gamma cassiopeiae nebula

gamma cassiopeia ic59 ic63 Nebulas This entry was posted on Tuesday, January 6th, 2015 at 3:43 pm and is filed under DSO , Nebulas , Wide fields . Looking through our home galaxy - the Mikly Way with its countless wonders as well as at other galaxies closer or more distant from the Milky Way, all of that make us to believe that one day we could better understand the universe and our role in it. The entire constellation is visible from locations between the latitudes 90° N and 20° S. The 10 brightest stars in Cassiopeia are Gamma Cassiopeiae (mag. Gamma Cassiopeia Region Emission and reflection nebulas located in Cassiopeia. Schedar (alpha Cassiopeiae - α Cas) - is a magnitude +2.24 orange giant star, located 228 light-years distant. The brightest star belonging to this group is Achernar in the constellation Eridanus, the ninth brightest star in the sky. Acamar Achernar Acrux Adhara Albireo Alchiba Alcor Alcyone Aldebaran Alderamin Algenib Algol Algorab Alhena Alioth Alkaid Alkes Almach Alnair Alnilam Alnitak Alpha Centauri Alphard Alphecca Alpheratz Altair Aludra Ankaa Anser Antares Arcturus Ascella Asterope Atlas Atria Avior Baten Kaitos Bellatrix Betelgeuse Bharani Canopus Capella Caph Castor Celaeno Deneb Denebola Diphda Dubhe Electra Elnath Eltanin Enif Fomalhaut Gacrux Gamma Cassiopeiae Gienah Ginan Hadar Hamal Imai Izar Kaus Australis Kaus Borealis Kaus Media Kepler-22 Kraz Maia Marfik Markab Megrez Meissa Menkalinan Menkar Menkent Merak Merope Mesarthim Methuselah Star Miaplacidus Mimosa Minkar Mintaka Mira Mirach Mirfak Mirzam Mizar Mu Cephei Naos Nunki Peacock Phecda Pleione Polaris Pollux Procyon Proxima Centauri Rasalhague Regulus Rho Ophiuchi Rigel Rigil Kentaurus Ruchbah Sabik Sadr Saiph Sargas Scheat Schedar Segin Seginus Shaula Sheratan Sirius Spica Stephenson 2-18 Suhail Taygeta Thuban Toliman Unukalhai UY Scuti Vega VV Cephei VX Sagittarii Wasat Wezen WOH G64 Zeta Reticuli Zubenelgenubi Zubeneschamali, Navi, Tsih, Gamma Cassiopeiae, γ Cas, 27 Cassiopeiae, HD 5394, HR 264, HIP 4427, SAO 11482, FK5 32, BD+59°144, GC 1117, GCRV 526, PPM 12597, AG+60 106, ALS 6407, JP11 439, PLX 185.00, MCW 46, IRAS 00536+6026, TYC 4017-2319-1, 2MASS J00564251+6043002, ADS 782, Gaia DR2 426558460877467776, UBV 833, AAVSO 0050+60, WDS 00567+6043, CCDM J00567+6043A. Both nebulae lie at an approximate distance of 610 light years. Während beim etwas helleren Nebel IC 63 der rötliche Emissionsanteil überwiegt, dominieren beim blasseren IC 59 die bläulichen Reflexionsanteile. Shell stars) oder Gamma-Cassiopeiae-Sterne (GCVS-Bezeichnung GCAS) bezeichnet, wobei sich die Helligkeit im Visuellen um bis 2,5 Magnituden ändert. High overhead in northern autumn evenings lies the W- shaped constellation Cassiopeia, in mythology the Queen and mother to Andromeda, to us brilliant against the background of the Milky Way and fully circumpolar from most of the United States and all of Canada. The nebula is also catalogued as IC 11 and Sharpless 184. Gamma Cassiopeiae. 4.8 – 5.5), Lambda Pavonis in Pavo (mag. Gamma Cassiopeiae lies at a distance of 550 light years from Earth. 4.00 – 4.26), and Kappa Canis Majoris (mag. Gamma Cassiopeiae is located in the northern constellation Cassiopeia. Amateur astronomy can be a rewarding and fascinating hobby. This celestial ghost makes the perfect backdrop for the upcoming feast of All … 495. Like its neighbour Caph, Gamma Cassiopeiae is an example of gravity darkening. Gamma Cassiopeiae, Caph, NGC 129, NGC 189 and IC 10, image: Wikisky. Cassiopeia is a constellation found in the northern sky. Other than Gamma Cassiopeiae, these include Rho Cassiopeiae, a pulsating yellow hypergiant, V509 Cassiopeiae, a semiregular variable yellow hypergiant, Kappa Cassiopeiae, a variable blue supergiant, Omicron Cassiopeiae, a Gamma Cassiopeiae variable, and AO Cassiopeiae (Pearce’s Star), an eclipsing binary system consisting of two massive O-type stars distorted into ellipsoidal shapes by their close interaction. Mounts:Mesu 200 Mk2, Skywatcher EQ6R Pro. The binary nature of the star was confirmed in 2011. I have only Ha ‘detail’ on it . 