22P/Kopff
Sign in to saveComet Kopff or 22P/Kopff is a Jupiter-family comet with a 6.36-year orbit around the Sun. Discovered on 23 August 1906, it was named after its discoverer, August Kopff. The comet was missed on its November 1912 return, but was recovered on June 1919 and has been seen at every apparition since. Close approaches to Jupiter in 1938 and 1943 decreased the perihelion distance and orbital period. 22P/Kopff’s last perihelion passage was 18 March 2022.
Key facts
- Comet.name
- 22P/Kopff
- Comet.image
- Comet 22P Kopff.jpg
- Comet.caption
- Comet Kopff photographed from a 14" reflector telescope on 27 June 2009
- Comet.discoverer
- August Kopff
- Comet.discovery_site
- Königstuhl Observatory
- Comet.discovery_date
- 23 August 1906
- Comet.mpc_name
- P/1906 Q1P/1919 O1
- Comet.epoch
- 31 March 2024 (JD 2460400.5)
- Comet.observation_arc
- 117.6 years
- Comet.obs
- 5,043
- Comet.perihelion
- 1.54 AU (epoch 2024)1.32 AU (real-world)
- Comet.aphelion
- 5.32 AU
- Comet.semimajor
- 3.43 AU
- Comet.eccentricity
- 0.551
- Comet.period
- 6.357 years
- Comet.inclination
- 4.753°
- Comet.asc_node
- 120.58°
- Comet.arg_peri
- 162.92°
via Wikipedia infobox
Wikidata facts
- Diameter
- 3.0
- Orbital period
- 2334.946016068254
- Image
- Comet 22P Kopff.jpg
Show 14 more facts
- time of discovery or invention
- 1906-08-22
- provisional designation
- 1906e
- absolute magnitude
- 11.9
- albedo
- 0.05
- orbital eccentricity
- 0.5486125324976545
- semi-major axis of an orbit
- 3.444442544517852
- periapsis
- 1.554778197127248
- apoapsis
- 5.334106891908456
- orbital inclination
- 4.739847592862509
- longitude of ascending node
- 120.8356661331868
- argument of periapsis
- 162.912254241474
- mean anomaly
- 187.3361824207656
- time of periapsis
- 2459656.3908138215
- Commons category
- 22P/Kopff
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Article
5 sectionsContents
- Observations
- Exploration
- Notes
- References
- External links
Comet Kopff or 22P/Kopff is a Jupiter-family comet with a 6.36-year orbit around the Sun. Discovered on 23 August 1906, it was named after its discoverer, August Kopff. The comet was missed on its November 1912 return, but was recovered on June 1919 and has been seen at every apparition since. Close approaches to Jupiter in 1938 and 1943 decreased the perihelion distance and orbital period. 22P/Kopff’s last perihelion passage was 18 March 2022.
It will pass from Jupiter on 25 April 2026, then come to perihelion on 28 June 2028 at 1.32 AU from the Sun, and then pass from Earth on 13 July 2028.