Sky and Telescope - November 2017 - 60
NOVEMBER 2017 OBSERVING
Going Deep
* FURTHER READING: For a comprehensive table of positions, surface brightnesses,
position angles, and more, see https://is.gd/Abell194.
Only 6′ farther southwest is teensy PGC
5164, guarded by a 10.1-magnitude
star directly north. Another 8′ onward,
outside the cluster's official boundary,
is PGC 5145. Both galaxies were mere
mists in the high-power field.
If we return to the inclined spiral
NGC 538 (roughly in the middle of the
pack), then turn sharply southeast for
almost 16′, we arrive at my final Abell
cluster member: 13.5-magnitude NGC
557. Although its spiral form is similar to
that of NGC 538, all I could glimpse of
NGC 557 was its round core. A 9.0-magnitude star shines 43/4′ southeast.
Bonus Blobs
I finished off the night by shifting ½°
southeast of NGC 557 to the 7.0-magnitude star HD 8943, which sports an
8.6-magnitude companion 3′ to the
north-northwest. My interest lay not in
the star-pair, but in five small galaxies
(none of them members of Abell 194)
lurking nearby, mostly to the north and
west of the stars.
Barely 1.5′ west of HD 8943 -
almost swamped in the star's glare
- is 13.7-magnitude IC 119. It took
some patient staring on my part, but
I detected the wee ghost with averted
vision. Four other galaxies form a
shallow crescent, concave toward
the star-pair. The dominant object is
12.5-magnitude NGC 564, an elliptical
galaxy I noted as "oval, brighter toward
the middle." Not as big or bright as the
elliptical, but marginally more interesting, is 13.0-magnitude NGC 560. In my
observing log for this compact edge-on,
I reported "a distinct, stubby streak
aiming north toward 10.5-magnitude
star." Contrasting that is 14.3-magnitude NGC 558, which appeared "terribly
minute and faint." Finally, IC 120 registered as "an amorphous patch," tough
to hold even with averted vision.
My coverage of this entire region
suggests that one can derive a lot of
satisfaction from a single, careful observation. The keys are practice, patience,
and keeping thorough notes. That said,
I want to attack Abell 194 again - after
all, it's been five years! Now, about that
autumn overcast . . .
¢ Contributing Editor KEN HEWITTWHITE observes galaxies from a large
ark he built during British Columbia's
monsoon season.
NGC 564
NGC 560
IC 120
HD 8930
HD 8943
IC 119
p The galaxies gathered around 7th-magnitude HD 8943 are a bonus observation but may offer even more of a challenge than does Abell 194. IC 119 in
particular may be difficult to spot as the star's glare masks its slender body. Move north past HD 8930 to find NGC 564, the brightest galaxy in the area.
60
N O V E M B E R 2 0 17 * S K Y & T E L E S C O P E
POSS-II / CA LTECH / STSCI / PA LO M A R OBSERVATORY
NGC 558
https://is.gd/Abell194
Sky and Telescope - November 2017
Table of Contents for the Digital Edition of Sky and Telescope - November 2017
Contents
Sky and Telescope - November 2017 - Cover1
Sky and Telescope - November 2017 - Cover2
Sky and Telescope - November 2017 - 1
Sky and Telescope - November 2017 - Contents
Sky and Telescope - November 2017 - 3
Sky and Telescope - November 2017 - 4
Sky and Telescope - November 2017 - 5
Sky and Telescope - November 2017 - 6
Sky and Telescope - November 2017 - 7
Sky and Telescope - November 2017 - 8
Sky and Telescope - November 2017 - 9
Sky and Telescope - November 2017 - 10
Sky and Telescope - November 2017 - 11
Sky and Telescope - November 2017 - 12
Sky and Telescope - November 2017 - 13
Sky and Telescope - November 2017 - 14
Sky and Telescope - November 2017 - 15
Sky and Telescope - November 2017 - 16
Sky and Telescope - November 2017 - 17
Sky and Telescope - November 2017 - 18
Sky and Telescope - November 2017 - 19
Sky and Telescope - November 2017 - 20
Sky and Telescope - November 2017 - 21
Sky and Telescope - November 2017 - 22
Sky and Telescope - November 2017 - 23
Sky and Telescope - November 2017 - 24
Sky and Telescope - November 2017 - 25
Sky and Telescope - November 2017 - 26
Sky and Telescope - November 2017 - 27
Sky and Telescope - November 2017 - 28
Sky and Telescope - November 2017 - 29
Sky and Telescope - November 2017 - 30
Sky and Telescope - November 2017 - 31
Sky and Telescope - November 2017 - 32
Sky and Telescope - November 2017 - 33
Sky and Telescope - November 2017 - 34
Sky and Telescope - November 2017 - 35
Sky and Telescope - November 2017 - 36
Sky and Telescope - November 2017 - 37
Sky and Telescope - November 2017 - 38
Sky and Telescope - November 2017 - 39
Sky and Telescope - November 2017 - 40
Sky and Telescope - November 2017 - 41
Sky and Telescope - November 2017 - 42
Sky and Telescope - November 2017 - 43
Sky and Telescope - November 2017 - 44
Sky and Telescope - November 2017 - 45
Sky and Telescope - November 2017 - 46
Sky and Telescope - November 2017 - 47
Sky and Telescope - November 2017 - 48
Sky and Telescope - November 2017 - 49
Sky and Telescope - November 2017 - 50
Sky and Telescope - November 2017 - 51
Sky and Telescope - November 2017 - 52
Sky and Telescope - November 2017 - 53
Sky and Telescope - November 2017 - 54
Sky and Telescope - November 2017 - 55
Sky and Telescope - November 2017 - 56
Sky and Telescope - November 2017 - 57
Sky and Telescope - November 2017 - 58
Sky and Telescope - November 2017 - 59
Sky and Telescope - November 2017 - 60
Sky and Telescope - November 2017 - 61
Sky and Telescope - November 2017 - 62
Sky and Telescope - November 2017 - 63
Sky and Telescope - November 2017 - 64
Sky and Telescope - November 2017 - 65
Sky and Telescope - November 2017 - 66
Sky and Telescope - November 2017 - 67
Sky and Telescope - November 2017 - 68
Sky and Telescope - November 2017 - 69
Sky and Telescope - November 2017 - 70
Sky and Telescope - November 2017 - 71
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Sky and Telescope - November 2017 - 73
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Sky and Telescope - November 2017 - 76
Sky and Telescope - November 2017 - 77
Sky and Telescope - November 2017 - 78
Sky and Telescope - November 2017 - 79
Sky and Telescope - November 2017 - 80
Sky and Telescope - November 2017 - 81
Sky and Telescope - November 2017 - 82
Sky and Telescope - November 2017 - 83
Sky and Telescope - November 2017 - 84
Sky and Telescope - November 2017 - Cover3
Sky and Telescope - November 2017 - Cover4
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