Sky and Telescope - February 2017 - 63

OΣ 134
OΣ
13
1
34
5 Gem
Ge
G
em
M3
M
M35
3
35
5

NG
N
NGC
GC 2
21
2158
15
58
8

to 54× resolves the beady blur into nine closely spaced stars,
the piercing pinpoints at each end being the "eyes" I saw in
the steady binocular view. The "eye" at the arc's eastern end
is a yellowy 7.4-magnitude star with a 9.1-magnitude bluish
companion 30 arcseconds south. This delightful duo is called
Otto Struve 134 (OΣ 134).
Increasing to 100×, I see M35 not as a smooth powder of
stars but as curls and clumps of twinkling lights separated by
irregular voids. In all, I count perhaps four dozen cluster members down to 10th magnitude. Not bad for a suburban site.

FR ED ESPEN A K

The Twins Rule, by Jiminy!
Medium to high magnification also pulls in the miniscule
open cluster NGC 2158, buried in the Milky Way southwest
of M35's outskirts. Although packed with stars, NGC 2158 is
nearly five times more distant, glows wanly at magnitude 8.6,
and is a pint-size five arcminutes in diameter. In my humble
optics, NGC 2158 is a pale mist - like a nebula or comet -

S IN GOOD COMPANY Star clusters - open and globular - make
ideal targets for suburban viewers. Small binoculars reveal M35 as a
patch of grainy glitter. Turn your 10×50s on this fine open cluster and
individual stars will really start to pop into view.

that's almost overwhelmed by the starry aggregate next door.
I consider M35's ghostly sidekick the toughest test on this
small-scope tour. Wait for a moonless night and go for it.
Considering its variety of telescopic targets on offer to city
stargazers, Gemini compares favorably to its brilliant, wintersky neighbors. Even the celestial poster boy, Orion, might
agree. March on, you heavenly Twins. I'll catch up to you soon.

¢ Contributing Editor KEN HEWITT-WHITE, a stargazer all his
life, studies celestial objects with telescopes small and large. A
resident of Chilliwack, British Columbia, he observes from his
home during the winter and at dark, high-elevation sites during
the summer.
s k y a n d t e l e s c o p e .c o m

* FEBRUARY 2017

63


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Sky and Telescope - February 2017

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

Contents
Sky and Telescope - February 2017 - Cover1
Sky and Telescope - February 2017 - Cover2
Sky and Telescope - February 2017 - 1
Sky and Telescope - February 2017 - Contents
Sky and Telescope - February 2017 - 3
Sky and Telescope - February 2017 - 4
Sky and Telescope - February 2017 - 5
Sky and Telescope - February 2017 - 6
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