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f4fotografy OP t1_j1gtpra wrote

Just a little red and green for christmas (and the Coal Sack).

[Annotated version with POIs on my profile as this sub doesn't allow galleries]

90% of the world's population live in the Northern Hemisphere and cannot see the South Celestial Pole. Down here at -37 degrees lattitude the Magellanic Clouds and the Carina region of the Milky Way never set below the horizon so we have "Galaxy Season" all year 'round.

The layers of green are caused by "Airglow", from the atmospheric molecules which absorb UV radiation all day and glow faintly green as they cool down at night.

The red is from "Diffuse Aurora", caused by high energy charged particles of solar wind being deflected by the Earth's magnetic field towards the poles and slamming into the atmosphere so hard they glow red and green (and sometimes purple) like tiny atomic meteors.

The dark region called the Coal Sack is actually a clump of cold gas and stardust blocking out the light from the stars behind similar to the "Dark Doodad" which is made of the same stuff but has a much funnier name.

The Magellanic Clouds are "Dwarf Galaxies" orbiting outside the Milky Way, they're much smaller than Andromeda but much closer.

The 47 Tuc cluster is the second brightest star cluster and contains more stars within it than can be seen from earth with the naked eye (around 10,000).

The Omega Centauri cluster contains around 10,000,000 stars and looks like a bright fuzzy star to the naked eye.

Sony A7III Tamron 17-28 17mm f/2.8 ISO5000 10"

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Cyberfury t1_j1hpnm4 wrote

There is no way one doo-doos on the Dark Doodad like that and gets a away with it. ;;)

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daovtoan t1_j1hy475 wrote

Heys Op can you see this with normal eyes ? Or is exposure the only ways

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f4fotografy OP t1_j1jjbqt wrote

not quite. You can see everything that's in the image, but your eyes won't pick up the details (everything is just a fuzzy blob), and your eyes won't pick up the colour.

From this location you can make out the dark nebulae like Coalsack and easily see the Magellanic Clouds, but this is a Bortle 3 sky (3rd best rating for darkness, "rural").

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36-3 t1_j1hcquu wrote

Thank you for posting. I'm jealous of you folks with the telescopes.

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incrediblediy t1_j1hxwuk wrote

awesome mate! were you camping there ?

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f4fotografy OP t1_j1jjjzr wrote

No it's all national park around there. That's the easiest place to get to for me when there's an aurora alert, it's around 2 hours drive and a short hike from my house.

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BurntLemonade t1_j1i3y06 wrote

Absolutely perfect for today. Happy Christmas!

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dtra33 t1_j1jgm6z wrote

Amazing m, thanks for posting, going down that way today, didn’t realise the milky way was still visible this time of year. Might givenit a shot or two if I can wake up

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f4fotografy OP t1_j1jjpum wrote

Some part of the milky way is visible all year round down here, and the Carina region is hugely underrepresented

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