Observation by Steve Knight: ISS close up

Uploaded by

Steve Knight

Observer

Steve Knight

Observed

2020 Mar 25 - 19:41

Uploaded

2020 Mar 26 - 14:38

Objects

Spacecraft

Equipment

Skywatcher 8in Dobsonian
ZWO ASI174MM camera
Televue 2.5x Powermate
Astronomik 642nm bandpass filter

Exposure

x5 0.3msec sequential exposures stacked

Location

Banbury

Target name

International Space Station

Title

ISS close up

About this image

I fel t somewhat like a WW2 search light operator capturing this. Manually tracked trying to keep ISS in centre of Telrad target rings. Had no idea if I had captured anything until afterwards. Venus was very convenient to set focus and estimate correct exposure.

Files associated with this observation

Sequence_g4_ap4 registaxed resized faststoned.jpg (124.0 kB)

Like this image

Andy Wilson, Martin Lewis, Jeremy Shears, Ray Emery, Chris Dole, Philip Masding, Bill Leatherbarrow, Nick James, Ian Rothwell, Callum Potter, Peter Mulligan, Chris Hooker, Andrew Dumbleton

Comments

Martin Lewis, 2020 Mar 26 - 15:34 UTC

Great job Steve,

Out of interest what gain did you use and what is your f-ratio without the Barlow?

Cheers

Martin

Peter Mulligan, 2020 Mar 27 - 14:00 UTC

At this rate Steve you'll soon be imaging the Astronauts doing a space walk!

Peter

Steve Knight, 2020 Mar 28 - 10:12 UTC

Thanks Martin. Dob is f6 so with the Barlow this was at f15. Gain as shown in Firecapture is 250. Here are settings: Shutter=0.300ms Gain=250 Brightness=1 Gamma=50 USBTraffic=80 AutoExposure=off SoftwareGain=10 (off)

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