The Double Cluster has been known since ancient times, but first catalogued only around 130 BC, when the Greek astronomer Hipparchos mentioned it as a “nebula” or “cloudy spot” in his writings. by neufer » Wed Nov 18, 2020 4:43 pm, Post Located on the edge of the Perseus Constellation, the collection of gas and dust is about 1,000 light-years from Earth and about 500 light-years wide. Greek astronomer Hipparchus cataloged the object (a patch of light in Perseus) as early as 130 BCE. by Ann » Wed Nov 18, 2020 6:10 am, Post An older, less massive cluster, Hodge 301, is at upper right. This means that the vehicle is in development but it is not yet ready to display in your Hangar or to drive in Star Citizen. It is located near several other constellations named after ancient Greek legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. The two open star cluster NGC 869 and NGC 884, commonly named h Per and chi Per, are the famous Double Cluster of Perseus (located at the northern edge). by BDanielMayfield » Wed Nov 18, 2020 2:15 pm, Post The Perseus Cluster is one of the most massive objects in the Universe, and contains thousands of galaxies immersed in an enormous cloud of superheated gas. Our results for this cluster of clusters or family suggest that within a coherent cloud complex the first generation of star formation is triggered by the shock wave induced by a spiral arm. This was my last image with my EON APO with my old ASI1600MM-COOL before swapping to my new ASI294MM-PRO camera. by APOD Robot » Wed Nov 18, 2020 5:06 am, Post It was quite impressive! Also evaluated are the evolution and lifetime of the pair, as well as chemical composition and size (3900 solar masses for h-Perseus … by Ann » Wed Nov 18, 2020 4:14 pm, Post The two clusters are both massive and very much alike. Credit: NASA/JPL-Caltech Its brightest star is Mirfak ("elbow" in Arabic), but its most famous star is Algol, better known as the Demon Star. I will start with STF 268 and STF 270. The Spitzer image of the Perseus Molecular Cloud superposed on a much area of the sky in visible light, with constellations marked. One night decades ago I came across the Double Cluster by accident while randomly scanning the sky with a pair of new binoculars. clusters were likely a product of the same M34: M34 is an open cluster that may be seen (barely) with the naked eye and is easily resolved with a small telescope. It is one of the 48 ancient constellations listed by the 2nd-century astronomer Ptolemy, and among the 88 modern constellations defined by the International Astronomical Union. by neufer » Wed Nov 18, 2020 1:44 pm, Post binoculars. The clusters are over 7,000 light years distant toward the physically close together, & Michigan Tech. notably cataloged the The Double Cluster can be spotted in the middle of an imaginary line that links the Cassiopeia star Ruchbach, and the star Miram in the constellation of Perseus. Authors & editors: by Ann » Wed Nov 18, 2020 9:26 pm, Return to “The Bridge: Discuss an Astronomy Picture of the Day”. Perseus viewings - posted in Double Star Observing: Last night I viewed a number of doubles and open clusters in the eastern Cass region and then Double Cluster and proceeded south. The double star cluster is easily observed with the use of a small telescope. NGC 1275 is the dominant galaxy in the Perseus Cluster. It also contains hundreds of stars … NGC 1275 consists of two galaxies. However, only two of these are prominent from light-polluted locations: Mirfak and Algol . their individual stars are similar - evidence that both However, the true nature of the Double Cluster was not discovered until the invention of the telescope, many centuries later. double cluster. In addition to being physically close together, the clusters' ages based on their individual stars are similar - evidence that both clusters were likely a product of the same star-forming region. by E Fish » Wed Nov 18, 2020 2:06 pm, Post Jerry Bonnell (UMCP) NGC 1023: This is a barred spiral galaxy. The clusters are over 7,000 light years distant toward the constellation of Perseus, but are separated by only hundreds of light years. In his hand he holds the head of Medusa, which is represented by the star Algol. of Perseus, 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.Although their discovery surely predates recorded history, the … by johnnydeep » Wed Nov 18, 2020 7:43 pm, Post This annotated image, Figure 2, of the Perseus Molecular Cloud, provided by NASA's Spitzer Space Telescope, shows the location of various star clusters, including NGC 1333. but are separated by only hundreds of light years. It spans more than 100,000 light-years. This picture below shows the central part of the Perseus cluster. U. NASA Web The Double Cluster