The ISS pass over Wattle Flat 19.4.20 (Niall MacNeill)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: Extremely wide field

The ISS pass over Wattle Flat 19.4.20

My phone beeped. The International Space Station will be overhead in 5 mins. I grabbed the camera, tripod and electronic cable release. As it firstly rose from the north west and then went overhead I had programmed 20 sec shots, ISO 3200, f/ 7.1 and a focal length of 24mm for each. Given my lack of preparation time, I was really pleased with how these images came out.

In the first image the ISS is rising out the north westerly evening sky. The V of Taurus’ face, with bright red Aldebaran glowing as one eye, is above the cloud at left and above it is the prominent constellation of Orion. Venus can be seen close to setting against the backdrop of a lilac and orange sunset sky.

As it went overhead my camera was clicking away and the bright trail of the ISS was visible in 5 images. It brightened massively, I guess because some of the solar panels caught the sun, then it slipped into the shadow of the Earth and disappeared. Notice that the last part of the trail is red. Basically the ISS was having a red sunset in space as the light from the sun came obliquely though the atmosphere just as we have red sunsets on Earth.

I integrated the images with PixInsight so the stars were aligned, then stacked them. This allowed me to bring out the Milky Way without too much noise. There is some sky glow at the horizon and the Milky Way shares the scene.

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Status	Advanced failed
Started	...
Astrometry.net job	3432004
PixInsight job	45ESU30ZKJK4T9E068BXFVZMXGEKV35A
PixInsight queue size	n/a
PixInsight stage	PLATE_SOLVING_IMAGE

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The ISS pass over Wattle Flat 19.4.20

The ISS pass over Wattle Flat 19.4.20

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The ISS pass over Wattle Flat 19.4.20

The ISS pass over Wattle Flat 19.4.20

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