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Schwassmann–Wachmann (73P/1930 J1, Schwassmann–Wachmann 3)
{{disambiguation ...
There are several comets named Schwassmann–Wachmann, the discovery of which is co-credited to German astronomers Arnold Schwassmann and Arno Arthur Wachmann: * 29P/Schwassmann–Wachmann (29P/1927 V1, Schwassmann–Wachmann 1) * 31P/Schwassmann–Wachmann (31P/1929 B1, Schwassmann–Wachmann 2) * 73P/Schwassmann–Wachmann 73P/Schwassmann–Wachmann, also known as Schwassmann–Wachmann 3 or SW3 for short, is a periodic comet that has a 5.4 year orbital period and that has been actively Comet#Breakup and collisions, disintegrating since 1995. When it came to perihe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
29P/Schwassmann–Wachmann
Comet 29P/Schwassmann–Wachmann, also known as Schwassmann–Wachmann 1, was discovered on November 15, 1927, by Arnold Schwassmann and Arno Arthur Wachmann at the Hamburg Observatory in Bergedorf, Germany. Discovery It was discovered photographically, when the comet was in outburst and the magnitude was about 13. Precovery images of the comet from March 4, 1902, were found in 1931 and showed the comet at 12th magnitude. Orbit and physical properties The comet reached its most recent perihelion on March 7, 2019. It also came to its last opposition in late December 2022. The comet is a member of a class of objects called "Centaurs", of which at least 500 are known. These are small icy bodies with orbits between those of Jupiter and Neptune. The Centaurs have been recently perturbed inward from the Kuiper belt, a disk of trans-Neptunian objects occupying a region extending from the orbit of Neptune to approximately 50 AU from the Sun. Frequent perturbations by Jupiter wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
31P/Schwassmann–Wachmann
31P/Schwassmann–Wachmann, also known as Schwassmann–Wachmann 2, is a periodic comet in the Solar System. It was discovered on January 17, 1929, at an apparent magnitude of 11.Cometography Home Page The comet has been seen at every apparition. The comet nucleus The nucleus is the solid, central part of a comet, formerly termed a ''dirty snowball'' or an ''icy dirtball''. A cometary nucleus is composed of rock, dust, and frozen gases. When heated by the Sun, the gases sublime and produce an atmosphe ... is estimated to be 6.2 kilometers in diameter. In 1929, the astronomer Anne Sewell Young identified the comet with an object that had been misidentified as the minor planet "Adelaide" ( A904 EB). References External links Orbital simulationfrom JPL (Java) Horizons Ephemeris– Seiichi Yoshida @ aerith.net Periodic comets 0031 * 19290117 {{comet-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comet
A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitationally unbound atmosphere or Coma (cometary), coma surrounding the nucleus, and sometimes a Comet tail, tail of gas and dust gas blown out from the coma. These phenomena are due to the effects of solar radiation and the outstreaming solar wind plasma acting upon the nucleus of the comet. Comet nuclei range from a few hundred meters to tens of kilometers across and are composed of loose collections of ice, dust, and small rocky particles. The coma may be up to 15 times Earth's diameter, while the tail may stretch beyond one astronomical unit. If sufficiently close and bright, a comet may be seen from Earth without the aid of a telescope and can Subtended angle, subtend an arc of up to 30° (60 Moons) across the sky. Comets have been observed and recorded since ancient times by many cultures and religion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Schwassmann
Friedrich Karl Arnold Schwassmann (25 March 1870 – 19 January 1964) was a German astronomer and a discoverer of 22 minor planets and 4 comets, who worked at Astrophysical Institute Potsdam#Foundation of the Astrophysical Observatory Potsdam .28AOP.29, AOP in Potsdam and at Bergedorf Observatory in Hamburg. He was co-discoverer with Arno Arthur Wachmann of the periodic comets 29P/Schwassmann–Wachmann, 31P/Schwassmann–Wachmann and 73P/Schwassmann–Wachmann, and with Arno Arthur Wachmann and Leslie Peltier of the non-periodic comet C/1930 D1 (Peltier–Schwassmann–Wachmann). The main-belt asteroid 989 Schwassmannia, discovered by himself in 1922, was later named in his honor (). List of discovered minor planets * 435 Ella - 11 September 1898 * 436 Patricia - 13 September 1898 * 442 Eichsfeldia - 15 February 1899 * 443 Photographica - 17 February 1899 * 446 Aeternitas - 27 October 1899 * 447 Valentine - 27 October 1899 * 448 Natalie - 27 October 1899 * 449 Hamburga - 31 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arno Arthur Wachmann
Arno Arthur Wachmann (8 March 1902 – 24 July 1990) was a German astronomer and discoverer of comets and minor planets, who worked for many years at the Bergedorf Observatory in Hamburg. Springer Link, Sept. 2007, p. 1188. With he co-discovered the periodic comets [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