4.92 – 5.39) in Canis Major. The emission-reflection nebulae IC 59 and IC 63 lie only 3-4 light years from the star. Pictures, altitude charts, data sheet and sky map for Gamma Cassiopeiae Nebula - - Bright nebula in Cassiopeia Constellation The ultraviolet radiation energizes the electrons within the nebula, and the electrons release the energy as hydrogen-alpha emission, which gives the nebula its red glow. It exhibits irregular variations in brightness, which ranges between 2.20 magnitudes and 3.40 magnitudes. Gamma Cassiopeiae is an eruptive variable star. The variations … The star Gamma Cassiopeiae unleashes the energy of 34,000 Suns, it adds. Reply . Seen from locations south of the equator (where the asterism is visible), it always appears inverted. The star is a known X-ray source. Even though it is a very young star, Gamma Cassiopeiae has already left the main sequence and begun its death process. Since there were no signs of a companion in the spectrum of Gamma Cassiopeiae, the system was adopted as a single-lined spectroscopic binary, that is to say, a system where the spectrum of only one component is seen and the presence of a companion is inferred from spectral lines periodically shifting towards the blue, then towards red and then towards blue again, indicating that the components are moving toward us and away from us, i.e. With a temperature of 25,000 K, a mass 17 times that of the Sun, luminosity 34,000 times solar, and an age of 8 million years, Gamma Cassiopeiae is the youngest, most luminous, hottest and most massive of the five stars that form the W. At a distance of 550 light years, it is also by far the most distant. At dusk, it will become visible around 19:33 (PDT), 47° above your north-eastern horizon. Segin, the other hot class B star in the asterism, has 9.2 solar masses, a temperature of 15,174 K, a luminosity 2,500 times that of the Sun and it is about 140 light years closer to us. It will then reach its highest point in the sky at 20:44, 65° above your northern horizon. Gamma Cassiopeiae star is a fast-spinning eruptive variable with a BeIII to BeIV spectrum that, at irregular intervals, shows a series of strong, sharp absorption lines accompanied by a fading due the ejection of matter from the equatorial region of the star. 3.95), Kappa Cassiopeiae (mag. Gamma Cassiopeiae is an exceptionally fast spinner, with a projected rotational velocity of 432 km/s. Gamma Cassiopeiae (γ Cas) is a spectroscopic binary star located in the constellation Cassiopeia. 99% Upvoted. The other three stars are much cooler, less luminous, less massive, considerably older, and much closer to us. High overhead in northern autumn evenings lies the W- shaped constellation Cassiopeia, in mythology the Queen and mother to Andromeda, to us brilliant against the background of the Milky Way and fully circumpolar from most of the United States and all of Canada. NGC 189 has an apparent magnitude of 8.8 and occupies 3.7’ of the sky, and NGC 129 shines at magnitude 6.5 and has an apparent size of 21’. The periods when the disks are particularly strong and the brightness increases are called shell events. GAMMA CAS (Gamma Cassiopeiae). Cluster), NGC 7789 (the White Rose Cluster), NGC 663, and NGC 654, and the irregular starburst galaxy IC 10, one of our neighbours in the Local Group. You can follow any … Their brightness varies with an amplitude of about a magnitude. From Virginia Beach , Gamma Cassiopeiae Nebula is visible all night. The component B has a similar space velocity to Gamma Cassiopeiae and may be a physical companion at a separation of at least 370 light years, orbiting with a period of at least 1,500 years. Gamma Cassiopeiae, NGC 225, IC 59, IC 63 and NGC 189, image: Wikisky. Dies entspricht einer Oberflächentemperatur von circa 6800 K, während ein ungestörter B-Stern eine Oberflächentemperatur von 10.000 bis 25.000 K zeigt. With an apparent magnitude that varies from 1.6 to 3.0, it sometimes outshines its neighbours Schedar, Caph and Segin to become the constellation’s brightest star. With a declination of +60° 43’, the star is visible from all locations north of the equator, but cannot be seen south of the latitude 29° S. Observers in southern latitudes where the star rises can only see it appear low above the horizon at certain times of year. The decretion disk causes