Contains:  Extremely wide field
Mosaic: Milky Way and Planets (Astrotracer), 



Mosaic: Milky Way and Planets (Astrotracer)

Mosaic: Milky Way and Planets (Astrotracer), 



Mosaic: Milky Way and Planets (Astrotracer)

Technical card

Imaging telescopes or lenses: SMC Pentax-M 28mm f/2.8

Imaging cameras: Pentax K-3 II

Dates:Aug. 10, 2018

Frames: 9x60" ISO1600

Integration: 0.1 hours

Avg. Moon age: 28.46 days

Avg. Moon phase: 1.28%

Bortle Dark-Sky Scale: 3.00

Basic astrometry details job: 3980565

Resolution: 2500x1375

Data source: Traveller


This is a nine-panel mosaic showing the summer Milky Way and three planets: Mars on the left (east), Saturn embedded in the Milky Way (above and to the left of M8) and Jupiter on the right (west). Venus was also visible earlier in the evening, thus four planets were roughly in a line across the sky that night. Some red and green banded airglow is also visible to the right of the Milky Way. I didn't notice the airglow with my eyes.

All panels are single, 1-minute exposures with the lens wide open at f/2.8. Tracking was internal to the camera using its Astrotracer feature, with the camera mounted directly on a tripod. Astrotracer makes taking such mosaics relatively simple since re-aiming the camera for each successive panel is intuitive (unlike using an external tracker). This was, in fact, only my second serious astrophoto using Astrotracer (not just testing it from my backyard) on my first night of serious use and was also my first astro-mosaic.

This is technically a nightscape because of the foreground, which shows red lights and vehicles parked up near my campsite at the Starfest Star party near Ayton, Ontario, Canada. It's not a terribly interesting foreground but it's all that was available from that venue.



Mosaic: Milky Way and Planets (Astrotracer),