Sky & Telescope - June 2020 - 18

Pinwheel Perfection

my 8-inch at 93×. With the 16-inch, NGC 5473 is very bright
at 76× (which is the low power that I use for star-hopping to
targets) and shows a bright nucleus and a 14.3-magnitude
star northeast of the nucleus.
A tight trio dominated by the lenticular galaxy NGC 5485
(seen at 93× with my 8-inch) lies only one high-power field
east-northeast of NGC 5473. In the 16-inch NGC 5485 is
bright, fairly large, round, and brightens gradually toward
the visible nucleus. Only 6′ to the north-northeast, the spiral
NGC 5486 is quite large, but it's faint and amorphous with a
very faint nucleus. The magnitude-14.7 elliptical NGC 5484
is small and very, very faint, but easy to find because it's
only 4′ northwest of bright NGC 5485. PGC 50395 lurks
in the same high-power field of view, 13′ south-southeast of

NGC 5485. This magnitude-13.8 lenticular wasn't included
in the New General Catalogue of Nebulae and Clusters of Stars
- although it's nonstellar it's very small, which is why it may
have been omitted.
NGC 5585, an M101 Group spiral lying 3.3° northeast
of M101, was obvious at 76×. With the 16-inch at 203× the
galaxy is large, bright, and amorphous. At 114× it resembles
an unresolved globular cluster.
While here, we might as well observe NGC 5585's two
bright neighbors, NGC 5631 and NGC 5678. NGC 5631,
lying just short of 1° east of NGC 5585, is in the Herschel
400 list and so - even though the galaxy is tiny - I saw it
immediately with my 8-inch at 64×. At 203× it was small,
round, and moderately faint with a faint nucleus. In the

q IRREGULAR CONGLOMERATION NGC 5477, another member of the M101 Group, exhibits bright nebulae all across the galaxy. The nebulae
comprise glowing hydrogen gas and are the birthplace of new stars. Normally, the clouds of gas would glow pinkish red, but the selection of filters for
this image makes these regions look blue or white. Look carefully: Can you see background galaxies peeking through NGC 5477?

