ngc 869 and ngc 884

Moon age: Please note: AstroBin is not officially a backup service. Apparent magnitude: +3.8 Please reload the CAPTCHA. Thank you for understanding! It is the easternmost of the Double Cluster with NGC 869. NGC 869 & 884 Contains: NGC 884, Double cluster, NGC 869, The star 7Per, The star 8Per. Double Cluster location in Perseus. revision!  =  Free high resolution images ngc 869 and ngc 884, night, sky. Both clusters contain a significant number of bright, young O and B-type stars. NGC 869 and NGC 884 both lie at a distance of 7500 light years. 2857193, RA center: Some confusion surrounds what Bayer intended by these designations. 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 … position for the "nebulous star" that is actually the double cluster, and https://twitter.com/AstroBin_com. The Double Cluster, or Caldwell 14, is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation.Also known as h Persei and χ Persei (h and Chi Persei), the clusters both lie at an approximate distance of 7,600 light … Also known as "h and chi Persei", this unusual double cluster , shown above, is bright enough to be seen from a dark location without even binoculars . Inverted monochrome Annotated (original version) Large size Full size User. if ( notice ) Shop online. AstroBin is a very small business and your support would mean a lot! 2.0 hours, Darks: Open clusters NGC 869 and NGC 884, however, are doubly impressive. Would you be interested in upgrading? Caldwell 14 in Patrick Moore's list. +57° 9' 54", Pixel scale: NGC 869 and 884 are often designated h and χ Persei, respectively. Both are very similar to each other in size, magnitude, and age. NGC 869 and 884 are often designated h and χ Persei, respectively. NGC 869 has a mass of 3700 solar masses and NGC 884 weighs in at 2800 solar masses; the total mass for the complex is estimated in excess of 20,000 solar masses when including an extensive halo of stars. })(120000); Designations: NGC 869, Collinder 24, Melotte 13, h Persei, Right ascension: 02h 22.0m }, By using this form you agree with the storage and handling of your data by this website. These open clusters formed relatively recently in astronomical terms and move together through space, approaching us at a speed of roughly 80 000 kilometres per hour. Their hottest main sequence stars are of spectral type B0. Its revisions will not be deleted. The double cluster is in the RASC's These bright clusters are often photographed or observed with small telescopes. The images on this websites are copyright of their respective owners. © The British Astronomical Association 2020 Individually, the clusters have a mass of 3,700 solar masses (NGC 869) and 2,800 solar masses (NGC 884), but as each cluster is surrounded by an extended halo of stars, the total mass of the Double Cluster is at least 20,000 solar masses. The famous Double Cluster in the constellation of Perseus consists of the star clusters h and chi Persei, which lie some 7100 and 7400 light-years away from Earth, respectively, and appear very close to each other on the sky. ~20, Flats: The cluster is most likely around 12.5 million years old. NGC 869 has a mass of 3700 solar masses and NGC 884 weighs in at 2800 solar masses; however, later research has shown both clusters are surrounded with a very extensive halo of stars, with a total mass for the complex of at least 20,000 solar masses. NGC 869, also known h Persei, is on the left, with NGC 884, also known as chi Persei, on the right. Image: Lukáš Kalista. The Double Cluster (NGC 869 and NGC 884) in Perseus. 68.233 degrees, Field radius: The Double Cluster, NGC 869 (top) and NGC 884 (bottom) with north to the left. Seqence Generator Pro, Frames: Easy to spot in the northern winter sky between the constellations of Perseus and Cassiopeia, the Double Cluster is a favourite of amateur astronomers. Registered charity no. Estimated age: 13 million years NGC 869 has a mass of 3700 solar masses and NGC 884 weighs in at 2800 solar masses; the total mass for the complex is estimated in excess of 20,000 solar masses when including an extensive halo of stars. Distance: 7,600 light years (2,300 parsecs) 11.08 days, Avg. Are you sure? NGC 869 has a mass of 3700 solar masses and NGC 884 weighs in at 2800 solar masses; however, later research has shown both clusters are surrounded with a very extensive halo of stars, with … The smaller open cluster is similar in age and distance from Earth to its larger neighbour and possibly shares the same origin. 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. This site uses Akismet to reduce spam. Apparent size: 30′ Each cluster contains more than 300 blue-white supergiants and their hottest stars on the main sequence belong to the spectral class B0. The image will be permanently deleted and cannot be recovered. In comparison, the Pleiades cluster (Messier 45) has an estimated age between 75 and 150 million years. NGC 869 has a mass of 3700 solar masses and NGC 884 weighs in at 2800 solar masses; however, later research has shown both clusters are surrounded with a very extensive halo of stars, with a total mass for the complex of at least 20,000 solar masses. 