Courtright Star Trail with Mars
Photographed by Fred Lusk on August 23, 2003
From Courtright Reservoir, Fresno County, CA
This star trail looks south, hence the arch shape of the trails. Compare this to the circular pattern centered on Polaris when the camera is pointed north as in the adjacent image. The brightest streak is the planet Mars. The red lights in the foreground are from the small red flashlights we use to preserve our night vision.
Imaging Camera:
Olympus OM-4T (35 mm SLR)
Imaging Scope/Lens:
Zuiko 28 mm f/3.5
Photo tripod
Guide Scope/Camera:
Exposure Details:
Boot's Camera handled developing and scanning the negatives. The rest of the exposure data is missing, but the following is what I likely did: [1] Film was probably Kodak Royal Gold 100. [2] Lens aperture was probably f/4 or f/5.6. [3] Exposure appears to be about an hour (the sky turns 15° per hour and the star trail arcs appear to be about 15° long)

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