Starting Astrophotography: A complete guide - Click here! Magnitude 3.7 and 3.8. This image shows the Double Cluster in the constellation of Perseus. Image: Roberto Mura. 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. Double Cluster location in Perseus. The Double Cluster in Perseus (NGC 869 and NGC 884) are two open clusters in the constellation Perseus. Reviews; Details. Discover which star clusters, nebulae, and galaxies are the easiest and most impressive to photograph for each season. The Double Cluster, is NGC 884 and NGC 869, a group of two open star clusters in the Perseus constellation.It has many blue and red stars. At the age of 12.8 million years, the clusters are relatively young. Easy to spot in the northern winter sky between the constellations of Perseus and Cassiopeia, the Double Cluster is a favourite of amateur astronomers. NGC 884 (also known as χ Persei) is an open cluster located 7600 light years away in the constellation of Perseus. For those used to a narrow field of view, click here. Have you ever wanted to look up to the night sky, name any pattern of stars and be able to tell their stories? Each cluster contains more than 300 blue-white supergiants and their hottest stars on the main sequence belong to the spectral class B0. Also known as h Persei and χ Persei, the clusters both lie at an approximate distance of 7,600 light years from Earth and are about 12.8 million years old. Apparent magnitude: +3.7 This book groups the constellations in a logical order, so that the reader can easily learn them by their origin, and see how their stories interact with one another as a group. Each of the clusters contain more than 300 blue/white super-giant stars, many of which are visible in photographs. Also named Caldwell 14 or simply “The Double Cluster”, both star clusters are very similar to each other in size, magnitude, and age. 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. German-British astronomer William Herschel was the first to recognize that the object in fact consisted of two separate clusters. We decided to switch to this new target because our telescope was reaching the point of needing a Meridian flip and we decided to end it there for the Bubble. It was not until much later that the cluster’s true nature was recognized, after the invention of the telescope in the early 17th century. NGC 869 and NGC 884 lie at a distance of 7,500 light years. 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 NGC 884 and NGC 869, a group of two open star clusters in the Perseus constellation.It has many blue and red stars. English: The double cluster, in the constellation Perseus, is constituted of two open clusters: NGC 884 and NGC 869. Looking at the double cluster through binoculars is a beautiful sight, with both clusters of stars looking like two worlds dancing together. Double cluster in perseus is one of the most spectacular objects in the sky - easily visible with a naked eye even under moderate conditions (at it's combined magnitude of 4.3m). Double cluster • Chi Per • OCL 353 [2] [3] Karta; Portal Astronomija: NGC 884 je otvoreno zvjezdano jato i nalazi se u sazviježđu Perzej. The cluster is most likely around 12.5 million years old. Thankfully, we did not plan to take exposures longer than 30 seconds anyway as this is what we usually do for star clusters. NGC 884 Object Type: Open cluster Constellation: Perseus Magnitude: 4.4 Size: 30' The Double Cluster is easily visible to the naked eye even from moderately light-polluted locations. NGC 884 (also known as χ Persei) is an open cluster located 7600 light years away in the constellation of Perseus. Return to Thumbnails The final image is a result of 6 frames at 105s exposure each, processed in DeepSky Stacker. 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. Another cluster, NGC 957, is visible in the vicinity of the Double Cluster. English: The double cluster, in the constellation Perseus, is constituted of two open clusters: NGC 884 and NGC 869. The Double Cluster in Perseus (NGC 869 and NGC 884) are two open clusters in the constellation Perseus. Known individually as NGC 884 and NGC 869, the clusters are about 7,500 light-years from Earth. The Double Cluster, NGC 869 (right) and NGC 884 (left) with north to the top. They are a beautiful sight in a telescope at low power. We analyze eight sources with strong mid-infrared excesses in the 13 Myrold double cluster h and χ Persei. The two star clusters making up the Double Cluster are called NGC 869 (h Persei) and NGC 884 (Chi Persei). Learn how to find each object in the night sky, and read our recommendations on imaging them in a quick and comprehensive way. The Double Cluster (h and Chi Persei; NGC 869 and NGC 884) consists of two young open clusters that lie close together in the sky in Perseus and are visible to the naked eye on a clear, dark night as a hazy patch of light. Processing was very quick and easy. Both can be seen with the unaided eye and are usually easy to find if you are observing from a dark location. First Light Guides #10 and #11 are a combined guide, as both NGC 869 and NGC 884 would be wonderful objects to observe on their own. In mythology, the Double Cluster represents the jewelled handle of Perseus’ sword, given to the hero by the gods, along with a shield and a helmet, to help him in his challenges. 