Auralgo's

Astrophotography

Click any image for the full-size version from Tennessee Skies.

Before you go out

The log — everything else, in order

The 2024 total solar eclipse, corona surrounding the black disk of the moon

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Total solar eclipse

Twenty minutes before totality the cigarette-lighter socket in my truck blew its fuse and took the mount with it. Strangers in the next field over offered their own car to run the power off. This image exists because of them.

Saturn with its rings open, showing the Cassini division

More Saturn images

Saturn, hand-blended

Seven separate sequences of 2,000 frames each, stacked and then blended by hand to hold detail in both the globe and the rings.

See the rest of the Saturn set

Scope
Celestron 14" SCT
Camera
Skyris
Frames
7 × 2,000
Animation of Jupiter rotating, with belts and moons visible

Click for the full-size animation

Jupiter turning

Twenty-two stacked images taken at ten-minute intervals across one night, assembled into an animation. You can watch the belts carry features around the limb.

More Jupiter animations

Scope
Celestron 14" SCT + 2.75× Barlow
Camera
Skyris colour
Frames
2,000 per interval, 22 intervals
Stacking
Registax
Uranus as a small featureless blue-green disk

Uranus

A small blue-green disk and not much else — which is more or less all Uranus ever gives you, and still worth the trouble of finding it.

Scope
Celestron 14" SCT + 2× Barlow
Camera
Skyris
Animation of Mars showing surface markings and a polar cap

Mars near opposition

Surface markings and the polar cap, pulled out of a 2,000-frame sequence.

More Mars images

Scope
Celestron 14" SCT + 2× Barlow
Camera
Skyris colour
Exposure
≈1/250 s, gain 0.89
Frames
2,000, stacked in Registax
The Whirlpool Galaxy with its companion NGC 5195

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The Whirlpool Galaxy

Off-axis autoguiding did most of the work here — it is what kept the stars from smearing across 200-second subs at this focal length.

Scope
Celestron 14" SCT
Camera
Celestron Nightscape 8300
Integration
10 × 200 s
Guiding
Off-axis
The Ring Nebula, a bright elliptical ring with a faint central star

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The Ring Nebula

The white point at the centre is the white dwarf left behind by the star that threw off the ring.

Scope
Celestron 14" SCT
Camera
Celestron Nightscape 8300
Integration
7 × 60 s
The Orion Nebula with the Trapezium at its core

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The Orion Nebula

Short subs through a small refractor. Orion is bright enough that even a badly lit sky lets it through.

Scope
Sky-Watcher 120 mm refractor
Camera
Celestron Nightscape 8300
Integration
3 × 40 s, averaged
Total solar eclipse composite showing the extended corona

Click for the larger image

Eclipse in the desert

Sixteen exposures layered together to carry the corona from the inner edge out to the faint outer streamers. Photographed from the southern Libyan desert.

Frames
16, layered

The Leonid storm

Individual fireballs imaged through a night-vision scope from a mountain top in Arizona, then pieced together into a film. The music is Spyro Gyra.

The story of that trip