A Bright Long Perseid Meteor Featuring Its Chemical Elements While Burning
Atmospheric & Optical phenomena | By Year: 2021 | Dark Sky Aldeias de Xisto | Meteors
The brightest meteor I’ve ever captured in many years and probably the most prominent from Perseids meteor shower of 2021. Caught in a single frame taken with a 20mm lens with crop factor, during the night of 11th to 12th at 01:25:22 secs (+1h UT), crossing high in the sky between Deneb and Altair star from Summer Triangle. It was a fast and bright meteor featuring a very long tail of about 36º (measured from star Rho Cygni up to Alpha Sagittae), with a half-green and half-pink violet hue due to an elevated concentration of chemical elements like magnesium (green) and calcium (pink-violet), typical in meteors from Perseids. The tail ends up with a little explosion visible as a white bluish bright flash, for hitting a high temperature during the rapidly process of burning. The image was captured from Dark Sky Aldeias do Xisto, in the center of Portugal. Nikon D810a, ISO2500, 20mm Lens at f/1.8, Exp: 20 secs.
PT: O meteoro mais brilhante que já captei em muitos anos e provavelmente o mais proeminente da chuva de meteoros das Perseidas de 2021. Captado em um único disparo através de uma lente de 20 mm com factor crop aplicado, durante a noite de 11 para 12 de Agosto pela 01h25m20 seg (+1UT) cruzou o céu bem alto, entre a estrela Deneb e a estrela Altair do Triângulo de Verão. Era um meteoro rápido e brilhante, apresentando uma cauda muito longa com cerca de 36º de comprimento (medida da estrela Rho Cygni até Alpha Sagittae), com uma tonalidade metade verde e metade rosa-violeta, devido a uma elevada concentração de elementos químicos como magnésio (verde) e cálcio (rosa-violeta), típico em meteoros das Perseidas. A cauda acaba com uma pequena explosão visível como um clarão branco azulado brilhante, por atingir uma alta temperatura durante o rápido processo de queima. A imagem foi captada no Dark Sky Aldeias do Xisto, no centro de Portugal. Nikon D810a, ISO2500, 20mm Lens at f/1.8, Exp: 20 secs.
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