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. NGC 869 is estimated to be 7,000 light years distant. Starlight Express MX-916 on 3.5" Questar. 67 is to be interpreted as magnitude 6.7. Image: ESO/S. NGC869 and NGC884 --- The Double Cluster August 15, 2002. We did not think it would turn out good so we spent less than half an hour on it. The Double Cluster is the name for two open clusters – NGC 869 and NGC 884 – located close together in Perseus constellation. This pair of open clusters lie about 7,000 light-years away from Earth. 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. Processing wise I have not really done much just stretched it and a bit of noise reduction and that's it a nice easy one. Bortle 6 skies, T-4, S-3. 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. NGC 869, also known h Persei, is on the left, with NGC 884, also designated chi Persei, on the right. The Double Cluster (also known as Caldwell 14) is the common name for the naked-eye open clusters NGC 869 and NGC 884 (often designated h Persei and χ Persei, respectively), which are close together in the constellation Perseus. 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. 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. NGC884 + NGC869 'Double Cluster' Discussion in 'My Astrophotos' started by ROBERT T SCHAEFER JR, Oct 14, 2020. This was taken on September 4, 2011 at the usual location - Cheveresul Mare, near Timisoara. Estimated age: 12.5 million years a relatively young cluster. Distance: 7,600 light years (2,300 parsecs) NGC 869 and NGC 884, also named Caldwell 14 or simply The Double Cluster, are two clusters in the constellation of Perseus. Whether you are a beginner, intermediate, or advanced astrophotographer, this detailed book of the best deep sky objects will serve as a personal guide for years to come! Although their discovery surely predates written history, the "double cluster" was notably cataloged by the Greek astronomer Hipparcos. 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. Description: The Astrophotographer’s Journal is a portable notebook created for the purpose of recording observations, cataloguing photographs, and writing down the wonderful memories created by this hobby. The two clusters are separated by only hundreds of light years. This book contains more than 200 pages to memorialize your stargazing and imaging sessions, as well as a useful chart on the last pages to index exciting or important notes. Just as the pioneers of astronomy did in their time, look up and take notes of your observations as you are the author of this star-filled journey. L=R+G+B, R=G=B=96 secs (in 12 sec increments). NGC 884 (Chi Persei Cluster) - Open Cluster. Declination: +57°09′ They are a beautiful sight when observed through binoculars or instruments and many individual stars can be resolved if using a large telescope. Apparent size: 30′ 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. Right ascension: 2h 20m godine. Description: The Constellations Handbook is a logical guide to learning the 88 constellations. Prvo otkriće je napravio Hipparchus-130. Mosaic of 3 LRGB images. Image: Lukáš Kalista. We analyze eight sources with strong mid-infrared excesses in the 13 Myrold double cluster h and χ Persei. Distance: 7,600 light years (2,300 parsecs) Apparent size: 60′ Normal Inverted monochrome Large size Full size User. NGC 869 & NGC 884 - The Double Cluster in Perseus. 10 f/4.7 dob. NGC 869 (left) and NGC 884 make up the Double Cluster in the constellation of Perseus. The Double Cluster is a large, bright and easy target to photograph for any amateur astrophotographers. Omega Centauri and M42. NGC 869 and 884 are often designated h and χ Persei, respectively. Designations: NGC 869, Collinder 24, Melotte 13, h Persei, Right ascension: 02h 22.0m We imaged the Double Cluster with our Orion 8" Astrograph and ZWO ASI 1600MM Astrophotography camera. NGC 884 NGC869 and NGC884 --- The Double Cluster August 15, 2002. The clusters NGC 869 and NNGC 884 feature dozens of bright, densly packed stars. Image: Rawastrodata (Nikon D300 camera on an 8″ Newtonian reflector). Magnitudes are given without a decimal point, e.g. However, these authors point out that very probably, Tycho Brahe measured one position for the "nebulous star" that is actually the double cluster, and Johann Bayer designated this "star" as Chi. 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