Sky & Telescope - June 2021 - 65

X TWILIGHT REFLECTIONS Comet NEOWISE stands high over Lake
Michigan on July 13, 2020. This composite consists of several 1-minute
exposures recorded with a Nikon Z6 and zoom lens at 86 mm, ISO 800.

time masking, especially if there are lots of trees. These are
the basic steps, but every deepscape tends to be a little different, requiring some modiﬁcations to the process.
The technique described here works just as well for multipanel mosaics and panoramas, giving that wide-angle " nightscape " feel with more details than can be recorded in a single
image captured with wide-angle lenses. Like most astrophotography, the sky and your creativity are the only limits.
With this basic technique, you can get out and deepscape
most anywhere that presents interesting juxtapositions of
large, bright nebulae, galaxies, star clusters, and the occasional comet above interesting foregrounds. Your subject
matter is endless once you master these basic techniques
and develop a workﬂow that works best for you. With today's
equipment and the power of the digital darkroom, imaging
the sky has never been easier - so get out under the stars and
deepscape the world!

MARYBETH KICZENSKI photographs the night sky from
rural and urban locations around the Great Lakes region.

S TRAILED STARS Conversely, a single minute-long exposure taken
through the same camera and lens captures the foreground nicely,
though astronomical objects appear trailed.

S UNMASKED RESULT To get the best of both results, paste the
stacked comet image over the foreground photo, and then a layer mask
is created. The mask only reveals the comet and stars while blocking the
blurred foreground, permitting the stationary foreground shot to be seen.

sk yandtelescope.org * JUNE 2 021

65

http://www.skyandtelescope.org

Sky & Telescope - June 2021

Table of Contents for the Digital Edition of Sky & Telescope - June 2021

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Sky & Telescope - June 2021 - Cover1
Sky & Telescope - June 2021 - Cover2
Sky & Telescope - June 2021 - 1
Sky & Telescope - June 2021 - Contents
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