289P/Blanpain
Sign in to saveAlso known as D/1819 W1, 2003 WY25
289P/Blanpain, formerly D/1819 W1 (Blanpain) is a short-period comet with an orbital period of 5.2 years. It was discovered by Jean-Jacques Blanpain on November 28, 1819 but was considered lost until it was recovered in 2013. It was last observed in 2020.
Key facts
- Comet.name
- 289P/Blanpain
- Comet.image
- 289P 2020-01-11 NEOWISE image 3-color.png
- Comet.discoverer
- Jean-Jacques Blanpain (Marseille, France)
- Comet.discovery_date
- 1819 November 28/November 2003
- Comet.designations
- D/1819 W1;
- Comet.epoch
- 1819 November 22
- Comet.semimajor
- 2.993 AU
- Comet.perihelion
- 0.891 AU
- Comet.aphelion
- 5.094 AU
- Comet.eccentricity
- 0.702
- Comet.period
- 5.18 yr
- Comet.inclination
- 9.23°
- Comet.rotation
- hours
- Comet.M1
- 22.0
- Comet.last_p
- 2025-04-142019-Dec-202014-08-282009-04-30
- Comet.next_p
- 2030
via Wikipedia infobox
Wikidata facts
- Instance of
- near-Earth object
- Parent body
- Sun
- Child body
- Phoenicids
- Orbital period
- 1941.181293561119
- Image
- 289P 2020-01-11 NEOWISE image 3-color.png
Show 13 more facts
- time of discovery or invention
- 1819-12-14
- provisional designation
- 289P/1819 W1
- time of periapsis
- 2458838.4924157336
- absolute magnitude
- 22.0
- orbital eccentricity
- 0.6851400860396115
- semi-major axis of an orbit
- 3.045405402085011
- periapsis
- 0.9588760828749887
- apoapsis
- 5.131934721295033
- orbital inclination
- 5.897387767198045
- longitude of ascending node
- 68.92400393987324
- argument of periapsis
- 9.849289733559452
- mean anomaly
- 342.7543592407289
- epoch
- September 19, 2019
Sources (2)
via Wikidata · CC0
~5 min read
Encyclopedic overview
6 sectionsContents
- Observational history
- Scientific results
- Exploration proposals
- Source of Phoenicids
- References
- External links
289P/Blanpain, formerly D/1819 W1 (Blanpain) is a short-period comet with an orbital period of 5.2 years. It was discovered by Jean-Jacques Blanpain on November 28, 1819 but was considered lost until it was recovered in 2013. It was last observed in 2020.
== Observational history == The comet was discovered by Jean-Jacques Blanpain on November 28, 1819. Blanpain described the comet as having a "very small and confused nucleus". Another independent discovery was made on December 5 of that year by J. L. Pons. Following this the comet was lost, and was given the designation 'D' (Disappeared or Dead).
Excerpted from Wikipedia’s “289P/Blanpain” article, available under the CC BY-SA 4.0 licence.