185P/Petriew
Sign in to save185P/Petriew is a periodic comet with an orbital period of 5.5 years. It was discovered by amateur astronomer Vance Avery Petriew on 18 August 2001.
Wikidata facts
- Instance of
- near-Earth object
- Parent body
- Sun
- Orbital period
- 1993.939021137476
Show 13 more facts
- time of discovery or invention
- 2001-08-18
- provisional designation
- 185P/2001 Q2
- absolute magnitude
- 13.6
- orbital eccentricity
- 0.6987949924980911
- semi-major axis of an orbit
- 3.100337431869106
- periapsis
- 0.9338371594245832
- apoapsis
- 5.266837704313629
- orbital inclination
- 13.99731602086706
- longitude of ascending node
- 214.1008222365307
- argument of periapsis
- 181.9375576890696
- mean anomaly
- 176.384776561173
- time of periapsis
- 2456152.554198
- epoch
- April 17, 2015
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Encyclopedic overview
4 sectionsContents
- Observational history
- Meteor showers
- References
- External links
185P/Petriew is a periodic comet with an orbital period of 5.5 years. It was discovered by amateur astronomer Vance Avery Petriew on 18 August 2001.
== Observational history == Vance Avery Petriew discovered the comet visually with a 0.51-m reflector telescope during a star party in Cypress Hills, Canada, on 18 August 2001, while he was searching for the Crab Nebula. He became the third Canadian amateur astronomer to discover a comet. Petriew estimated that the comet had an apparent magnitude of 11, a coma about three arcminutes across and no tail. For the discovery V. A. Petriew was awarded the Edgar Wilson Award in 2002. The comet was also observed by other participants of the party. Alan Hale imaged the comet with a CCD on 19 August and estimated the comet had an apparent magnitude of about 13.
Excerpted from Wikipedia’s “185P/Petriew” article, available under the CC BY-SA 4.0 licence.