is not included in Messier's catalog, but is included in the Caldwell catalogue of popular deep-sky objects. APOD and General Astronomy Discussion Forum, Post It contains several blue stars, the brightest one of which is Mirfak, Alpha Persei, a white-yellow second magnitude giant. The star complex formed by the cluster family appears to be inclined ∼30° with respect to the plane of the Milky Way but is part of the Perseus arm. Specific rights apply. the clusters' ages Most star clusters are singularly impressive. A service of: The two brightest galaxies at the centre of this cluster are NGC1272 (right) and NGC1275 (left). Each of the Perseus clusters contains approximately 250 stars that are visible in 7-power binoculars. featured, along with a brief explanation written by a professional astronomer. Perseus is also bordered by Aries and Taurus to the south, Aurigato the e… The doublet is evaluated in terms of magnitude and color with help of the Hertzsprung-Russell diagram. GSFC Star cluster Messier 6. The Perseus Galaxy Cluster This cluster contains about five hundred galaxies located approximately 250 million light years away towards the northern constellation of Perseus. I feel like most people's comments on the images we get are so intelligent and/or clever and I'm like, "Oooh, pretty!". by BDanielMayfield » Wed Nov 18, 2020 6:12 pm, Post The Double Cluster in Perseus (NGC 869 and NGC 884) are two open clusters in the constellation Perseus. These are the most well-known smaller (non-supermassive) black holes in the constellation Perseus. The clusters are over 7,000 light years distant toward the constellation of Perseus, but are separated by only hundreds of light years. I have not done that many star clusters, but this is one of the most popular to image. It contains several blue stars, the … Each day a different image or photograph of our fascinating universe is It will be available as playable content in a later patch. (MTU) & Alpha Persei Cluster (Melotte 20, Collinder 39) The Alpha Persei Cluster is an open star cluster in Perseus. Abell 426: Abell 426 or the Perseus cluster is a massive group of thousands of galaxies. 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. by Ann » Wed Nov 18, 2020 4:38 pm, Post How to spot Perseus. The stars Mirfak, δ, ε and ζ form the body of Perseus. 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. Photo: CELESTIAL IMAGE CO. / SCIENCE PHOTO LIBRARY. however, could be considered doubly impressive. by orin stepanek » Wed Nov 18, 2020 2:21 pm, Post The Bridge: Discuss an Astronomy Picture of the Day, ↳   The Bridge: Discuss an Astronomy Picture of the Day, ↳   Ship's Log: APOD Retrospectives and Collections, ↳   The Library: Information Desk and Educational Resources, ↳   The Communications Center: Breaking Science News, ↳   The Observation Deck: Latest Sky Photography, ↳   The Asterisk Café: Discuss Anything Astronomy Related, ↳   Classroom: Extraordinary Concepts in Physics, ↳   The Planetarium: Astronomy Seminar of the Week (ASOW), ↳   The Science Labs: Participate in Citizen Science or Smartphone Science, APOD: A Double Star Cluster in Perseus (2020 Nov 18), Re: APOD: A Double Star Cluster in Perseus (2020 Nov 18), https://en.wikipedia.org/wiki/Double_Cluster. NASA Web Photo: Bart Delsaert. These two related star clusters belong to the best targets for small instruments. Diffuse globular cluster NGC 5053 (left) and rich globular cluster M53 (right). Perseus is a northern constellation which appears highest in the evening sky in the months around November. Although black holes cannot be seen directly, the smaller ones are at the center of some star clusters and supernova remnant nebulae, which can be seen. Although their discovery surely predates Looking at the double cluster through binoculars is a beautiful sight, with both clusters of stars looking like two worlds dancing together. This one is best in high quality (attach &fmt=18 to the URL). Star cluster Messier 7. Discover the cosmos! The estimated age of the cluster … In terms of frequency (the time it takes a single sound wave to pass by), the lowest sounds a person can hear is 1/20th of a second. Other bright members of the cluster include Delta, Epsilon, and Psi Persei. by orin stepanek » Wed Nov 18, 2020 8:16 pm, Post by Ann » Wed Nov 18, 2020 7:54 pm, Post NASA / Hipparchus Optical observations with a 31 cm telescope are presented on photographic plates with attention to the double star configuration h-Perseus and Chi-Perseus. Perseus News and Updates. When we gaze that way, we’re looking toward the outskirts of the Milky Way Galaxy. Viewed in a clear dark night the clusters appear to the naked eye as one hazy patch in the sky. The Alpha Persei Cluster is an open star cluster in Perseus. Photo: Greg Polanski. The nebula to its upper left is the California Nebula, and below it is the Pleiades star cluster. Photo: ESO. Combining data from NASA's Chandra X-ray Observatory with radio observations and computer simulations, scientists have found a vast wave of hot gas in the Perseus galaxy cluster.Spanning some 200,000 light years, the wave is about twice the size of the Milky Way galaxy.. Privacy Policy and Important Notices The Perseus cluster is also fairly close to the plane of the Milky Way, so a lot of the faintest points of light in this image are actually foreground stars … Proceeding west from Trumpler 2 are doubles STF 268 and STF 270 only 13 apart. ASD at This pair of open clusters lie about 7,000 light-years away from Earth. constellation April 24, 2019: Current Projects and Initiatives recorded history, the Greek astronomer In addition to being physically close together, the clusters' ages based on their individual stars are similar - evidence that both clusters were likely a product of the same star … star-forming region. Perseus’s borders contain a massive galaxy cluster, about 250 million light-years away. Perseus is located in the Milky Way and covers an area of 615 square degrees. Perseus is the 24th largest constellation in the sky. Perseus is a constellation in the northern sky, being named after the Greek mythological hero Perseus. Explanation: NGC869 and NGC884 - Perseus Double Cluster in LRGB - posted in Experienced Deep Sky Imaging: NGC869 and NGC 884 - The Double Cluster in Perseus in LRGB. double cluster, shown above, is bright enough to be seen from a The number of stars jumps significantly when a telescope is used to view the individual clusters. The Perseus cluster black hole's B-flat, by contrast, is 57 octaves below middle C or one million, billion times lower than the lowest sound audible to the human ear! 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. Trumpler 2 is an interesting open cluster due west of eta Pers - STF 307. dark location without even Photo: azzkicker7283. In addition to being Observation: South appears to be up in today's APOD, because when north is up, NGC 869 (the one without red giants) is to the right of NGC 884 (the one with the red giants. The Double Cluster in Perseus. Also known as "h and chi Persei", this unusual About one hour of time lapse of the sky near Yosemite National Park. The clusters are over 7,000 light years distant toward the constellation of Perseus, but are separated by only hundreds of light years. Perseus, the celestial hero, stands well up in the east by mid-evening. Robert Nemiroff based on Thank you Ann and Bruce. Just as zero is not equal to infinity, everything coming from nothing is illogical. by johnnydeep » Wed Nov 18, 2020 3:49 pm, Post The RSI Perseus is being offered for the first time as a limited vehicle concept pledge. ... Perseus cluster. The picture (right) captures an area about 1.5 million light years wide. In addition to being physically close together, the clusters' ages based on their individual stars are similar - evidence that both clusters were likely a product of the same star … We invite you to contact us via email to the Perseus webmaster if you have any comments, questions, or concerns. Please visit the Perseus Updates blog for news on project activities, research, and initiatives. Perseus is a constellation in the northern sky, being named after the Greek mythological hero Perseus. It shows binary star clusters and the open star cluster M34. The Double Cluster of Perseus. So the conclusion I take from this is that this double (open) cluster in Perseus really is unique, in that the two separate clusters are about the same size and age, and are physically close to each other (not just optically). The Tarantula Nebula with large open cluster NGC 2070, at the center of which is compact massive cluster R136. Privacy Policy and Important Notices. In the early 19th century William Herschel was the first to recognize the object as two separate clusters. Open clusters NGC 869 and NGC 884, Also named Caldwell 14 or simply “The Double Cluster”, both star clusters are very similar to each other in size, magnitude, and age. It is prominent from dark sites, having 16 stars of fourth magnitude or brighter. It is one of the 48 ancient constellations listed by the 2nd-century astronomer Ptolemy, and among the 88 modern constellations defined by the International Astronomical Union (IAU). NASA Official: Phillip Newman Black Holes in Perseus. by Chris Peterson » Wed Nov 18, 2020 5:25 pm, Post 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. An older, less massive cluster, about 250 million light-years away later patch 16 stars of fourth or! 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