Sky and Telescope - November 2016 - 40

Connect-the-Dots

HERBERT WALTER (2)

DoDz 5

ASTERISM, AHOY Connect the 9th- and 10th-magnitude
dots to form a ship's anchor out of DoDz 5 in the dim reaches
of Hercules.

DoDz 8

GOOD JOB Its pattern is a bit irregular, but with just a bit of
imagination, the stars of DoDz 8 can be configured into a drawing of a five-pointed star.

I did an internet search only to learn that my question of having found a new asterism had been quickly
answered: it's called the Cosmic Question Mark. With
a magnitude between 5 and 7, it's easy to view in binoculars. Nu (ν) Ceti serves as the base of the question mark.
Look 50′ north of Nu to the bottom of the curve; four
more stars round out the punctuation mark.
Having served in the United States Navy years ago,
when I saw the asterism DoDz 5 in Hercules, I immediately thought of a ship's anchor. Four 8th-magnitude
stars form its arms and crown, with two more providing
the shank. Sail toward this asterism by starting at Eta
(η) Herculis and floating 3° 45′ west to 25 Herculis. The
brightest point in the anchor, the 9th-magnitude star
pinning the middle of the shank, lies 47′ north-northeast
of 25 Her. At a size of 16′ across, it's relatively simple to
spot with a small telescope in suburban night skies.
On the opposite side of Hercules, look for the fivepointed star pattern of DoDz 8. Start at Delta Herculis
and starhop 1½° east to 70 Herculis, then move just
about the same distance farther east. There you'll fi nd
seven 8th- and 9th-magnitude stars arranged in a rough
star shape. The DoDz clusters, discovered by astronomers Madona Dolidze and Galina N. Jimsheleishvili,
40

November 2016 sky & telescope

HD 158085

may or not be open clusters (S&T: Oct. 2015, p. 55).
If future research proves these stars to be physically
related, we may have to revisit our list of asterisms!
If I've piqued your interest in asterisms big and small,
review the current Astronomical League asterisms at
https://is.gd/ALAsterism or go out and seek your own.
That's the fun of asterisms! We don't need high-tech,
expensive gadgets, nor do we need to give up our careers
to become full-time astronomers for a chance at discovery. The only tools necessary? A pair of eyes (or possibly
low-power optics), clear skies, and imagination. Asterisms allow stargazers the opportunity to use our imaginations and discover something unique in the night sky
for ourselves. Most of all, asterisms encourage us to see
the natural beauty of the surrounding heavens. ✦
Troy Stratton is Program Chair of the Astronomical
League's Asterisms Observing Program.


https://is.gd/ALAsterism

Sky and Telescope - November 2016

Table of Contents for the Digital Edition of Sky and Telescope - November 2016

Contents
Sky and Telescope - November 2016 - Cover1
Sky and Telescope - November 2016 - Cover2
Sky and Telescope - November 2016 - 1
Sky and Telescope - November 2016 - Contents
Sky and Telescope - November 2016 - 3
Sky and Telescope - November 2016 - A
Sky and Telescope - November 2016 - B
Sky and Telescope - November 2016 - 4
Sky and Telescope - November 2016 - 5
Sky and Telescope - November 2016 - 6
Sky and Telescope - November 2016 - 7
Sky and Telescope - November 2016 - 8
Sky and Telescope - November 2016 - 9
Sky and Telescope - November 2016 - 10
Sky and Telescope - November 2016 - 11
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Sky and Telescope - November 2016 - 40
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Sky and Telescope - November 2016 - Cover3
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