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- GANDALF THE GREEN
The Wizard Nebula is a cloud
of gas and dust that
surrounds the young open
cluster NGC 7380, some
10,000 light-years away in
Cepheus. The soft viridescent
hues are thanks to a creative
HαSOO combination of filter
data, with Hα used for the
luminance channel, SII
mapped to red, and OIII
mapped to both green and
blue. The image represents
13 hours of total exposure
with an 8-inch scope.
- Chad Leader
- RED VS. BLUE
The dark clouds Barnard
30/31/32 in Orion cast their
shadows across the red glow
of an emission nebula at
upper left, just next to the
blue reflection nebula at
upper left. Another diffuse
reflection nebula occupies
the lower right. This LRGB
image was made with a
4.2-inch scope over nearly
10.5 hours of observations.
- César Blanco González
- FLY ME TO THE MOON
As the photographer
was taking shots of the
92.1-percent illuminated
Moon in Kolkata, India, on
July 21, 2021, an airliner
happened to photobomb
the camera’s view and
transit the Moon’s disk.
- Soumyadeep Mukherjee
- PERSEID PLETHORA
Seventeen Perseid meteors
streak across the skies over
Cedar Rapids, Iowa, in this
composite image from
Aug. 14, 2021. Each meteor
streak is a separate
20-second exposure at a
focal length of 16mm, f/2.8,
and ISO 400. • Gregg Alliss
SEND YOUR IMAGES TO:
Astronomy Reader Gallery,
P.O. Box 1612, Waukesha,
WI 53187. Please include
the date and location of the
image and complete photo
data: telescope, camera,
filters, and exposures.
Submit images by email to
readergallery@
astronomy.com.3
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