Guided SW Alt-Az EQ6 with Orion 60mm, and NexGuide. Facts about Perseus Constellation The Double Cluster, or Caldwell 14, is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation. There are lots of notable deep-sky objects (star clusters, nebulae and galaxies) in Perseus to enjoy, such as the Alpha Persei Cluster, which is visible to the naked eye as a group of blue stars, and at just 60 million years old is astronomically speaking very young . This star has an apparent magnitude of 9.23, however, its brightness is very unpredictable, varying from 7.9 to 12.0, at chaotic rates. It is located about 5 degrees west of Algol. The Double Cluster is located in the far northwestern part of Perseus, close to the border with Cassiopeia. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. The clusters are over 7,000 light years distant toward the constellation of Perseus, but are separated by only hundreds of light years. [9], Perseus is the mythological symbol of adventure. Mont-Mégantic, Québec, Canada. However, the true nature of the Double Cluster was not discovered until the invention of the telescope, many centuries later. Both visible with the naked eye, NGC 869 and NGC 884 lie at a distance of 7,500 light years.[1]. Both are very similar to each other in size, magnitude, and age. 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). November. Both visible with the naked eye, NGC 869 and NGC 884 lie at a distance of 7,500 light years. The Double Cluster in the constellation Perseus is a breathtaking pair of star clusters, each containing supergiant suns. This pair of open clusters lie about 7,000 light-years away from Earth. More than 300 blue-white supergiant stars are located in both clusters. It is considered a sky jewel, although, it is not visible to the naked eye. Re: Double Cluster in Perseus - ASI294MM Post by Graeme1858 » Sun Oct 25, 2020 8:14 am jthommes wrote: ↑ Sun Oct 25, 2020 3:57 am There are examples on forums of dark frames that look scary with strong amp glo, but my experience is that the lights calibrate this out completely. The Double Cluster is the common name for the open clusters NGC 869 and NGC 884 , which are close together in the constellation Perseus. Although easy to locate in the northern sky, observing the Double Cluster in its two parts requires optical aid. The Double Cluster lies just above the “stick” of stars that make up Perseus’s body. NGC 869 is 3700 times the mass of our sun and NGC 884 is 2800 times. Shop online, Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Also named Caldwell 14 or simply “The Double Cluster”, both star clusters are very similar to each other in size, magnitude, and age. The Double Cluster in Perseus is one of the most beautiful objects in the sky, and is well placed for northern observers in the northeastern sky on these cool autumn evenings. NGC 884 includes five prominent red supergiant stars, all variable and all around 8th magnitude: RS Persei, AD Persei, FZ Persei, V403 Persei, and V439 Persei. November. Perseus was born the son of the Greek god Zeus. A Double Star Cluster in Perseus. Image gallery The Double Cluster located in Perseus consists of the open clusters NGC 869 and NGC 884. These young stars lie about 7000 light-years from … Star Clusters in Perseus Constellation. The Double Cluster lies at a distance of 7500 light years from Earth. The Double Cluster of Perseus is a pair of star clusters h and χ Persei. The Perseus Cluster which appears to be nothing more than a mere star field is actually a cluster of … For more information including contact details, click here. It contains many blue and red stars. 2020. 2020. The Double Cluster (also known as Caldwell 14) consists of the open clusters NGC 869 and NGC 884 (often designated h Persei and χ Persei, respectively), which are close together in the constellation Perseus. The Double Cluster is approximately the radiant of the Perseid meteor shower, which peaks annually around August 12 or 13. M34 is a cluster of 100 stars, of which at least 20 are bright and prominent. Perseus also contains a number of famous deep sky objects, among them Messier 34, the Double Cluster, the California Nebula (NGC 1499) and the Little Dumbbell Nebula (Messier 76). The Double Cluster represents the jewelled handle of Perseus's sword. Pictures, altitude charts, data sheet and sky map for Double Cluster - - Open cluster in Perseus Constellation Double Cluster with wide field of view - posted in Deep Sky Observing: Howdy all; I do love the Double Cluster in Perseus and I think it loves me back. Perseus Cluster Facts: 6-10. These are two red supergiant stars in the star cluster. [citation needed], Catalogue of Nebulae and Clusters of Stars, https://en.wikipedia.org/w/index.php?title=Double_Cluster&oldid=988676700, Astronomical objects known since antiquity, Articles with unsourced statements from December 