Sky and Telescope - June 2017 - 55

+58°

Eiffel
Tower
Star magnitudes

3
4
5
6
7
8
9

+57°

78

ε
Imagine a right triangle that uses the line
that runs between Mizar and Alioth in Ursa
Major as the hypotenuse. The Eiffel Tower
asterism occupies the 90° corner of the
triangle.

+56°

URSA MAJOR
80

+55°

SUE FRENCH (3)

ζ
through Binoculars, a book affectionately
known as TUB. Look for the Zigzag
about 2° west-southwest of Omega (ω)
Herculis. The asterism's name describes
the view through large binoculars,
but it's a wonderful area for dot-todot games through any telescope that
offers a field of view of at least 1½°. My
105-mm refractor at 28× shows a score
of 8th- to 10th-magnitude stars in a
switchback, 1.3° chain. It reminds me
of the beautiful Chinese dragons carried
in parades, its head at the south-southeastern end. Since the tail's brightest
star gleams gold, I think of this as the
Golden Dragon. At a similar magnification, the 130-mm scope plucks out
more stars and turns the asterism into a
flower, as outlined on my pencil sketch.
On one occasion, I even fashioned a
balloon animal with its stars.
Webb's Wreath also resides in Hercules, 2.7° south-southwest of Omicron (ο) Herculis. The wreath was first
mentioned in the fourth edition (1881)
of Thomas William Webb's observing
guide, Celestial Objects for Common Telescopes. Its brightest star, 7th-magnitude
HD 164922 (SAO 85678), adorns the
wreath's eastern side. My 130-mm
scope at 63× discloses 16 additional
stars, magnitudes 10.7 and fainter,
outlining an 11′ × 7′ oval that leans
northeast and is dented inward at the
bright star. Although some skygazers
call this asterism the Ruby Ring, I see

A look at the Zigzag
asterism through a
105-mm refractor
at 28× reveals 20 or
so 8th- to 10thmagnitude stars
in a crooked chain
about 1.3° long.

Napoleon's Hat lies 40 arcminutes
south-southwest of Arcturus in Boötes.

Summer Doodles
Object

Size/Sep

RA

Dec.

Jaws

27′

12h

Eiffel Tower

28′

13h 09.9m

+57° 29′

Napoleon's Hat

20′

14h

15.0m

+18° 33′

Zigzag (Flower)

1.3°

16h 17.5m

+12° 55′

Webb's Wreath

11′ × 7′

18h

02.4m

+26° 18′

1.1°

18h 01.3m

+47° 59′

Dog and Stick

1.5°

17h

35.0m

+68° 54′

Engagement Ring

48′

02h 40.0m

+88° 52′

15h

+62° 32′

Candle and Holder

Ring of the Nibelung

1.4′ × 0.6′

38.8m

-11° 21′

58.0m

Angular sizes and separations are from recent catalogs. Visually, an object's size is often smaller than the
cataloged value and varies according to the aperture and magnification of the viewing instrument. Right
ascension and declination are for equinox 2000.0.

s k y a n d t e l e s c o p e .c o m

* JUNE 2017

55



http://www.skyandtelescope.com

Sky and Telescope - June 2017

Table of Contents for the Digital Edition of Sky and Telescope - June 2017

Contents
Sky and Telescope - June 2017 - Cover1
Sky and Telescope - June 2017 - Cover2
Sky and Telescope - June 2017 - 1
Sky and Telescope - June 2017 - Contents
Sky and Telescope - June 2017 - 3
Sky and Telescope - June 2017 - 4
Sky and Telescope - June 2017 - 5
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