... The Comets Of SOHO . ... 25.02.2000 . ... Credit Copyright: SOHO Consortium , ESA , NASA Explanation: After four years of successful sun-gazing, the space-based SOlar and Heliospheric Observatory (SOHO) has also become the most successful comet-hunter in history, racking up 102 new comets. ... Discovered this year on February 4th, the comet at the bottom right holds the distinction of being SOHO comet number 100 . ... Publications with keywords: comet - sungrazer - SOHO . ... Little Planet Lovejoy ....

This negative photo shows the faint image of periodic comet Halley (in the circle) at the record heliocentric distance 18.82 AU (= 2,820 million km, about the distance of Uranus). ... They were cleaned to remove various sky and instrumental noise, shifted according to the predicted motion of the comet and then co-added. ... The position in the sky is less than 1 arcsec from that predicted on the basis of the comet's very well-determined orbit. ... Total exposure time: 13,500 seconds. ...

. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. Data and time of observation: April 27, 1997, 21:25 LT. Comet-Earth distance: 1.7 a.u. Time of exposure: 10 min. Field of view : 3 minutes of arc. Distance between shells, in average: 15 000 km. Diameter of bright coma in the picture center: of about 5 000 km. Last updated: January, 2005.

... COMETS . In 1999 18 periodical comets will return to perihelions. ... Perihelion Time . ... Perihelion Distance (a.u. * ) . True Distance (a.u. * ) . ... Jan.28 . ... 2.29 (Nov.17) . ... 1.3 (Apr.2 2000) . ... May be ~1.5 m near perihelion) . ... 11.6 m (Mar. 2000) . a.u. - astronomical unit: middle distance from Earth to Sun, equal 149.6 millions km. Jupiter comet family . Caturn comet family . ...

... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... Science Fiction . UFOs and Fringe Science . ... This close-up look at Comet ISON (C/2012 S1) is from NASAтАЩs Hubble Space Telescope. This image was captured on 10 April 2013, when the comet was at a distance of 386 million miles (slightly further than Jupiter) from the Sun. ... Image credit: NASA, ESA, J.-Y. Li (Planetary Science Institute), and the Hubble Comet ISON Imaging Science Team) . ...