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 [email protected].72 ASTRONOMY • JULY 2018
- LITTLEKNOWN FEATURE
This is one of relatively few images of
the Hercules Cluster (M13) that show
the dark “propeller” feature (to the
upper left of center in this image). The
spiral galaxy NGC 6207 in the upper
right, some 62.5 million light-years
away, gives a bit of perspective to the
much closer star cluster, which lies
“only” 25,000 light-years away.
- Rodney Pommier
- WHOSE LINE IS IT?
The lunar feature Rupes Recta (lower
left) is often called the Straight Wall.
The slope is not as steep as you might
think; it shows up as it does due to the
perspective caused by sunlight striking
it at just the right angle. • Brian Ford - BLUE ON BLUE
Comet C/2016 R2 (PANSTARRS)
appears to the left of the Pleiades star
cluster (M45) on February 4, 2018. The
comet’s blue tail comes from ionized
carbon monoxide, whereas the blue
nebulosity around M45 is reflected
light from nearby bright stars.
- José J. Chambó
- THE MORE MOONS,
THE BETTER
This breathtaking scene shows the
positions of the eclipsed Moon as
it descends the western sky over
San Francisco. The photographer
composed this image by stacking 17
exposures taken from a fixed location.
He captured his shots January 31,
2018, between 5:58 A.M. and 6:44 A.M.
PST from the USS Hornet Museum in
Alameda, California. • Wesley Chang
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