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- {{Short description|Oort cloud comet}} | orbit = [[Oort cloud]] ...25 KB (3,273 words) - 00:11, 12 September 2024
- [[Oort cloud]] comet [[C/2017 K2]] was announced when it had a short 2.6 day obser ...vation arc of about 200 days to rule out a Mars [[Impact event|impact]] by Oort cloud comet [[C/2013 A1 (Siding Spring)]].<ref name=esa/> ...9 KB (1,335 words) - 19:00, 9 February 2025
- ...es outside Neptune's orbit. Far beyond this region is the vast spherical [[Oort cloud]] enshrouding the Solar System, whose presence was deduced from the o ...signed to determine the outer limit of the Kuiper belt and directly detect Oort cloud objects out to 10,000 AU. Such objects are too small to detect w ...17 KB (2,296 words) - 22:06, 23 January 2025
- ...eous corona that surrounds the Milky Way. Inspired by this proposal, [[Jan Oort]], of Leiden University, Netherlands, proposed that cold gas clouds might b ===Oort's hypothesis=== ...26 KB (4,077 words) - 18:02, 14 November 2024
- {{short description|Oort cloud comet}} | orbit = [[Oort cloud]] ...53 KB (7,061 words) - 03:34, 25 January 2025
- | orbit = [[Oort cloud]] '''C/2013 A1''' ('''Siding Spring''') is an [[Oort cloud]] [[comet]] discovered on 3 January 2013 by [[Robert H. McNaught]] at ...40 KB (5,145 words) - 19:42, 5 February 2025
- ...Galaxy rotation curve|galactic rotation]] by [[Bertil Lindblad]] and [[Jan Oort]]. In 1924, Dutch astronomer [[Jan Oort]] [[:Category:Discoveries by Jan Oort|discovered]] the [[galactic halo]], a group of stars orbiting the [[Milky W ...82 KB (11,502 words) - 16:54, 15 May 2024
- ...ng | first1 = RP | last2 = Merrifield | first2 = MR | title = Refining the Oort and Galactic constants | journal = Monthly Notices of the Royal Astronomic ...alo stars and hypervelocity stars. High-velocity stars were studied by Jan Oort, who used their kinematic data to predict that high-velocity stars have ver ...61 KB (8,592 words) - 01:54, 20 January 2025
- ...url=https://web.archive.org/web/20210126014353/https://www.space.com/16401-oort-cloud-the-outer-solar-system-s-icy-shell.html |url-status=live }}</ref> and [[File:Oort_cloud_Sedna_orbit.svg|thumb|The presumed distance of the [[Oort cloud]] compared to the rest of the Solar System.]] ...65 KB (9,721 words) - 13:09, 16 February 2025
- ...y (low-resolution) visible spectrum of 2I/Borisov was similar to typical [[Oort Cloud]] comets.<ref name=IAC/><ref name=deLeón2019/> Its [[color index]]es |last9 = Kleyna |first9 = Jan T. ...59 KB (7,927 words) - 15:18, 2 February 2025
- ...will gravitationally [[Perturbation (astronomy)|perturb]] members of the [[Oort cloud]], a halo of icy bodies orbiting at the edge of the Solar System, the ...will equal the actual population size.<ref>{{cite book|last1=Klein|first1=Jan|last2=Takahata|first2=Naoyuki|title=Where Do We Come From?: The Molecular E ...174 KB (23,751 words) - 02:21, 1 March 2025