both brightness variations and hydrogen emission lines in the star’s spectrum. Bright Star, Double Star. ISO 1000. Gamma Cassiopeiae and other variables of this type are eruptive stars. The nebula is being blasted by a torrent of radiation from a nearby, blue-giant star called Gamma Cassiopeiae, which can be easily seen with the unaided eye at the center of the distinctive "W" asterism that forms the constellation. Find Gamma Cassiopeiae Nebulae stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Close. From Redmond , Gamma Cassiopeiae Nebula is visible all night because it is circumpolar. With a physical radius of 48 light years, it stretches across 35’ of the sky and is associated with the open … Although it is a fairly bright star with an apparent visual magnitude that varies from 1.6 to 3.0. The radiation of Gamma Cassiopeiae is so powerful that it even affects IC 63, sometimes nicknamed the Ghost Nebula, that lies several light years away from … If you would like to get a little bit more serious with this hobby, you would need to have acces to some astronomy equipment and accessories, including telescopes, telescope mounts, eyepieces, filters, and software or star charts. Their brightness varies with an amplitude of about a magnitude. Gamma Cassiopeiae is an eruptive variable star, whose apparent magnitude changes irregularly between +1.6 and +3.0. Additionally, they have very low surface brightness and can only be spotted in 10-inch or larger telescopes if observing conditions are not ideal. It has a wide (mag. 3.66), 50 Cassiopeiae (mag. Im Ausbruch kann sich der Spektraltyp bis zu F5 abkühlen. It is one of the 48 Greek constellations, first listed by the Greek astronomer Claudius Ptolemy in the 2nd century CE. Guiding telescopes or lenses:Celestron OAG Deluxe, Teleskop Service TSOAG9 Off-Axis Guider. IC59 & IC63: The Gamma Cassiopeiae Nebulae Gamma Cassiopeiae, the middle star of the famous W-shaped constellation, is a hot giant with a surface temperature of 25,000°C (compared to 5,500°C for our Sun) and a mass fifteen times our Sun's. Gamma Cassiopeiae Nebula Contains: IC 63 , gamma Cas nebula , IC 59 , The star Navi (γCas) Gamma Cassiopeiae itself usually shines at magnitude 2.25, but it has been observed to fade to magnitude 3.0 and brighten to magnitude 1.6. Many Be stars are variable in brightness. It was the first star to be identified as a Be star, by the Italian astronomer Angelo Secchi in 1866. IC 59 und IC 63 sind gemischte Emissions-Reflexionsnebel die vom hellen Stern Gamma Cassiopeiae (der mittlere Stern des Himmels-W der Kassiopeia) zum Leuchten angeregt werden. Maybe the ISO is too high. Made with 15cm F6.2 newton captured with 350d mod and Astronomic's CLS filter, against light polution exposer 6x400 seconds guide with PHD and … share. It was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy. Gamma Cassiopeiae has a luminosity 40,000 times that of our Sun. Vermutlich handelt es sich um ein enges Doppelsternsystem, bestehend aus einem Riesenstern und einem Neutronenstern. About 550 light-years away in the constellation of Cassiopeia lies IC 63, a stunning and slightly eerie nebula. It is the prototype of the class of Gamma Cassiopeiae variable stars. It is the only known starburst galaxy in the Local Group. Please join me with my adventure through a starry night sky. 5 months ago. The open clusters NGC 189 and NGC 129 appear in the area between Gamma Cassiopeiae and its bright neighbour Caph, the rightmost star of the W asterism. Gamma Cassiopeiae ist ein unregelmäßig veränderlicher Stern der Spektralklasse B0 in 800 Lichtjahren Entfernung. Schedar can be used to find the bright emission nebula NGC 281, popularly known as the Pacman Nebula. Measurements of the star’s radial velocities led to the discovery that Gamma Cassiopeiae was a spectroscopic binary system. A study of the star’s X-ray flux found variations with a period interpreted as the star’s rotational period (1.21 days), indicating that the X-rays did not come from a companion. With an apparent magnitude of 10, they are quite faint. Gamma Cassiopeiae does not have a formal name. Stars classified as Gamma Cassiopeiae variables include Gomeisa in Canis Minor (mag. This asterism is formed