ESA / HUBBLE / N ASA

N

18

JUNE 2 02 0 * SK Y & TELESCOPE



Sky & Telescope - June 2020

Table of Contents for the Digital Edition of Sky & Telescope - June 2020

Contents
Sky & Telescope - June 2020 - Cover1
Sky & Telescope - June 2020 - Cover2
Sky & Telescope - June 2020 - 1
Sky & Telescope - June 2020 - Contents
Sky & Telescope - June 2020 - 3
Sky & Telescope - June 2020 - 4
Sky & Telescope - June 2020 - 5
Sky & Telescope - June 2020 - 6
Sky & Telescope - June 2020 - 7
Sky & Telescope - June 2020 - 8
Sky & Telescope - June 2020 - 9
Sky & Telescope - June 2020 - 10
Sky & Telescope - June 2020 - 11
Sky & Telescope - June 2020 - 12
Sky & Telescope - June 2020 - 13
Sky & Telescope - June 2020 - 14
Sky & Telescope - June 2020 - 15
Sky & Telescope - June 2020 - 16
Sky & Telescope - June 2020 - 17
Sky & Telescope - June 2020 - 18
Sky & Telescope - June 2020 - 19
Sky & Telescope - June 2020 - 20
Sky & Telescope - June 2020 - 21
Sky & Telescope - June 2020 - 22
Sky & Telescope - June 2020 - 23
Sky & Telescope - June 2020 - 24
Sky & Telescope - June 2020 - 25
Sky & Telescope - June 2020 - 26
Sky & Telescope - June 2020 - 27
Sky & Telescope - June 2020 - 28
Sky & Telescope - June 2020 - 29
Sky & Telescope - June 2020 - 30
Sky & Telescope - June 2020 - 31
Sky & Telescope - June 2020 - 32
Sky & Telescope - June 2020 - 33
Sky & Telescope - June 2020 - 34
Sky & Telescope - June 2020 - 35
Sky & Telescope - June 2020 - 36
Sky & Telescope - June 2020 - 37
Sky & Telescope - June 2020 - 38
Sky & Telescope - June 2020 - 39
Sky & Telescope - June 2020 - 40
Sky & Telescope - June 2020 - 41
Sky & Telescope - June 2020 - 42
Sky & Telescope - June 2020 - 43
Sky & Telescope - June 2020 - 44
Sky & Telescope - June 2020 - 45
Sky & Telescope - June 2020 - 46
Sky & Telescope - June 2020 - 47
Sky & Telescope - June 2020 - 48
Sky & Telescope - June 2020 - 49
Sky & Telescope - June 2020 - 50
Sky & Telescope - June 2020 - 51
Sky & Telescope - June 2020 - 52
Sky & Telescope - June 2020 - 53
Sky & Telescope - June 2020 - 54
Sky & Telescope - June 2020 - 55
Sky & Telescope - June 2020 - 56
Sky & Telescope - June 2020 - 57
Sky & Telescope - June 2020 - 58
Sky & Telescope - June 2020 - 59
Sky & Telescope - June 2020 - 60
Sky & Telescope - June 2020 - 61
Sky & Telescope - June 2020 - 62
Sky & Telescope - June 2020 - 63
Sky & Telescope - June 2020 - 64
Sky & Telescope - June 2020 - 65
Sky & Telescope - June 2020 - 66
Sky & Telescope - June 2020 - 67
Sky & Telescope - June 2020 - 68
Sky & Telescope - June 2020 - 69
Sky & Telescope - June 2020 - 70
Sky & Telescope - June 2020 - 71
Sky & Telescope - June 2020 - 72
Sky & Telescope - June 2020 - 73
Sky & Telescope - June 2020 - 74
Sky & Telescope - June 2020 - 75
Sky & Telescope - June 2020 - 76
Sky & Telescope - June 2020 - 77
Sky & Telescope - June 2020 - 78
Sky & Telescope - June 2020 - 79
Sky & Telescope - June 2020 - 80
Sky & Telescope - June 2020 - 81
Sky & Telescope - June 2020 - 82
Sky & Telescope - June 2020 - 83
Sky & Telescope - June 2020 - 84
Sky & Telescope - June 2020 - Cover3
Sky & Telescope - June 2020 - Cover4
https://www.nxtbook.com/nxtbooks/aas/st_202012
