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205P/Giacobini

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205P/Giacobini is a Jupiter-family comet with an orbital period of 6.68 years. It was discovered by Michel Giacobini on 4 September 1896 and then it was lost until it was recovered by Koichi Itagaki on 10 September 2008. The comet was then found to have fragmented into three pieces.

Key facts

Comet.name
205P/Giacobini
Comet.image
205P 2021-10-25 image ZTF-sso-381-zr-size-3.5arcminc.png
Comet.caption
Comet 205P/Giacobini photographed from the Zwicky Transient Facility on 25 October 2021
Comet.discoverer
Michel Giacobini
Comet.discovery_site
Nice, France
Comet.discovery_date
4 September 1896
Comet.mpc_name
D/1896 R2, P/2008 R6
Comet.designations
1896 V, 1896d
Comet.epoch
19 February 2014 (JD 2456707.5)
Comet.observation_arc
112.05 years
Comet.obs
1,143
Comet.perihelion
1.536 AU
Comet.aphelion
5.558 AU
Comet.semimajor
3.547 AU
Comet.period
6.681 years
Comet.eccentricity
0.5669
Comet.inclination
15.287°
Comet.asc_node
179.625°

via Wikipedia infobox

Wikidata facts

Parent body
Sun
Orbital period
2440.203586187051
Image
205P 2021-10-25 image ZTF-sso-381-zr-size-3.5arcminc.png
Show 14 more facts
discoverer or inventor
Michel Giacobini
time of discovery or invention
1896-09-04
provisional designation
205P/1896 R2
absolute magnitude
14.0
orbital eccentricity
0.5669310590242265
semi-major axis of an orbit
3.547195211059772
periapsis
1.536180073487991
apoapsis
5.558210348631553
orbital inclination
15.28723708881279
longitude of ascending node
179.6246259836913
argument of periapsis
154.2565613259032
mean anomaly
293.7594262212901
time of periapsis
2457156.5013491274
Sources (2)

via Wikidata · CC0

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Encyclopedic overview

3 sections
Contents
  • Observational history
  • References
  • External links

205P/Giacobini is a Jupiter-family comet with an orbital period of 6.68 years. It was discovered by Michel Giacobini on 4 September 1896 and then it was lost until it was recovered by Koichi Itagaki on 10 September 2008. The comet was then found to have fragmented into three pieces.

== Observational history == The comet was discovered by Michel Giacobini on 4 September 1896. He described the comet as faint and with a coma about one arcminute across. Other observers confirmed the presence of the comet the next day, and estimated it to have an apparent magnitude of 11.3. The comet was then located in Serpens. The comet subsequently grew fainter and it was last observed on 5 January 1897 by William Hussey. The first elliptical orbit was calculated by Perrotin and Giacobini and indicated an orbital period of 6.65 years and perihelion date on October 28.80.

Excerpted from Wikipedia’s “205P/Giacobini” article, available under the CC BY-SA 4.0 licence.