Sky and Telescope - November 2017 - 66

S&T Test Report

click on the objects shown to select
them as Go To targets. There is, however, a good search function for deepsky targets and the like. Objects selected
from the search results are then shown
on the star chart, and you can slew to
them. As such, anyone who knows what
they want to observe can use Celestron
PWI to point the CGX at their objects of
interest. You can also slew to any celestial coordinates that you input.
The software has an extremely nice
and easy-to-use method for building a
pointing model that improves the Go
To accuracy. You simply select any star
shown on the map, center it in the telescope's field of view, and click one button to add it to the model. Do this for
half a dozen stars on both sides of the
meridian, and you likely have a model
with pointing accuracy much better
than 1 arcminute over the whole sky.
You can then save this model and reload
it for future observing sessions.
66

N O V E M B E R 2 0 17 * S K Y & T E L E S C O P E

Smooth Sailing?
I had very few problems while testing the CGX. One bump in the road
occurred while loading the Celestron
PWI software, but it very likely arose
because of software previously installed
on my laptop computer. The only mount
issue worthy of mention occurred when
I was running some tests by observing
stars in a noontime sky on a very hot
day (ambient temperature near 100°F)
and after the mount had been baking
in direct sunlight for more than an
hour. A command to home the scope
sent the mount to the correct position
for the right-ascension axis, but not
declination. A few more tries and the
right-ascension homing failed as well.
I shut the CGX down, only to find that
everything was back to normal when I
resumed testing that evening. The homing never failed after that day, leading
me to suspect that extreme heat was
the issue. Not surprising given that

p This composite image of the International
Space Station crossing the Sun's disk last June
21st might not have happened were it not for
the CGX's quick startup capability and the Sun
being included in its list of solar system targets.
A last-minute change in the weather gave the
author barely 5 minutes to open his observatory and set up for a burst of five exposures
with a Nikon D700 DSLR attached to an 85-mm
refractor operating at f/14.

parts of the mount in direct sunlight
were almost too hot to touch when the
problem occurred.
Small issues aside, the CGX fully
lived up to my expectations. Indeed, it
proved to be the nicest Celestron mount
I've yet tested. And it also delivered on
its under-promoted potential for remote
observing at an unprecedented low cost.
It's a mid-weight German equatorial
that I can strongly recommend.
■ DENNIS DI CICCO has covered
astronomical equipment in the pages of
Sky & Telescope for more than 40 years.



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
Sky and Telescope - November 2017 - 72
Sky and Telescope - November 2017 - 73
Sky and Telescope - November 2017 - 74
Sky and Telescope - November 2017 - 75
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
https://www.nxtbook.com/nxtbooks/aas/st_202501
https://www.nxtbook.com/nxtbooks/aas/st_202412
https://www.nxtbook.com/nxtbooks/aas/st_202411
https://www.nxtbook.com/nxtbooks/aas/st_202410
https://www.nxtbook.com/nxtbooks/aas/st_202409
https://www.nxtbook.com/nxtbooks/aas/st_202408
https://www.nxtbook.com/nxtbooks/aas/st_202407
https://www.nxtbook.com/nxtbooks/aas/st_202406
https://www.nxtbook.com/nxtbooks/aas/st_202405
https://www.nxtbook.com/nxtbooks/aas/st_202404_qr
https://www.nxtbook.com/nxtbooks/aas/st_202404
https://www.nxtbook.com/nxtbooks/aas/st_202403
https://www.nxtbook.com/nxtbooks/aas/st_202402
https://www.nxtbook.com/nxtbooks/aas/st_202401_aus
https://www.nxtbook.com/nxtbooks/aas/st_202401
https://www.nxtbook.com/nxtbooks/aas/st_202312_aus
https://www.nxtbook.com/nxtbooks/aas/st_202312
https://www.nxtbook.com/nxtbooks/aas/st_202311
https://www.nxtbook.com/nxtbooks/aas/st_202310
https://www.nxtbook.com/nxtbooks/aas/st_202309
https://www.nxtbook.com/nxtbooks/aas/st_202308
https://www.nxtbook.com/nxtbooks/aas/st_202307
https://www.nxtbook.com/nxtbooks/aas/st_202306
https://www.nxtbook.com/nxtbooks/aas/st_202305
https://www.nxtbook.com/nxtbooks/aas/st_202304
https://www.nxtbook.com/nxtbooks/aas/st_202304_qr
https://www.nxtbook.com/nxtbooks/aas/st_202303
https://www.nxtbook.com/nxtbooks/aas/st_202302
https://www.nxtbook.com/nxtbooks/aas/st_202301
https://www.nxtbook.com/nxtbooks/aas/st_202212
https://www.nxtbook.com/nxtbooks/aas/st_202211
https://www.nxtbook.com/nxtbooks/aas/st_202210
https://www.nxtbook.com/nxtbooks/aas/st_202209
https://www.nxtbook.com/nxtbooks/aas/st_202208
https://www.nxtbook.com/nxtbooks/aas/st_202207
https://www.nxtbook.com/nxtbooks/aas/st_202206
https://www.nxtbook.com/nxtbooks/aas/st_202205
https://www.nxtbook.com/nxtbooks/aas/st_202204
https://www.nxtbook.com/nxtbooks/aas/st_202203
https://www.nxtbook.com/nxtbooks/aas/st_202202
https://www.nxtbook.com/nxtbooks/aas/st_202201
https://www.nxtbook.com/nxtbooks/aas/st_202112
https://www.nxtbook.com/nxtbooks/aas/st_202111
https://www.nxtbook.com/nxtbooks/aas/st_202110
https://www.nxtbook.com/nxtbooks/aas/st_202109
https://www.nxtbook.com/nxtbooks/aas/st_202108
https://www.nxtbook.com/nxtbooks/aas/st_202107
https://www.nxtbook.com/nxtbooks/aas/st_202106
https://www.nxtbook.com/nxtbooks/aas/st_202105
https://www.nxtbook.com/nxtbooks/aas/st_202104
https://www.nxtbook.com/nxtbooks/aas/st_202103
https://www.nxtbook.com/nxtbooks/aas/st_202102
https://www.nxtbook.com/nxtbooks/aas/st_202101
https://www.nxtbook.com/nxtbooks/aas/skywatch_2021
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/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