by five bright stars; Epsilon, Ruchbah (Delta), Gamma, Schedar (Alpha Cassiopeiae) and Caph (Beta Cassiopeiae). Notable deep sky objects in the constellation include the neighbouring Heart and Soul nebulae (IC 1805 and IC 1848), two large emission nebulae 7,500 light years away, the emission nebulae NGC 281 (the Pacman Nebula) and NGC 7635 (the Bubble Nebula), the open clusters Messier 52, Messier 103, NGC 457 (the E.T. For more distant galaxies it might be more than 65 million years so you might be looking at an image when dinosaurs still lived on our planet Earth. Gamma Cassiopeia Region It has an apparent magnitude of 7.0 and lies at a distance of 2,143 light years. 10), also with this dominant variable star close who makes so difficult obtain all details and nuances. Gamma Cassiopeiae Nebula (IC63) « del : Sáb, 16-Nov-2019, UTC 22h.30m. The star was reported to be a binary with a period of 203.59 days in a study published in 2000. Im Maximum erreicht er eine Helligkeit von 1,6 mag und wird damit noch heller als Schedir. Gamma Cassiopeiae also has two visual companions, catalogued as components B and C. The first companion is a magnitude 11 star separated by about 2 arcseconds from the primary, and the second is a magnitude 13 star almost an arcsecond away from the primary. Cassiopeia constellation, image: Roberto Mura. Cassiopeia is home to many interesting stars. Gamma Cassiopeiae star. It has since been gradually brightening back to around +2.2. Guiding … The radiation of Gamma Cassiopeiae is so powerful that it even affects IC 63, sometimes nicknamed the Ghost Nebula, that lies several light years away from the star. From Redmond , Gamma Cassiopeiae Nebula is visible all night because it is circumpolar.It will be highest in the sky at 00:31, 76° above your northern horizon. Complex nebula to capture (only mag. The large open cluster NGC 225 stretches across 12 arcminutes northwest of the star. Gamma Cassiopeiae is a star at the center of the distinctive "W" asterism in the northern circumpolar constellation of Cassiopeia. Achernar was only recognized as a Be star in 1976. Nicknamed the Ghost of Cassiopeia or the Ghost Nebula, IC 63 is slowly being eroded away by the star’s radiation. 2020 Equipment: ATIK 460EX with EFW2, Skywatcher f5.5 Esprit 100 ED refractor, Avalon Linear mount, guiding with Lodestar X2/PHD. “The Ghost Nebula is part of a much larger nebulous region surrounding Gamma Cassiopeiae that measures approximately two degrees on the sky – … Wang Liang is a legendary charioteer represented by an asterism formed by Caph, Schedar, Achird, Kappa Cassiopeiae and Lambda Cassiopeiae. HUBBLE TELESCOPE SPOTS A 'SPACE INVADER' Der Stern ist eine starke Röntgenquelle am Himmel. Gamma Cas is the middle star of Cassiopeia, a 2nd magnitude star that is the prototype for a class of eruptive variable stars. The study suggested that the companion had a mass between 0.7 and 1.9 solar masses and was not responsible for the X-ray emission detected from the star. However the final results would also depend on the quality of skies you use and which should be affected by light polution as little as possible and your processing skils. Date: October 2014 Location: Roztoki Gorne, Bieszczady Mountains CCD: Canon 6D (modified) Scope: Takahashi Epsilon 130D @F3.3 Mount: AP600GTO Exposure 5 hours 20 minutes Processing: MaximDL, Photoshop If they are believed to be pulsating stars, they are classified as Lambda Eridani variables. The deep sky objects around Cassiopeia’s W, image: Wikisky. The bright star near the center, Navi, is part of the constellation Cassiopeia, and it ionizes the nearby gases in the emissions and reflections nebula cataloged as IC 63 and IC 59. 