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'''C/1739 K1''' is a ] that was discovered by Italian astronomer ] in 1739.{{r|Zanotti_1740}} It is the parent body of the ] meteor shower.{{r|Jenniskens_2021}} '''C/1739 K1''' is a ] that was discovered by Italian astronomer ] in 1739.{{r|Zanotti_1740}} It is the parent body of the ] meteor shower.{{r|Jenniskens_2021}}


Zanotti spotted the comet in the constellation of ] on 27 May. He descripted as a magnitude 3 star surrounded by nebulosity while as seen from a telescope a tail 2 degrees long was spotted. Zanotti followed the comet with naked eye until 17 August, when it was only visible via a telescope. He last spotted the comet the next day. The comet was also observed by James Bradley from 30 May to 10 June and Fuhrmann from June 8 to June 19.<ref name="cometography"/> Zanotti spotted the comet in the constellation of ] on 27 May. He described it as a magnitude 3 star surrounded by nebulosity, while a tail 2 degrees long was spotted using a telescope. Zanotti followed the comet with the naked eye until 17 August, when it was only visible via a telescope. He last observed the comet the next day. It was also observed by ] from 30 May to 10 June and Fuhrmann from June 8 to June 19.<ref name="cometography"/>


The parabolic orbit calculated by ] indicates it passed perihelion on 17.9 June. The comet had passed at a distance of 0.45 AU on 16 April 1739.<ref name="cometography"/> The comet has a minimum orbital intersection distance with Earth of 0.049 AU and has been associated with the Leo Minorids ].<ref>{{cite book |last1=Jenniskens |first1=Petrus M. M. |title=Meteor showers and their parent comets |date=2006 |publisher=Cambridge University Press |location=Cambridge |isbn=9781316257104 |page=82}}</ref> The parabolic orbit calculated by ] indicates it passed perihelion on 17.9 June. The comet had passed at a distance of 0.45 AU on 16 April 1739.<ref name="cometography"/> The comet has a minimum orbital intersection distance with Earth of 0.049 AU and has been associated with the Leo Minorids ].<ref>{{cite book |last1=Jenniskens |first1=Petrus M. M. |title=Meteor showers and their parent comets |date=2006 |publisher=Cambridge University Press |location=Cambridge |isbn=9781316257104 |page=82}}</ref>
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{{DEFAULTSORT:Zanotti, 1739 K1}} {{DEFAULTSORT:Zanotti, 1739 K1}}
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{{Comet-stub}} {{Comet-stub}}

Revision as of 05:45, 1 January 2025

Parabolic comet
C/1739 K1 (Zanotti)
Discovery
Discovered byEustachio Zanotti
Discovery siteBologna, Italy
Discovery date28 May 1739
Orbital characteristics
Epoch17 June 1739 (JD 2356384.416)
Observation arc82 days
Perihelion0.674 AU
Eccentricity~1.000
Inclination121.260°
Longitude of
ascending node		211.044°
Argument of
periapsis		104.752°
Last perihelion17 June 1739

C/1739 K1 is a parabolic comet that was discovered by Italian astronomer Eustachio Zanotti in 1739. It is the parent body of the Leo Minorids meteor shower.

Zanotti spotted the comet in the constellation of Lynx on 27 May. He described it as a magnitude 3 star surrounded by nebulosity, while a tail 2 degrees long was spotted using a telescope. Zanotti followed the comet with the naked eye until 17 August, when it was only visible via a telescope. He last observed the comet the next day. It was also observed by James Bradley from 30 May to 10 June and Fuhrmann from June 8 to June 19.

The parabolic orbit calculated by Nicolas-Louis de Lacaille indicates it passed perihelion on 17.9 June. The comet had passed at a distance of 0.45 AU on 16 April 1739. The comet has a minimum orbital intersection distance with Earth of 0.049 AU and has been associated with the Leo Minorids meteor shower.

References

  1. ^ E. Zanotti (1739). "XV. The parabolic orbit for the comet of 1739. Observed by Signor Eustachio Zanotti at Bologna". Philosophical Transactions of the Royal Society of London. 41 (452): 809. doi:10.1098/rstl.1739.0145. ISSN 0261-0523. JSTOR 104378. S2CID 186214215.
  2. "C/1739 K1 – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 20 November 2023.
  3. P. Jenniskens; D. S. Lauretta; M. C. Towner; S. Heathcote; E. Jehin; et al. (2021). "Meteor showers from known long-period comets". Icarus. 365 (114469). doi:10.1016/j.icarus.2021.114469. ISSN 0019-1035.
  4. ^ Kronk, Gary W.; Meyer, Maik; Seargent, David A. J. (1999). Cometography: a catalog of comets. Cambridge ; New York: Cambridge University Press. pp. 42–43. ISBN 9780521585040.
  5. Jenniskens, Petrus M. M. (2006). Meteor showers and their parent comets. Cambridge: Cambridge University Press. p. 82. ISBN 9781316257104.

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