enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Comet tail - Wikipedia

    en.wikipedia.org/wiki/Comet_tail

    While the solid nucleus of comets is generally less than 30 km across, the coma may be larger than the Sun, and ion tails have been observed to extend 3.8 astronomical units (570 Gm; 350 × 10 ^ 6 mi). [6] The Ulysses spacecraft made an unexpected pass through the tail of the comet C/2006 P1 (Comet McNaught), on February 3, 2007. [7]

  3. Coma (comet) - Wikipedia

    en.wikipedia.org/wiki/Coma_(comet)

    The coma is the nebulous envelope around the nucleus of a comet, formed when the comet passes near the Sun in its highly elliptical orbit. As the comet warms, parts of it sublimate ; [ 1 ] this gives a comet a diffuse appearance when viewed through telescopes and distinguishes it from stars .

  4. Comet nucleus - Wikipedia

    en.wikipedia.org/wiki/Comet_nucleus

    The nucleus of Comet Tempel 1. 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 atmosphere surrounding the nucleus known as the coma.

  5. Comet - Wikipedia

    en.wikipedia.org/wiki/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 surrounding the nucleus, and sometimes a tail of gas and dust gas blown out from the coma.

  6. A rare 'Devil Comet' will be visible in Wisconsin for the ...

    www.aol.com/rare-devil-comet-visible-wisconsin...

    The Devil Comet has a good chance of being the most visible on Sunday, April 21. This is when the comet will reach its perihelion: the closest point to the sun on its orbital path.

  7. C/1988 A1 (Liller) - Wikipedia

    en.wikipedia.org/wiki/C/1988_A1_(Liller)

    The presence of the comet was confirmed by T. Cragg and R. H. McNaught. They estimated visually that the comet had an apparent magnitude of 10.2 and a coma 6 arcminutes across. [1] Upon discovery the comet was located in the constellation of Sculptor, at a solar elongation of 60°, and was located 1.62 AU from the Sun. [4]

  8. C/1900 O1 (Borrelly–Brooks) - Wikipedia

    en.wikipedia.org/wiki/C/1900_O1_(Borrelly–Brooks)

    French astronomer Alphonse Borrelly was the first person to discover the comet on the early morning of 24 July 1900, while William Robert Brooks independently spotted the same comet about 15 minutes later. [4] They reported the comet as a 9th-magnitude object with a short tail located within the constellation Aries.

  9. C/2007 N3 (Lulin) - Wikipedia

    en.wikipedia.org/wiki/C/2007_N3_(Lulin)

    The comet was first photographed by astronomer Lin Chi-Sheng (林啟生) with a 0.41-metre (16 in) telescope at the Lulin Observatory in Nantou, Taiwan on July 11, 2007. . However, it was the 19-year-old Ye Quanzhi (葉泉志) from Sun Yat-sen University in China, who identified the new object from three of the photographs taken by Lin