1.6 – 3.0), Schedar (Alpha Cas, mag. Date: November 2nd, 3rd, 4th, 15-16th. Gamma Cassiopeiae location, image: Wikisky. The X-ray radiation emanating from the star is about 10 times stronger than the radiation detected from other Be or B stars. It exhibits irregular variations in brightness, which ranges between 2.20 magnitudes and 3.40 magnitudes. Gamma Cassiopeiae problem - posted in DSLR & Digital Camera Astro Imaging & Processing: What am I doing wrong processing this image ... the star Navi became enormous and I cant figure out what to do about it, other than cropping it out entirely ... this is 20 images at 2:30 each. The variations in brightness are caused by shell episodes, where shell features appear in the star’s spectrum, significantly increasing or decreasing brightness. Thanks to astrophotography you can see things not not available to an open eye, a colorfull wonders of the Universe. It will become visible around 17:55 (EST) as the dusk sky fades, 54° above your north-eastern horizon. Schedar and other bright stars of Cassiopeia lie in a rich field of the Milky Way and can be used to find a number of bright deep sky objects. IC 59 / gamma Cas nebula IC 63 / gamma Cas nebula The star γCas —— If you would like to have other images solved, please submit them to the astrometry group. Like other exceptionally massive stars, it has evolved very quickly and will not live a very long life. Gamma Cassiopeia Nebula – kaufen Sie dieses Foto und finden Sie ähnliche Bilder auf Adobe Stock Jul 12, 2020 - A 9.8 hour exposure of the nebula surrounding the star Gamma Cassiopeiae Equipment: Mount: iOptron CEM60 Telescope: 8" Orion Newtonian Astrograph 800mm f/3.9 Guide scope: Orion CT80 Camera: Modified Canon T5 Guide Camera: Lodestar x2 Accessories: Baader MPCC III, Astronomik CLS-CCD Clip-in Filter Software: APT, PHD2, DSS, PixInstight, Lightroom Während beim etwas helleren Nebel IC 63 der rötliche Emissionsanteil überwiegt, dominieren beim blasseren IC 59 die bläulichen Reflexionsanteile. The best time of year to see the stars and deep sky objects of Cassiopeia is during the month of November, when the constellation is prominent in the evening sky. Gamma Cassiopeiae is a prototype for its own class of variable stars known as the Gamma Cassiopeiae variables. The star’s estimated age is only 8 million years. Gamma Cassiopeiae Nebula (IC63) Technical card Imaging telescopes or lenses:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo, Altair Astro RC250-TT 10" RC Truss Tube. The star rotates very rapidly and bulges outward along the equator. The companion is believed to be more evolved than the primary and to have transferred some of its mass to the brighter star during an earlier evolution phase. At its brightest, the star outshines both Schedar (mag. 09.20.2013 at 5:14 am. Cassiopeia is one of the 88 modern constellationswe see today. The Ghost Nebula (IC 63), image: ESA/Hubble, NASA (CC BY 4.0). Typically, they are fast spinning class B subgiants, giants or sometimes main sequence stars, that show brightness variations with larger amplitudes than other Be stars. The Sun with its planet system, moons travelling around the planets or our gests - comets visiting us from time to time. 2.24), Caph (Beta Cas, mag. The Gamma Cassiopeiae nebula... IC63 and IC59: Object: IC59, 63 (Sharpless 2-185) Type: Emission and reflection nebulae Constellation: Cassiopeia Distance: 600 light years. Gamma Cassiopeiae has a mass 17 times that of the Sun and, as it ended its main sequence lifetime, it has expanded to a size of 10 solar radii. Please take a deep breath and dive in together with me if you have not done it already. Closer to Caph, the irregular galaxy IC 10 has an apparent magnitude of 10.4 and lies 2.2 million light years from the Sun. As a result, its equatorial radius is larger than its polar radius, giving the star a flattened shape. These lines are caused by a circumstellar disk of material lost from the star. Gamma Cassiopeiae is 70,000 times more luminous than the Sun and is surrounded by two faint reflection / emission nebulae, IC 59 and IC 63. Thousands of new, high … Despite their almost identical proximity to Gamma Cassiopeia and similar appearance, Sh2-185, or IC 59 (lower) and IC 63 (above and right) are actually quite different in … The colours in the eerie nebula showcase how the nebula is affected by the powerful radiation from the distant star. 2.68), Segin (Epsilon Cas, mag. save hide report. The “e” suffix indicates hydrogen emission lines in the star’s spectrum. In winter, it appears inverted. It lies near several other constellations associated with the myth of Perseus: Perseus, Andromeda, Cepheus and Pegasus. From Virginia Beach , Gamma Cassiopeiae Nebula is visible all