C/2002 V1 (NEAT)

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C/2002 V1
Discovery
Semi-major axis
~1,100 AU[2] (a)
Eccentricity0.999017
Orbital period~37,000 yr[2][3]
Inclination81.706°
Last perihelionFebruary 18, 2003
Next perihelionunknown

Comet C/2002 V1 (NEAT) is a non-periodic comet that appeared in November 2002.[1] The comet peaked with an apparent magnitude of approximately –0.5, making it the eighth-brightest comet seen since 1935.[4] It was seen by SOHO in February 2003. At perihelion the comet was only 0.099258 astronomical units (14,848,800 kilometres; 9,226,600 miles) from the Sun. (Slight controversy arose when the comet failed to break up when it approached the Sun, as expected by some scientists if it were a small comet.)[5]

The comet was hit by a

LASCO's field of view, on February 20, 2003, an object was seen at the bottom of a single frame.[10] Although technicians dismissed this as a software bug
, rumours persisted that the object had been expelled from the Sun.

The orbit of a long-period comet is properly obtained when the

apoapsis distance of 2,230 AU, and a period of approximately 37,000 years.[2]

References

  1. ^
    IAU Minor Planet Center
    . 2002-11-07. Retrieved 2011-04-07.
  2. ^
    barycentric coordinates
    . Select Ephemeris Type:Elements and Center:@0)
  3. ^ Kronk, Gary W. "C/2002 V1 (NEAT)". Cometography. p. 1. Archived from the original on 2008-05-11. Retrieved 2008-08-05.
  4. Harvard. 2009-02-12. p. 1. Archived from the original
    on 2011-12-28. Retrieved 2011-04-07.
  5. ^ a b Britt, Robert Roy (28 February 2003). "Alleged NASA Cover-up of Menacing 'NEAT' Comet Threat is Pure Bunk, Experts Say". Space.com. Retrieved 2008-08-05. (Yahoo Groups)
  6. ^ Britt, Robert Roy (18 February 2003). "Amazing Live Images: Sungrazing Comet Possibly Hit by Solar Eruption". Space.com. Retrieved 2008-08-05. (A solar eruption, called a coronal mass ejection (CME), appears to have hit the comet Monday, Brekke said. Scientists think they observed a kink propagating down the comet's ion tail.)
  7. ^ "Big comet, big CME... big coincidence?". Sungrazing Comets. October 4, 2011. Retrieved 2011-10-04.
  8. ^ "56 CME in 2003/02" (At 05:57:07). Solar Influences Data Analysis Center (SIDC / CACTus catalogue). 13 September 2010. Retrieved 2011-10-07. (CME rate)
  9. ^ Horizons output. "Observer Table for Comet C/2002 V1 (NEAT)". Retrieved 2011-09-07. (Observer Location:500) (APOD)
  10. ^ SOHO C3 image from 2003-Feb-20 23:42

External links

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