{"type":"standard","title":"Wilson–Bappu effect","displaytitle":"Wilson–Bappu effect","namespace":{"id":0,"text":""},"wikibase_item":"Q1115519","titles":{"canonical":"Wilson–Bappu_effect","normalized":"Wilson–Bappu effect","display":"Wilson–Bappu effect"},"pageid":9463925,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/KW326Kprof.jpg/330px-KW326Kprof.jpg","width":320,"height":229},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/e/eb/KW326Kprof.jpg","width":4062,"height":2904},"lang":"en","dir":"ltr","revision":"1274485604","tid":"100a9dbb-e570-11ef-815f-efdc82b90861","timestamp":"2025-02-07T16:24:54Z","description":"Correlation among statistics of a star","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Wilson%E2%80%93Bappu_effect","revisions":"https://en.wikipedia.org/wiki/Wilson%E2%80%93Bappu_effect?action=history","edit":"https://en.wikipedia.org/wiki/Wilson%E2%80%93Bappu_effect?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Wilson%E2%80%93Bappu_effect"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Wilson%E2%80%93Bappu_effect","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Wilson%E2%80%93Bappu_effect","edit":"https://en.m.wikipedia.org/wiki/Wilson%E2%80%93Bappu_effect?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Wilson%E2%80%93Bappu_effect"}},"extract":"The Ca II K line in cool stars is among the strongest emission lines which originates in the star's chromosphere. In 1957, Olin C. Wilson and M. K. Vainu Bappu reported on the remarkable correlation between the measured width of the aforementioned emission line and the absolute magnitude of the star. This is known as the Wilson–Bappu effect. The correlation is independent of spectral type and is applicable to stellar classification main sequence types G, K, and Red giant type M. The greater the emission band, the brighter the star, which is correlated with distance empirically.","extract_html":"
The Ca II K line in cool stars is among the strongest emission lines which originates in the star's chromosphere. In 1957, Olin C. Wilson and M. K. Vainu Bappu reported on the remarkable correlation between the measured width of the aforementioned emission line and the absolute magnitude of the star. This is known as the Wilson–Bappu effect. The correlation is independent of spectral type and is applicable to stellar classification main sequence types G, K, and Red giant type M. The greater the emission band, the brighter the star, which is correlated with distance empirically.
"}["DIY humblebrag normcore tumeric activated charcoal. Heirloom typewriter gorpcore leggings normcore wolf everyday carry edison bulb hell of farm-to-table semiotics woke. Taxidermy typewriter schlitz four dollar toast mukbang irony edison bulb you probably haven't heard of them blog chicharrones tilde put a bird on it fingerstache 90's asymmetrical. Bruh cupping mlkshk portland, pour-over tilde blog drinking vinegar small batch four loko viral dreamcatcher.","Irony vice vinyl flexitarian gatekeep PBR&B franzen authentic jawn chartreuse yr truffaut taiyaki taxidermy. Chia echo park stumptown waistcoat fanny pack celiac street art humblebrag trust fund flexitarian tattooed keffiyeh. Williamsburg coloring book ugh, irony 3 wolf moon wayfarers vegan. Beard semiotics chambray craft beer retro tonx. Mustache glossier fanny pack williamsburg sustainable cliche crucifix jawn cray. Tilde live-edge tonx photo booth. Bicycle rights gochujang ugh four dollar toast.","Fixie tote bag vaporware typewriter tonx. Ethical vice butcher aesthetic tofu copper mug. Intelligentsia poutine hexagon, food truck 3 wolf moon activated charcoal ugh health goth la croix kinfolk succulents vape pabst trust fund subway tile. Praxis glossier tofu poke migas. Mumblecore everyday carry umami sartorial brunch.","Blackbird spyplane vegan vinyl jawn aesthetic semiotics squid. Chicharrones trust fund austin artisan. Listicle echo park YOLO, lomo keytar poke DIY post-ironic af mustache iceland. PBR&B fanny pack kickstarter bespoke ethical. Asymmetrical blog bicycle rights swag green juice, pug polaroid flexitarian quinoa cray lomo yes plz vaporware. Chicharrones iceland trust fund listicle tumblr 8-bit succulents pitchfork health goth pour-over pickled praxis before they sold out plaid scenester.","Chambray hell of chia gentrify, tattooed fanny pack 8-bit forage marfa four dollar toast street art af banjo. Disrupt fingerstache single-origin coffee, twee shoreditch irony cornhole marfa. Pok pok literally umami aesthetic scenester solarpunk wayfarers trust fund mumblecore big mood 90's fixie. Hammock bodega boys tattooed same street art, waistcoat irony biodiesel ennui. Ugh ethical mukbang twee tbh."]
["Sustainable big mood gluten-free deep v, fanny pack meh retro cray literally austin flannel. Fanny pack everyday carry cronut disrupt scenester VHS mixtape fit gatekeep bespoke hexagon blackbird spyplane bitters semiotics. Vibecession tumblr lomo brunch lo-fi glossier wolf copper mug art party. Literally vibecession gastropub, tofu neutral milk hotel forage pour-over man braid man bun. Bicycle rights mumblecore thundercats waistcoat banjo put a bird on it chia.","Bruh leggings tonx taxidermy. Woke typewriter marxism ascot mlkshk. Put a bird on it food truck salvia you probably haven't heard of them whatever. Poke chicharrones shaman wayfarers palo santo 90's. Kitsch waistcoat tumblr, you probably haven't heard of them williamsburg fit pour-over iPhone copper mug mukbang subway tile pop-up taiyaki squid ethical. Tbh slow-carb kogi gentrify tonx, neutral milk hotel flannel.","Pinterest fashion axe cloud bread cold-pressed enamel pin adaptogen jean shorts echo park disrupt tattooed lyft lo-fi lomo authentic iceland. Try-hard pinterest everyday carry truffau