1 Another cluster, NGC 957, is visible in the vicinity of the Double Cluster. Image: Genuson at wikipedia.org. Exposure: Lum: 16x600s R,G,B: 6x600s each Total: 5,7 hours The clusters were first recorded by Hipparchus, but have likely been known since antiquity. 1.817 Mass: 2,800 solar masses Top banner image:The Moon, by Nick James. Age: 12.8 million years ... Dati di NGC 869 - VizieR Service, su vizier.u-strasbg.fr. ontdekt door de Griekse astronoom Hipparchus.De open sterrenhoop is naar schatting 31 miljoen jaar oud. Ptolemy listed the cluster as of the seven “nebulosities” in his Almagest. Image: Rawastrodata (Nikon D300 camera on an 8″ Newtonian reflector). This page or operation is not available at the moment, because AstroBin is in READ ONLY mode. You will delete all other revisions (if any), and the originally uploaded image, leaving the current revision as the final and only version of this image. even pre-historically), and first cataloged by the Greek astronomer Hipparcos. The westernmost cluster, NGC 869, appears slightly brighter, richer and more compact than NGC 884. Based on their individual stars, the clusters are relatively young, both 12.8 million years old. View profile … Backyard. confusion about the identity of the designations or names, or the objects "Chi" This website uses cookies to personalise content and ads, and to analyse user traffic. They The clusters are also blueshifted, with NGC 869 approaching Earth at a speed of 39 km/s (24 mi/s) and NGC 884 approaching at a similar speed of 38 km/s (24 mi/s). The clusters were first recorded by Hipparchus, but have likely been known si… 121x60" bin 1x1, Integration: By continuing to use the site, you agree to the use of cookies. It is the easternmost of the Double Cluster with NGC 869. Both clusters are situated in the Perseus OB 1 association, and also only a Copyright of all images and other observations submitted to the BAA remains with the owner of the work. The Double Cluster is a favorite of amateur astronomers. View. The image will be permanently deleted and cannot be recovered. Their hottest main sequence stars are of spectral type B0. and "h" Persei. The two clusters are separated by only hundreds of light years. 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. Image: ESO/S. Such limitation improves the website as a whole by discouraging people from creating fake accounts to like their own images. Designations: Double Cluster, Caldwell 14, NGC 869 and NGC 884, h Persei and χ Persei, Right ascension: 02h 19.1m View. These cookies will be stored in your browser only with your consent. 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. Do not notify your followers about this revision. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Located in the Perseus OB1 association, both clusters are located physically close to one another, only a few hundred light years apart. Please reload the CAPTCHA. that very probably, Tycho Brahe measured one Equipment: ST … It is sometimes claimed that Bayer could not have resolved the pair into two patches of nebulosity, and that Chi refers to the Double Cluster and h to a nearby star; see Stephen James O'Meara and Daniel W.E. Declination: +57°09′ 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. Licence: Creative Commons - CC0. Apparent size: 30′ }, In comparison, the Pleiades have an estimated age ranging from 75 million years to 150 million years. are both quite young: h is listed at 5.6, chi at 3.2 million years Dominated by bright blue stars, the cluster also hosts a few orange stars that add to the visual interest. The famous double cluster in Perseus was known in antique times (probably The Double Cluster was also included in the Caldwell catalogue, a catalogue of astronomical objects for amateur observation.[3]. attributed to NGC 884, and "h" to NGC 869. Both clusters are blueshifted: NGC 869 is approaching us at a speed of 39 km/s, while NGC 884 is moving in Earth’s direction at 38 km/s. (Sky Catalog 2000); their hottest main sequence stars are of spectral type B0. The cluster lies near the radiant of the Perseid meteor shower, which peaks annually in mid-August. O'Meara and Green (2003) point out to some historical NGC 869, also known h Persei, is on the left, with NGC 884, also known as chi Persei, on the right. SAC 110 best NGC object list. PixInsight, Adobe Photoshop, etc) here on AstroBin, for archival purposes. Declination: +57°08′ (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.

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