Space and Astronomy Megathread (MERGED) - Part 1

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Unicorn, Fox Fur and Christmas Tree
Image Credit & Copyright: Michael Kalika

 

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NanoSail-D2
Image Credit & Copyright: Ralf Vandebergh

 

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The Heart of the Soul Nebula
Image Credit & Copyright: Nicola Bugin

 

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The Einstein Cross Gravitational Lens
Image Credit & License: NSF, NOIRLab, AURA, WIYN; Processing: J. Rhoads (Arizona State U.) et al

 

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HH 49: Interstellar Jet from Webb
Image Credit: NASA, ESA, CSA, STScI, JWST

 

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The Falcon and the Hunter's Moon
Image Credit & Copyright: Michael Seeley

 

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NGC 7380: The Wizard Nebula
Images Credit & Copyright: Nevenka Blagovic Horvat & Miroslav Horvat

 

[Dr.]

It’s around the last week in December/first week in January (ish) that sunrises in the northern latitudes — which had been getting progressively later for months — reverse direction and start happening earlier.

The reason that earliest sunset and latest sunrise don’t happen on the winter solstice (~ December 21) is a tad technical.

| EarthSky

earthsky.org

But the short explanation is that the orbital mechanics (including axial tilt of the Earth, etc.) and our clocks/calendars don’t quite line up.

You can get specific sunrise/set times for your location here:

Sunrise and Sunset Calculator

Calculate local times for sunrises, sunsets, meridian passing, Sun distance, altitude and twilight, dusk and dawn times.

www.timeanddate.com

 

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The Red Rectangle Nebula from Hubble
Image Credit: NASA, ESA, Hubble; Processing & License: Judy Schmidt

 

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2026 begins a golden age of solar eclipses: How to see 3 total solar eclipses and 3 'ring of fire' eclipses in 3 years

Earth is about to see three total solar eclipses in just under two years, with each successive path of totality moving west to east across the globe. Here's everything you need to know to plan an exquisite triple-header.

www.space.com

 

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The Busy Center of the Lagoon Nebula
Image Credit: NASA, ESA, Hubble; Processing: Francisco Javier Pobes Serrano

 

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The Twisted Disk of NGC 4753
Image Credit: NASA, ESA, Hubble; Processing: Alexander Reinartz

 

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Comet Churyumov-Gerasimenko Creates Its Tails
Image Credit & License: ESA, Rosetta, NAVCAM