Sky & Telescope - September 2020 - 62

DEEP-SKY DELIGHTS

by Ken Hewitt-White
N

62

SEPTEMBER 2 02 0 * SK Y & TELESCOPE

p EDGE-ON ISLAND UNIVERSE The large but relatively faint galaxy
NGC 7640, located in northwestern Andromeda, is fairly close in cosmic
terms - around 30 million light-years away. However, the edge-on
system is dimmed by the gas and dust in our own galaxy, as it lies very
close to the band of the Milky Way.

Last September, I had an itch to explore what I call the
Andromeda Outback. An inconspicuous tract of celestial real
estate stretching from the Great Square of Pegasus to Cassiopeia, the region is often overlooked and I hadn't visited it in
years. Opening Volume 1 of the Guide, I found what I needed
on Finder Chart 2-6 (page 23). In a square of sky 10° by 10°,

ESA / HUBBLE / N ASA

M

y bookshelves are full of treasured astronomy
resources I've collected throughout several decades
of observing. One of my favorite oldies is the
original two-volume Night Sky Observer's Guide by George
Kepple and Glen Sanner, published in 1998 (a third volume
covers the southern heavens; the recently published fourth
volume is titled Glories of the Milky Way to -54°). The blackand-white photos in those 1998 editions can't compare to
today's colorful digital images, but the handpicked descriptions by top deep-sky enthusiasts still interest me and I
enjoy perusing them.



Sky & Telescope - September 2020

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

Contents
Sky & Telescope - September 2020 - Cover1
Sky & Telescope - September 2020 - Cover2
Sky & Telescope - September 2020 - 1
Sky & Telescope - September 2020 - Contents
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