8P/Tuttle

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8P/Tuttle
contact binary[4]

8P/Tuttle (also known as Tuttle's Comet or Comet Tuttle) is a

solar elongation of 26 degrees at approximately apparent magnitude 9.[5] Two weeks later, on September 12, 2021, it was about 1.8 AU (270 million km
) from Earth which is about as far from Earth as the comet can get when the comet is near perihelion.

Comet 8P/Tuttle is responsible for the Ursid meteor shower in late December.[6]

2008 perihelion

Under dark skies, the comet was a naked-eye object.

M33. On January 1, 2008, it passed Earth at a distance of 0.25282 AU (37,821,000 km; 23,501,000 mi).[4]

Predictions that the 2007 Ursid meteor shower could have possibly been stronger than usual due to the return of the comet,[7] did not appear to materialize, as counts were in the range of normal distribution.

Contact binary

contact binary.[8][9] The comet nucleus is estimated at about 4.5 km in diameter, using the equivalent diameter of a sphere having a volume equal to the sum of a 3 km and 4 km sphere.[4]

Additional images

Animation of 8P/Tuttle from 2005 to 2025
  Sun ·   Venus ·   Earth ·   Mars ·   Jupiter ·   Saturn ·   8P/Tuttle
  • 8P/Tuttle on December 3, 2007 from Mount Laguna, California
    8P/Tuttle on December 3, 2007 from
    Mount Laguna, California
  • 8P/Tuttle about 1.2 degrees from M33 on December 30, 2007.
    8P/Tuttle about 1.2 degrees from M33 on December 30, 2007.
  • 8P/Tuttle on Feb 2, 2008 from the Red Sea coast of Egypt.
    8P/Tuttle on Feb 2, 2008 from the Red Sea coast of Egypt.

References

  1. ^ a b "8P/Tuttle Orbit". Minor Planet Center. Retrieved January 13, 2021.
  2. ^ Kinoshita, Kazuo (January 24, 2008). "8P/Tuttle". Comet Orbits.
  3. ^ "Horizons Batch for 8P/Tuttle (90000179) on 2035-Apr-18" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved September 12, 2021. (JPL K215/14 Soln.date: 2021-Sep-07)
  4. ^ a b c d e "JPL Small-Body Database Browser: 8P/Tuttle". NASA/Jet Propulsion Laboratory. June 6, 2008. Retrieved February 25, 2010.
  5. ^ Seiichi Yoshida (June 28, 2020). "8P/Tuttle". Seiichi Yoshida's Comet Catalog. Retrieved July 20, 2020.
  6. ^ "Meteor Streams". NASA.gov. Retrieved July 28, 2014.
  7. Bibcode:2007JIMO...35..125J
    .
  8. Science
    . Retrieved October 25, 2008.
  9. ^ Harmon, J. K.; Nolan, M. C.; Howell, E. S.; Giorgini, J. D. (2008). Comet 8P/Tuttle: Arecibo Radar Observations of the First Bilobate Comet (PDF). 10th Asteroids, Comets, Meteors. 13–18 July 2008. Baltimore, Maryland. Lunar and Planetary Institute.

External links


Numbered comets
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