https://ift.tt/31PNdGr
#apod
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2020 August 12
2020 August 13
#юмор
"На Солнце просто так в телескоп смотреть нельзя... Или как говорят - в телескоп на Солнце можно посмотреть два раза, а в бинокль - один."
https://youtu.be/il55AkxHtq8?t=991
Хорошие лекции у Попова :)
#юмор #астронмия
https://youtu.be/il55AkxHtq8?t=991
Хорошие лекции у Попова :)
#юмор #астронмия
2020 August 14
2020 August 15
2020 August 16
2020 August 17
Perseids Around the Milky Way https://ift.tt/31RvGgQ
#apod
#apod
2020 August 18
Для спутников GPS релятивистский уход бортовых часов от земных часов в относительных единицах складывается главным образом из замедления бортовых часов на 2.5046·10⁻¹⁰, вызванного движением спутника относительно поверхности Земли (спецрелятивистский эффект), и их ускорения на 6.9693·10⁻¹⁰, вызванного более высоким положением спутника в гравитационной потенциальной яме (общерелятивистский эффект); в целом эти два эффекта вызывают ускорение часов спутника GPS по отношению к земным часам на 4.4647·10⁻¹⁰
2020 August 19
2020 August 20
Seeing Titan
Shrouded in a thick atmosphere, Saturn's largest moon Titan really is hard to see. Small particles suspended in the upper atmosphere cause an almost impenetrable haze, strongly scattering light at visible wavelengths and hiding Titan's surface features from prying eyes. But Titan's surface is better imaged at infrared wavelengths where scattering is weaker and atmospheric absorption is reduced. Arrayed around this visible light image (center) of Titan are some of the clearest global infrared views of the tantalizing moon so far. In false color, the six panels present a consistent processing of 13 years of infrared image data from the Visual and Infrared Mapping Spectrometer (VIMS) on board the Cassini spacecraft. They offer a stunning comparison with Cassini's visible light view.
https://ift.tt/2EctwR8 #apod
Shrouded in a thick atmosphere, Saturn's largest moon Titan really is hard to see. Small particles suspended in the upper atmosphere cause an almost impenetrable haze, strongly scattering light at visible wavelengths and hiding Titan's surface features from prying eyes. But Titan's surface is better imaged at infrared wavelengths where scattering is weaker and atmospheric absorption is reduced. Arrayed around this visible light image (center) of Titan are some of the clearest global infrared views of the tantalizing moon so far. In false color, the six panels present a consistent processing of 13 years of infrared image data from the Visual and Infrared Mapping Spectrometer (VIMS) on board the Cassini spacecraft. They offer a stunning comparison with Cassini's visible light view.
https://ift.tt/2EctwR8 #apod
2020 August 21