The horizon melts into veils of green, violet & gold that don’t quite belong to this world, but to a dream the cosmos lets fall upon the Earth.

For a moment, the cold turns warm, as if the air itself were holding an ancient promise.
And u realize there’s beauty that can’t be explained, only lived.

IC 405 / Caldwell 31

Camera: Sony A7III astromodified.
Telescope: Skywatcher Quattro 150/600.
Mount: Sky-Watcher NEQ5 Pro GoTo.
178 light frames stacked & processed in PixInsight.
Exposure: 60 seconds per frame, ISO 10000 (2 hours 58 minutes total exposure).

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Solar System thermometer 🌡️

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(Yes, Venus is hotter than Mercury, even though Mercury is closer to the Sun. Its thick carbon dioxide atmosphere traps heat through a strong greenhouse effect, while Mercury lacks an atmosphere to retain heat.)

4 billion years ago vs now.

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Naked eye vs. telescope.

#Astronomy #Astrophysics #Science #Telescope🔭

ISS orbit time on each planet based on their real sizes.

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Distances from Earth.

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Mars sometimes appears to move backward in the night sky due to retrograde motion, an optical illusion. This happens when faster-orbiting Earth overtakes Mars. As Earth passes, Mars seems to slow, stop, and move westward, although it's still moving forward in space. 1/3

#Mars #Science #Astronomy