Jump to content
 







Main menu
    


Navigation  


●Main page
 ●Contents
 ●Current events
 ●Random article
 ●About Wikipedia
 ●Contact us
 ●Donate
  



Contribute  


●Help
 ●Learn to edit
 ●Community portal
 ●Recent changes
 ●Upload file
  







Search  

































●Create account

●Log in
 









●Create account
 ● Log in
  



Pages for logged out editors learn more  


●Contributions
 ●Talk
  


















Contents

   



(Top)
  


1 References  













C/2017 T2 (PanSTARRS)






●Español
 ●فارسی
 ●Français
 ●Türkçe
  
Edit links
  








●Article
 ●Talk
  
















●Read
 ●Edit
 ●View history
  







Tools
    


Actions  


●Read
 ●Edit
 ●View history
  



General  


●What links here
 ●Related changes
 ●Upload file
 ●Special pages
 ●Permanent link
 ●Page information
 ●Cite this page
 ●Get shortened URL
 ●Download QR code
 ●Wikidata item
  



Print/export  


●Download as PDF
 ●Printable version
  



In other projects  


●Wikimedia Commons
  















Appearance
    

 





From Wikipedia, the free encyclopedia
  
(Redirected from C/2017 T2 (PANSTARRS))
C/2017 T2 (PanSTARRS)
Discovery
Discovered byPan-STARRS
Discovery date2 October 2017
Orbital characteristics
Epoch2458756.5 (30 Sept 2019)
Observation arc3.93 years
Number of
observations		6896
Orbit typeOort cloud
Aphelion~74000 AU (inbound)[1]
~3000 AU (outbound)
Perihelion1.6150 AU
Eccentricity0.99971
Orbital period~7 million years (inbound)[1]
~55000 years (outbound)
Inclination57.232°
Last perihelion4 May 2020[2]
Earth MOID1.2 AU (180 million km; 470 LD)
Jupiter MOID0.99 AU (148 million km; 390 LD)

C/2017 T2 (PanSTARRS) is an Oort cloud comet discovered on 2 October 2017[3] when it was 9.2 AU (1.38 billion km) from the Sun. The closest approach to Earth was on 28 December 2019 at a distance of 1.52 AU (227 million km). It came to perihelion (closest approach to the Sun) on 4 May 2020[2] when it was safe from disintegration at 1.6 AU from the Sun. (Mars is also roughly 1.6 AU from the Sun.)

Comet C/2017 T2 (PanSTARRS) brightened to apparent magnitude 8 and was visible with 50mm binoculars.[4][5] On 22-24 May 2020, the comet passed near the galaxy pair of Messier 81 and Messier 82, passing less than one degree from the latter.[6] In early June 2020 the comet was near the magnitude 1.8 star DubheinUrsa Major.[7]

Based on the light curve of the comet nucleus, it has been estimated that the nucleus has a rotational period of 5.6759 ± 0.0046 h.[8] The comet at perihelion had a water production of 6×1028 molecules/s. Also when observed in CN featured two side jets in June 2020, but they weren't observed one month later.[9] Concentric structures were observed in the inner coma in May 2020, probably created by a jet with rotation axis towards the Earth.[10]

JPL Horizons using an epoch 1950 orbit solution models that C/2017 T2 took millions of years to come from the Oort cloud at a distance of roughly 74,000 AU (1.2 ly).[1]

References

[edit]
  1. ^ a b c Horizons output. "Barycentric Osculating Orbital Elements for Comet C/2017 T2 (PANSTARRS)". Solution using the Solar System Barycenter. Ephemeris Type:Elements and Center:@0 (To be outside planetary region, inbound epoch 1950 and outbound epoch 2050. For epoch 1950-Jan-01 orbit period is "PR= 2.6E+09 / 365.25 days" = ~7.1 million years)
  • ^ a b "JPL Small-Body Database Browser: C/2017 T2 (PANSTARRS)". Jet Propulsion Laboratory. Retrieved 27 May 2020.
  • ^ Weryk, R.; Sato, H.; Wainscoat, R. J.; Woodworth, D.; Micheli, M.; Soulier, J. -F. (1 October 2017). "Comet C/2017 T2 (Panstarrs)". Central Bureau Electronic Telegrams. 4445: 1. Bibcode:2017CBET.4445....1W.
  • ^ "Comet Observation database (COBS)". Retrieved 27 May 2020. "C/2017 T2 (PANSTARRS) plot" Archived 2021-11-20 at the Wayback Machine
  • ^ Seiichi Yoshida. "C/2017 T2 ( PanSTARRS )". Retrieved 27 May 2020.
  • ^ Lawrence, Pete (1 May 2020). "How to see and photograph comet C/2017 T2 PanSTARRS". BBC Sky at Night Magazine. Retrieved 14 February 2023.
  • ^ Dickinson, David (13 February 2020). "Catch Comet T2 PanSTARRS This Spring". Universe Today. Retrieved 14 February 2023.
  • ^ Bahyl, Vladimír; Balážová, Emília (1 January 2022). "Comet C/2017 T2 (PanSTARRS): Nucleus Lightcurve and Period". Minor Planet Bulletin. 49 (1): 59–60. Bibcode:2022MPBu...49...59B. ISSN 1052-8091.
  • ^ Schleicher, D. G.; Knight, M. M.; Skiff, B. A. (1 October 2020). "A Smorgasbord of Recent Comet Narrowband Imaging and Photometry: Results from NEOWISE (C/2020 F3), ATLAS (C/2019 Y4), PanSTARRS (C/2017 T2), and 88P/Howell". Aas/Division for Planetary Sciences Meeting Abstracts. Vol 52. 52 (6): 111.05. Bibcode:2020DPS....5211105S.
  • ^ Manzini, Federico; Ochner, Paolo; Oldani, Virginio; Bedin, Luigi R. (2 May 2020). "ATel #13698: Concentric structures in the inner coma of comet C/2017 T2 (PANSTARRS)". The Astronomer's Telegram.


    • Stub icon

    This comet-related article is a stub. You can help Wikipedia by expanding it.

  • t
  • e

    • Retrieved from "https://en.wikipedia.org/w/index.php?title=C/2017_T2_(PanSTARRS)&oldid=1183395938"
    Categories: 
    ●Comet stubs
     ●Astronomical objects discovered in 2017
     ●Comets in 2020
     ●Oort cloud
     ●Discoveries by Pan-STARRS
     Hidden categories: 
    ●Webarchive template wayback links
     ●Articles with short description
     ●Short description matches Wikidata
     ●All stub articles
      


    ●This page was last edited on 4 November 2023, at 01:24 (UTC).
    ●Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.


    ●Privacy policy
    ●About Wikipedia
    ●Disclaimers
    ●Contact Wikipedia
    ●Code of Conduct
    ●Developers
    ●Statistics
    ●Cookie statement
    ●Mobile view


    Wikimedia Foundation
    Powered by MediaWiki