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0 comments, 113 views, posted 9:13 pm 17/11/2019 in Sci-Fi, Science & Space by tricpe
tricpe has 15776 posts, 7047 threads, 293 points, location: In a pair of Speedo
Mad Mod

I do some astrophotography from time to time, I'm very proud of these photos.
I took a photo of the Sun through a hydrogen alpha filter.
Its utterly breathtaking to look at the sun at midday through a scope and see the flares dance and surface roil.

This has been colour corrected to be more recognizable, the raw image is bright magenta as all the other wavelengths are stripped out.

The original magenta.
A Hydrogen alpha filter cuts out all visible and invisible wavelengths of light except for the hydrogen line at 656.28nm. This red light is very abundant in astrophotography due to the large amount of hydrogen in the universe.
Also, the sun is a big ball of fusing hydrogen and if you captured all the light from it you'd burn up your camera.

Full moon from the southern hemisphere
This was taken during last years Supermoon, when the moons is at periapsis, its closest approach in its orbit.
While the full moon is spectacular in its detail, it ends up being rather flat with no shadows.
This was taken on a 2000mm Dobsonian telescope.

Half moon
When photographing the moon at waxing or waning, you get more definition in the terminus, as the shadows play across the peaks and craters.

Saturn from the ground.
Using a 2000mm Dobsonian telescope and manual tracking.

Saturn with 4 moons.
Titan, Dione, Enceladus and Rhea.
Titan is the bright dot to the left, Rhea is above.
Dione is below saturn.
Enceladus is very faint in line with the rings above saturn, zoom in to see.

Dumbbell Nebula
The Dumbbell Nebula is a planetary nebula in the constellation Vulpecula, at a distance of about 1,360 light years away formed when its Red Giant star expelled a lot of its gaseous shell and became a White Dwarf star.

TBH, i first thought this was the Ring Nebula, but thats in the northern hemisphere.

Forks over Coolum Beach
A storm ripped over Coolum beach just before new years. I caught a few lightning bolts above Mt Coolum. This is the best.

Clickety click

Extra Points Given by:

Paracelsus (5), tamsnod27 (5), evolution (15)


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