night.It will become visible around 17:55 (EST) as the dusk sky fades, 54° above your north-eastern horizon. Officially known as IC 63, the Nebula was photographed by Hubble in August 2016. The Cassiopeia constellation gets its name … The bright star Gamma Cas is attended by two large wisps of nebulosity, IC 59 and IC 63. The star is running out of the supply of hydrogen in its core and is on its way to evolving into a giant. Also known as the ghost of Cassiopeia, IC 63 is being shaped by radiation from a nearby unpredictably variable star, Gamma Cassiopeiae, which is slowly eroding away the ghostly cloud of dust and gas. Navi occasionally outshines the brightest star in Cassiopeia – Alpha Cassiopeiae, reaching a magnitude of 1.6, due to its variability in brightness. Complex nebula to capture (only mag. What the astrophotography does? 2.84 – 2.92), Pleione in the Pleiades cluster in Taurus (mag. Gamma Cassiopeiae Nebula (IC63) DSOs. Gamma Cassiopeiae underwent two such events in 1935-36 and 1939-40, brightening to above magnitude +2.0, then rapidly dimming to magnitude +3.4. It will be highest in the sky at 00:31, 76° above your northern horizon. A picture of our closest galaxy the Great Galaxy in Andromeda presents how it looked 2.3 million years ago as the light needed to travel this amount of time to be registered by a camera! Cassiopeia also contains two well-known supernova remnants: Tycho’s Star (3C 10), the remnant of a Type Ia supernova (SN 1572) observed in November 1572, and Cassiopeia A, the brightest extrasolar radio source in the sky. The only brighter star without a formally approved name is Gamma Velorum (informally known as Regor). Aufgrund ihrer geringen Flächenhelligkeit werden die beiden Nebel auch als Geisternebel (Ghost Nebula) oder … IC 59 lies a bit farther from the star and shows less hydrogen-alpha emission and more reflected blue light. These stars exhibit irregular brightness variations over periods of decades. Gamma Cassiopeiae forms Cassiopeia’s W asterism with Segin (Epsilon Cassiopeiae), Ruchbah (Delta Cassiopeiae), Schedar (Alpha Cassiopeiae) and Caph (Beta Cassiopeiae). A more advanced amateur astrophotography could require some more sophisticated and expensive equatorial mounts and potentially cooled CCD cameras. Gamma Cassiopeiae is classified as a Be star, a non-supergiant blue class B star showing Balmer (hydrogen) emission lines in its spectrum. They have decretion disks around the equatorial region, which sometimes reform or disappear. 5 comments. 3.44), Fulu (Zeta Cas, mag. This is the gamma-Cassiopeia Nebula. The name Navi (Ivan spelled backwards) was given to it by the American astronaut Virgil Ivan “Gus” Grissom, commander of the Apollo 1 mission, which ended with the deaths of all three crew members during a pre-launch test on January 27, 1967. Gamma Cassiopeiae is a prototype for its own class of variable stars known as the Gamma Cassiopeiae variables. At dusk, it will become visible around 19:33 (PDT), 47° above your north-eastern horizon. Stretching across an area of 598 square degrees, it is the 25th constellation in size. 10), also with this dominant variable star close who makes so difficult obtain all details and nuances. Gamma Cassiopeiae is a star at the center of the distinctive "W" asterism in the northern circumpolar constellation of Cassiopeia. Reply . Imaging cameras:ZWO ASI183MM-Cool, ZWO ASI1600MM-Cool. One of the stars in the nebula is Gamma Cassiopeiae - is a blue-white subgiant variable star which shines a staggering 65,000 times brighter than our Sun. Gamma Cassiopeiae is an eruptive variable star that serves as a prototype of a class of stars, the Gamma Cassiopeiae variable stars. Thanks for any advice. Still in the Dark. 10), also with this dominant variable star close who makes so difficult obtain all details and nuances. Gamma Cassiopeiae itself usually shines at magnitude 2.25, but it has been observed to fade to magnitude 3.0 and brighten to magnitude 1.6. The asterism is part of the Legs mansion, which represents the tail of the White Tiger of the West. Circumpolar in the northern hemisphere, Cassiopeia has been known to observers since ancient times.

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