Westerly Star Trails
This 25minute exposure began about ninety minutes after sunset. I haven’t taken any star trails for nearly three years and was initially a little disappointed not to get the trails a bit closer to the horizon. However, looks can be deceiving and the lowest trails actually reach well below 10° from the horizon, where there was considerable murk visible before sunset.
As well as the star trails, there are three late-evening aircraft trails, as the number of flights begin to pick up, with all Australia’s interstate borders opening up again, post-covid.
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| Camera: | Canon 60D, 50 mm, f/5.6, ISO 250. |
| Exposure: | 99 x 15 sec = 24.75 minutes. |
| Field of View: | Approximately 40° x 27°. |
| Software: | DPP, Star Trails v2.3, GIMP. |
| Observatory location: | 34° South. |
| Image date: | 2020- 12-07. |
Images © Roger Powell
I’m a founder member of Macarthur Astronomical Society
Cosmic Focus 
sigh . . . more stuff I got to try . . .
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You’d better start a list!
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Starting a list . . . yet another thing . . .
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That’s lovely! At first I wondered why one line weaves a bit, but that must be one of the aircraft trails. It actually adds an interesting effect to the overall image!
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That’s a phenomenon which you can only pick up photographically. If I’d watched that aircraft I would not have seen those subtle changes of direction.
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