#comettail

A shooting star streaking across the sky

(🇮🇹 nel primo commento😊) 🇬🇧 Let's go back to talk about the physics phenomenon of radiation pressure! (I'm referring to my second post😉) When a comet comes near a star it starts releasing gases in a process called outgassing. This produces a visible "coma" and sometimes a tail: the one we see in every single comet representation 🌠 This coma feels a force exerted by the star's radiation pressure, that causes the formation of a tail oriented in a way that it always points away from the star. It may feel a little counterintuitive but the tail does not "follow" the path of the comet but stays radial to its orbit around the star! This is because the pressure of the star's radiation literally pushes the particles of the coma and tail away (#socialdistance at its finest guys, the tail can reach a length of 3.8 astronomical units!!). Here I chose to show you the beautiful C/2019 Y4 (or ATLAS Y4), a comet discovered on December 28 2019 that fragmented on April 9. Swiping left instead you can watch a little animation about the behaviour of the tail of a comet! - Credit:ATLAS, Wiki - #physics #astrophysics #solarsail #spacecraft #spacemission #esa #nasa #eso #solarsystem #earth #space #popularscience #popscience #popsci #science #comet #atlasy4 #atlas #comettail #radiationpressure #orbit #star #sun https://www.instagram.com/p/B-9NdB9pAIG/?igshid=utezxqisplpa

redraw of this things bc cats are good

. 2018.12.19 本日は定休日です。 . sous le nez × 小原聖子 exhibition 「星に願いを」 明日から24日(月)まで休まず開催いたします。 . sous le nez(スールネ)さんのオリジナルのアロマミスト「COMET TAIL」をオンラインストアに掲載しました。 クリスマスプレゼントの起源ともいわれる、キリスト誕生物語から起草した冬限定の薫り。スモーキーでしっとりとした厳かな夜を思わせてくれます。 . ボックス付きなのでギフトにもぴったりです。お友達へのクリスマスプレゼントに、もちろん自分用にも、いかがでしょうか。 フレグランスストーリーにつきましては、オンラインストアの説明をご覧下さいませ。 . . #souslenez #COMETTAIL #aromamist #obaraseiko #exhibition #kanazawa (マーゴ) https://www.instagram.com/p/BrjMnSKnzul/?utm_source=ig_tumblr_share&igshid=1ogfgd944e9d9

This is the back cover of my #poetrybook Eternal Comet, which is available on Amazon. #comettail #dayofthecomet #celestialbodies #orbit #fallingstars #starpoem #astral #astralplane #transition #epoch #newage #amazonbooks https://www.instagram.com/p/BnZYW3vhym5/?utm_source=ig_tumblr_share&igshid=q0be7zs4pzsn