Image details:
Location: The Oaks, NSW.
Direction: facing SSW.
Field of view: 40° x 27°.
Camera: Canon 60D mounted on a tripod.
Lens: 50mm focal length.
Focal stop: f/1.8
ISO: 250.
Number of exposures: 75 x 30 sec (5 sec intervals)
Total exposure time: 45 minutes
9.03 pm to 9.48 pm, 5th November 2016
The two brightest star trails, lower left, are the two “Pointer”stars, Beta Centauri (Hadar) and Alpha Centauri (Rigil Kentaurus).
Four aircraft heading towards Sydney Airport crossed the field of view during this exposure.
See my previous star-trail images > Here <
All images © R.Powell
Cosmic Focus 