https://www.nxtbook.com/nxtbooks/aas/st_202011
https://www.nxtbook.com/nxtbooks/aas/st_202010
https://www.nxtbook.com/nxtbooks/aas/st_202009
https://www.nxtbook.com/nxtbooks/aas/st_202008
https://www.nxtbook.com/nxtbooks/aas/st_202007
https://www.nxtbook.com/nxtbooks/aas/st_202006
https://www.nxtbook.com/nxtbooks/aas/st_202005
https://www.nxtbook.com/nxtbooks/aas/st_202004
https://www.nxtbook.com/nxtbooks/aas/st_202003
https://www.nxtbook.com/nxtbooks/aas/st_202002
https://www.nxtbook.com/nxtbooks/aas/st_202001
https://www.nxtbook.com/nxtbooks/aas/st_201912
https://www.nxtbook.com/nxtbooks/aas/st_201911
https://www.nxtbook.com/nxtbooks/aas/st_201910
https://www.nxtbook.com/nxtbooks/aas/st_201909
https://www.nxtbook.com/nxtbooks/aas/st_201908
https://www.nxtbook.com/nxtbooks/aas/st_201907
https://www.nxtbook.com/nxtbooks/aas/st_201906
https://www.nxtbook.com/nxtbooks/aas/st_201905
https://www.nxtbook.com/nxtbooks/aas/st_201904
https://www.nxtbook.com/nxtbooks/aas/st_201903
https://www.nxtbook.com/nxtbooks/aas/st_201902
https://www.nxtbook.com/nxtbooks/aas/st_201901
https://www.nxtbook.com/nxtbooks/aas/st_201812
https://www.nxtbook.com/nxtbooks/aas/st_201811
https://www.nxtbook.com/nxtbooks/aas/st_201810
https://www.nxtbook.com/nxtbooks/aas/st_201809
https://www.nxtbook.com/nxtbooks/aas/st_201808
https://www.nxtbook.com/nxtbooks/aas/st_201807
https://www.nxtbook.com/nxtbooks/aas/st_201806
https://www.nxtbook.com/nxtbooks/aas/st_201805
https://www.nxtbook.com/nxtbooks/aas/st_201804
https://www.nxtbook.com/nxtbooks/aas/st_201803
https://www.nxtbook.com/nxtbooks/aas/st_201802
https://www.nxtbook.com/nxtbooks/aas/st_201801
https://www.nxtbook.com/nxtbooks/aas/st_201712
https://www.nxtbook.com/nxtbooks/aas/st_201711
https://www.nxtbook.com/nxtbooks/aas/st_201710
https://www.nxtbook.com/nxtbooks/aas/st_201709
https://www.nxtbook.com/nxtbooks/aas/st_201708
https://www.nxtbook.com/nxtbooks/aas/st_201707
https://www.nxtbook.com/nxtbooks/aas/st_201706
https://www.nxtbook.com/nxtbooks/aas/st_201705
https://www.nxtbook.com/nxtbooks/aas/st_201704
https://www.nxtbook.com/nxtbooks/aas/st_201703
https://www.nxtbook.com/nxtbooks/aas/st_201702
https://www.nxtbook.com/nxtbooks/aas/st_201701
https://www.nxtbook.com/nxtbooks/aas/st_201612
https://www.nxtbook.com/nxtbooks/aas/st_201611
https://www.nxtbook.com/nxtbooks/newtrack/st_201612
https://www.nxtbook.com/nxtbooks/aas/st_201610
https://www.nxtbook.com/nxtbooks/aas/st_201609
https://www.nxtbook.com/nxtbooks/aas/st_201608
https://www.nxtbook.com/nxtbooks/aas/st_201607
https://www.nxtbook.com/nxtbooks/aas/st_201606
https://www.nxtbook.com/nxtbooks/aas/st_201605
https://www.nxtbook.com/nxtbooks/aas/st_201604
https://www.nxtbook.com/nxtbooks/aas/st_201603
https://www.nxtbook.com/nxtbooks/aas/st_201602
https://www.nxtbook.com/nxtbooks/aas/st_201601
https://www.nxtbook.com/nxtbooks/aas/st_201512
https://www.nxtbook.com/nxtbooks/aas/st_201511
https://www.nxtbook.com/nxtbooks/aas/st_201510
https://www.nxtbook.com/nxtbooks/aas/st_201509
https://www.nxtbook.com/nxtbooks/aas/st_201508
https://www.nxtbook.com/nxtbooks/aas/st_201507
https://www.nxtbook.com/nxtbooks/aas/st_201506
