Comments

You must log in or register to comment.

AutoModerator t1_j1gtkw7 wrote

Hi f4fotografy! Dont worry, this message does not mean that your post is removed. This is a reminder to quickly check your post to make sure it doesnt break any of our rules. Human moderators check the following --

Thanks!

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

1

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"

11

36-3 t1_j1hcquu wrote

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

3

daovtoan t1_j1hy475 wrote

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

4

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

2

f4fotografy OP t1_j1jjbqt wrote

Replying to daovtoan (#1,038,902)

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").

3