2010, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 November 2020, at 16:29. Along with beheading Medusa, Perseus performed other heroic deeds as well, such as saving Andromeda who was a princess chained to a rock as a sacrifice to a sea monster. I’ve imaged the Double Cluster with just about every different scope and camera that I’ve used. If you come across the term Abell 426, it is the same as the Perseus Cluster. The Double Cluster in Perseus (NGC 869 and NGC 884) are two open clusters in the constellation Perseus. FACTS, LOCATION & MAP Perseus is the 24th largest constellation … Stars RS Persei and T Persei. In the Northern Hemisphere, this grouping is always above the horizon, making it a popular target for observing year-round. Here are some observations with wide field views from refractors of a variety of apertures. Perseus is … One of my favourite star clusters is the Double Cluster in Perseus which is now rising nicely in the North East sky. They are located at around 7,500 light-years away from us and have an apparent magnitude of 3.7 and 3.8 respectively. Although their discovery surely predates recorded history, the Greek astronomer Hipparchus notably cataloged the double cluster. Website designed by Dominic Ford. Although their discovery surely predates recorded history, the Greek astronomer Hipparchus notably cataloged the double cluster. The clusters are over 7,000 light years distant toward the constellation of Perseus, but are separated by only hundreds of light years. With a declination of 57N, it's circumpolar from many northern locations and therefore never sets. [8], The Double Cluster is circumpolar (continuously above the horizon) from most northern temperate latitudes. July 26, 2017. A Double Star Cluster in Perseus Explanation: Most star clusters are singularly impressive.Open clusters NGC 869 and NGC 884, however, could be considered doubly impressive. NGC884 and NGC869 both lie at a distance of 7500 light years. Double Cluster. Also known as h and χ Persei, the Double Cluster (comprising NGC 869 and NGC 884) is a "line of sight" pairing in the constellation in Perseus, though actually they are only a few hundred light years apart. 117572 Both visible with the naked eye, NGC 869 and NGC 884 lie at a … In the early 19th century William Herschel was the first to recognize the object as two separate clusters. How to find it in your sky. [7] Bayer's Uranometria chart for Perseus does not show them as nebulous objects, but his chart for Cassiopeia does, and they are described as Nebulosa Duplex in Schiller's Coelum Stellatum Christianum, which was assembled with Bayer's help. www.eyesonthesky.com The Double Cluster is one of the best sights to see in the autumn sky. NASA also says that the cluster is actually a part of an even bigger structure known as the Pisces-Perseus supercluster which composed of well over 1000 galaxies. Click image for full size version. Both clusters are surrounded with a very extensive halo of stars. It is just that the cluster has been cataloged as Abell 426. 210769 Registered company no. The Double Cluster is located in the far northwestern part of Perseus, close to the border with Cassiopeia. S Persei S Persei is a red supergiant or hypergiant star located near the Double Cluster in Perseus, situated at 7,900 light-years away from us. For more information, please, Supporting amateur astronomers since 1890, © The British Astronomical Association 2020, The BAA's Commission for Dark Skies (CfDS). NGC 869 has a mass of 3700 solar masses and NGC 884 2800 solar masses; so the total mass for the complex is estimated in excess of 20,000 solar masses when including an extensive halo of stars. The Sky-Watcher Esprit 150 with the QHY-16200 camera really hits the sweet spot, getting the cluster well resolved in a nice frame. A Double Star Cluster in Perseus. Home. Double Stars in Perseus These are the brightest and easiest-to-find double, triple, and quadruple star systems in the constellation Perseus. The Double Cluster (Caldwell 14) is the common name for the naked-eye open clusters NGC884 and NGC869 (often designated Chi Persei and H Persei, respectively), which are close together in the constellation Perseus. The clusters have a combined visual magnitude of 3.7 and 3.8 and are visible to the naked eye as a fuzzy patch between Perseus and Cassiopeia. Registered charity no. The Double Cluster in … The Double Cluster itself is made up of two open clusters, NGC869 and NGC884 that are some 7,500 light years away. Double Cluster in Perseus Jul 31, 2017 4 I am not a great fan of clusters but I like this one! Also named Caldwell 14 or simply the Double Cluster is located between the Perseus Cassiopeia. Across the term Abell 426 stars that make up Perseus ’ s body third-parties is expressly forbidden without the of! 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