https://www.nxtbook.com/nxtbooks/aas/st_201505
https://www.nxtbook.com/nxtbooks/aas/st_201504
https://www.nxtbook.com/nxtbooks/aas/st_201503
https://www.nxtbook.com/nxtbooks/aas/st_201502
https://www.nxtbook.com/nxtbooks/aas/st_201501
https://www.nxtbook.com/nxtbooks/aas/st_201412
https://www.nxtbook.com/nxtbooks/aas/st_201411
https://www.nxtbook.com/nxtbooks/aas/st_201410
https://www.nxtbook.com/nxtbooks/aas/st_201409
https://www.nxtbook.com/nxtbooks/aas/st_201408
https://www.nxtbook.com/nxtbooks/aas/st_201407
https://www.nxtbook.com/nxtbooks/aas/st_201406
https://www.nxtbook.com/nxtbooks/aas/st_mars
https://www.nxtbook.com/nxtbooks/aas/st_201405
https://www.nxtbook.com/nxtbooks/aas/st_201404
https://www.nxtbook.com/nxtbooks/aas/st_201403
https://www.nxtbook.com/nxtbooks/aas/st_201402
https://www.nxtbook.com/nxtbooks/aas/st_201401
https://www.nxtbook.com/nxtbooks/aas/st_201312
https://www.nxtbook.com/nxtbooks/aas/st_201311
https://www.nxtbook.com/nxtbooks/aas/st_201310
https://www.nxtbook.com/nxtbooks/aas/st_201309
https://www.nxtbook.com/nxtbooks/aas/st_201308
https://www.nxtbook.com/nxtbooks/aas/st_201307
https://www.nxtbook.com/nxtbooks/aas/st_201306
https://www.nxtbook.com/nxtbooks/aas/st_201305
https://www.nxtbook.com/nxtbooks/aas/st_201304
https://www.nxtbook.com/nxtbooks/aas/st_201303
https://www.nxtbook.com/nxtbooks/aas/st_201302
https://www.nxtbook.com/nxtbooks/aas/st_201301
https://www.nxtbook.com/nxtbooks/aas/st_201212
https://www.nxtbook.com/nxtbooks/aas/st_201211
https://www.nxtbook.com/nxtbooks/aas/st_201210
https://www.nxtbook.com/nxtbooks/aas/st_201209
https://www.nxtbook.com/nxtbooks/aas/st_201208
https://www.nxtbook.com/nxtbooks/aas/st_201207
https://www.nxtbook.com/nxtbooks/aas/st_201206
https://www.nxtbook.com/nxtbooks/aas/st_201205
https://www.nxtbook.com/nxtbooks/aas/st_201204
https://www.nxtbook.com/nxtbooks/aas/st_201203
https://www.nxtbook.com/nxtbooks/aas/st_201202
https://www.nxtbook.com/nxtbooks/aas/st_201201
https://www.nxtbook.com/nxtbooks/aas/st_201112
https://www.nxtbook.com/nxtbooks/aas/st_201111
https://www.nxtbook.com/nxtbooks/aas/st_201110
https://www.nxtbook.com/nxtbooks/aas/st_201109
https://www.nxtbook.com/nxtbooks/aas/st_201108
https://www.nxtbook.com/nxtbooks/aas/st_201107
https://www.nxtbook.com/nxtbooks/aas/st_201106
https://www.nxtbook.com/nxtbooks/aas/st_201105
https://www.nxtbook.com/nxtbooks/aas/st_201104
https://www.nxtbook.com/nxtbooks/aas/st_201103
https://www.nxtbook.com/nxtbooks/aas/st_201102
https://www.nxtbook.com/nxtbooks/aas/st_201101
https://www.nxtbook.com/nxtbooks/aas/st_201012
https://www.nxtbook.com/nxtbooks/aas/st_201011
https://www.nxtbook.com/nxtbooks/aas/st_201010
https://www.nxtbook.com/nxtbooks/aas/st_201009
https://www.nxtbook.com/nxtbooks/aas/st_201008
https://www.nxtbook.com/nxtbooks/aas/st_201007
https://www.nxtbook.com/nxtbooks/aas/st_201006
https://www.nxtbook.com/nxtbooks/aas/st_201005
https://www.nxtbook.com/nxtbooks/aas/st_201004
https://www.nxtbook.com/nxtbooks/aas/st_201003
https://www.nxtbook.com/nxtbooks/aas/st_201002
https://www.nxtbook.com/nxtbooks/aas/st_201001
https://www.nxtbookmedia.com