Astronomers using ESO’s Very Large Telescope in Chile have captured the most detailed image ever taken of the Medusa Nebula. The X-ray emission from this star is about 10^27 erg/s, which is roughly the same as the X-ray emission from the Sun. The formation resembles a person’s head surrounded by a parka hood. Best viewing is during February. Alternatively, it may be a star that has passed through the asymptotic giant branch stage and possesses a detached shell of dust. Because Epsilon Geminorum is located near the ecliptic it can be occulted by the Moon or a planet. Tonight (2015 December 13), the Geminds reach their peak and could be quite spectacular. All the red dwarfs in the Castor system have emissions lines in their spectra, and all are Flare stars. 1900AT - Eridanus League breaks up. The traditional name Alhena is derived from the Arabic ‘Al Han’ah,’ ‘the brand’ (on the neck of the camel). This four-panel graphic shows the two pulsars observed by Chandra. They also were associated in ‘Al Nuḥātai,’ the dual form of ‘Al Nuḥāt,’ ‘a Camel’s Hump.’. Once an A-type main sequence star, Pollux has exhausted the hydrogen at its core and evolved into a giant star with a stellar classification of K0 III. Between the two stars are several faint areas of nebulosity. IC 443 (also known as the Jellyfish Nebula and Sharpless 248 (Sh2-248)) may be the remains of a supernova that occurred 3,000 - 30,000 years ago, and it is one of the best-studied cases of supernova remnants interacting with surrounding molecular clouds: IC 443: What Spawned the Jellyfish Nebula? The Arabic name once applied to an asterism formed by Gamma Geminorum with Tejat (Mu Geminorum), Nu Geminorum, Propus (Eta Geminorum), and Alzirr (Xi Geminorum). Its name is both a contraction of ‘Gemini gamma-ray source’, and a transcription of the words ‘gh'è minga,’ ‘it’s not there’ in the Lombard dialect of Milan. Bintang ini berada pada jarak 58,7 tahun cahaya (18,0 parsec) dari Matahari.. Etimologi. These snakes are represented by the serpentine filaments of glowing gas in this nebula. It has about 162% of the Sun’s mass and is radiating more than 11 times the luminosity of the Sun. All three of the visual components are spectroscopic binaries and Castor is a complex multiple star system made up of six individual stars. Alhena marks the foot of Pollux, the southern twin of Gemini. Theta Geminorum estimated radius has been calculated as being 5.00 times bigger than the Sun. Mebsuta comes from a phrase referring to the outstretched paw. In certain cases, pulsars generate extensive clouds of high-energy particles called pulsar wind nebulas. Chandra observations have revealed steady X-ray emission from extensive clouds of high-energy particles, called pulsar wind nebulas, associated with both types of pulsars. Pulsars are rapidly rotating, highly magnetized, neutron stars born in supernova explosions triggered by the collapse of massive stars. The two red dwarfs of Castor C are almost identical, with masses around a half M☉ and luminosities less than 10% of the Sun. The asterism is formed by Alhena with Tejat (Mu Geminorum), Nu Geminorum, Alzirr (Xi Geminorum), Mebsuta (Epsilon Geminorum), 36 Geminorum, Mekbuda (Zeta Geminorum), and Lambda Geminorum. NASA’s Chandra X-ray Observatory has taken deep exposures of two nearby energetic pulsars flying through the Milky Way galaxy. But who knows, as the scholarship on it is lacking, as for that matter is the … In this Hubble telescope image, the ‘parka’ is really a disk of material embellished with a ring of comet-shaped objects, with their tails streaming away from the central, dying star. The properties of their red dwarf companions are difficult to determine, but are both thought to have less than half the mass of the Sun. Gemini is also home to many interesting deep sky objects. Tau Geminorum is radiating 224 as much luminosity as the Sun from its expanded outer atmosphere at an effective temperature of 4,528 K, giving it the characteristic orange-hued glow of a K-type star. It is located northeast of Orion, and between Taurus and Cancer on the elliptic. The mass of M35 has been computed using a statistical technique based on proper motion velocities of its stars. Castor is a double star . Delta Geminorum is a subgiant star with the stellar classification F0 IV. These two deep Chandra images have, therefore, exposed the spin orientation of these pulsars, helping to explain the presence, and absence, of the radio and gamma-ray pulses. They later realized that it was simply a rare wavelength of radiation from an ionized form of the familiar element oxygen. Alzirr has a stellar classification of F5 IV-V, which is … This is the last phase in the transformation of stars like the Sun before ending their active lives as white dwarfs. 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