 869 (top) and NGC 884 (bottom) with north to the left. Probably, he used the name "h Persei" for a fainter nearby star.

Brunier.

[4] The cluster is most likely around 12.5 [2] million years old. NGC 884 (also known as χ Persei) is an open cluster located 7600 light years [2] away in the constellation of Perseus.It is the easternmost of the Double Cluster with NGC 869.NGC 869 and 884 are often designated h and χ Persei, respectively. This website uses cookies to personalise content and ads, and to analyse user traffic. Apparent size: 60′ In comparison, the Pleiades have an estimated age ranging from 75 million years to 150 million years. The famous double cluster in Perseus was known in antique times (probably .hide-if-no-js { The cluster is most likely around 12.5 million years old. },

The Double Cluster, or Caldwell 14, is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation. This will trigger the regeneration of all thumbnails for this image and all its revisions.

Forum Ptolemy listed the cluster as of the seven “nebulosities” in his Almagest. ~25, Bias: are both quite young: h is listed at 5.6, chi at 3.2 million years

NGC Online data for NGC 869; NGC Online data for NGC 884. It is easy to find in the sky because it lies just to the east of the familiar W shape of Cassiopeia constellation, between the stars Ruchbah (Delta Cassiopeiae) in Cassiopeia and Miram (Eta Persei), which marks the pointed top of Perseus. NGC 869 and NGC 884 both lie at a distance of 7500 light years. 2h 20' 49", DEC center: The westernmost cluster, NGC 869, appears slightly brighter, richer and more compact than NGC 884.

This file is stored privately and only you will have access to it. Right ascension: 2h 20m Both clusters are listed in the

Do not notify your followers about this revision. Their hottest main sequence stars are of spectral type B0. If the Double Cluster were as close to us as the Pleiades (444 light years), it would occupy a quarter of the northern sky and contain some of the brightest stars visible from Earth. However, by storing your work here, you can have some additional peace of mind. There are more than 300 blue-white super-giant stars in each of the clusters. *.

Green, 2003, "The Mystery of the Double Cluster", Centre de données astronomiques de Strasbourg, "Astrophysical Parameters of Galactic Open Clusters", https://en.wikipedia.org/w/index.php?title=NGC_884&oldid=960066434, Articles with dead external links from January 2018, Articles with permanently dead external links, Creative Commons Attribution-ShareAlike License, This page was last edited on 31 May 2020, at 23:39.

© The British Astronomical Association 2020

position for the "nebulous star" that is actually the double cluster, and (Sky Catalog 2000); their hottest main sequence stars are of spectral type B0. Het vormt een dubbelcluster met NGC 884 (zie afbeelding: links ligt NGC 884 en rechts ligt NGC 869). You also have the option to opt-out of these cookies.

Both NGC 869 and NGC 884 are getting closer to Earth at a rate of 24 miles per second. 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.

[4] The cluster is most likely around 12.5[2] million years old. Green, 2003. 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. 0.907 attributed to NGC 884, and "h" to NGC 869.

); Copyright © 2012 André van der Hoeven. (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.

NGC 884 (also known as χ Persei) is an open cluster located 7600 light years away in the constellation of Perseus.It is the easternmost of the Double Cluster with NGC 869.NGC 869 and 884 are often designated h and χ Persei, respectively. For more information, please check out our Twitter feed: The cluster lies near the radiant of the Perseid meteor shower, which peaks annually in mid-August. 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 old. The image will be permanently deleted and cannot be recovered. Apparent magnitude: +3.8 Inverted monochrome Annotated Large size Full size User. References. Apparent size: 30′ NGC 869/884 Double Cluster LRGB-Ha →, Your email address will not be published. Moon phase:

and "h" Persei. Johann Bayer designated this "star" as Chi. Image: Rawastrodata (Nikon D300 camera on an 8″ Newtonian reflector).

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