User:Robertinventor/Wikipedia minor fixes examples: Difference between revisions

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# [https://en.wikipedia.org/wiki/List_of_smallest_stars#Smallest_stars_by_type List of smallest stars#Smallest stars by type] - lists diameter of [https://en.wikipedia.org/wiki/Luhman_16 Luhman 16] as '''45,000 km''' based on a link to a non notable Fandom wiki page[https://wszechswiat.fandom.com/pl/wiki/Luhman_16] in Polish. A more notable sourse would be this paper<ref>Crossfield, I.J.M., Biller, B., Schlieder, J.E., Deacon, N.R., Bonnefoy, M., Homeier, D., Allard, F., Buenzli, E., Henning, T., Brandner, W. and Goldman, B., 2014. [https://www.eso.org/public/archives/releases/sciencepapers/eso1404/eso1404a.pdf A global cloud map of the nearest known brown dwarf]. Nature, 505(7485), p.654.</ref> which says '''1.0+/-0.2 times the radius of Jupiter''' i.e. 139,820 km +/-27,960 km'''
# [https://en.wikipedia.org/wiki/Chicxulub_crater Chicxulub crater] says the impactor diameter ranges from 11 to '''81 km'''. The cite is to a preprint, not a [https://en.wikipedia.org/wiki/Wikipedia:Reliable_sources WP:RS]. 81 is likely a typo for 18. Anyway we can't use it. Most often given as 10-'''15 km''' and here is a cite<ref>
Parkos, D., Alexeenko, A., Kulakhmetov, M., Johnson, B.C. and Melosh, H.J., 2015. [https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2015JE004857 NOx production and rainout from Chicxulub impact ejecta reentry]. Journal of Geophysical Research: Planets, 120(12), pp.2152-2168{{quote| ''"Asteroids striking the Earth typically [Minton and Malhotra, 2010] have an impactor density of 2680 kg/m3and an impact velocity of 20 km/s.Assuming these properties, modern scaling relations indicate that a 10–15 km diameter projectile [Collins et al., 2008] created the 170 km diameter Chicxulub crater"''}}</ref>
# [https://en.wikipedia.org/wiki/Asteroid_impact_avoidance#Deflection_efforts Asteroid_impact_avoidance#Deflection_efforts] says ''"There is also the threat from comets entering the inner Solar System ... the warning time is '''unlikely to be more than a few months'''"'', source cited says ''"warning period for a potential impact from a long period comet '''may be as short as a year'''"''<ref>[http://space.nss.org/media/2000-Report-Of-The-Task-Force-On-Potentially-Hazardous-Near-Earth-Objects-UK.pdf Report of the Task Force onpotentially hazardous NEAR EARTH OBJECTS]</ref> <br />