15h 14h 13h 12h
NGC 5634
M104
NGC 4856
NGC 4697
NGC 4731
M61M61M61M61
NCG 4536NCG 4536NCG 4536NCG 4536
M49M49
NGC 4762
NGC 4567
NGC 4438
NGC 4429
M89 NGC 4216
M87
M90 M86M84
M58
M59
M60
IC 972
NGC 4535NGC 4535
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ss
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cc
dd
ff
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Spica
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CRATERCRATER
CORVUSCORVUS
VIRGOVIRGO
WWW.ASTRONOMY.COM 55
from the core. Near the core,
they appear thick and bright.
One-third of the way from the
core to each arm’s end, how-
ever, their brightness and
thickness decrease
dramatically. A 7th-magnitude
star (SAO 119485) sits just 13'
east-northeast of this galaxy.
For a wonderful example
of interacting galaxies, turn
your telescope toward the
NGC 4435 and NGC 4438
NGC 4536
ADAM BLOCK/NOAO/AURA/NSF
ADAM BLOCK/MOUNT LEMMON SKYCENTER/UNIVERSITY OF ARIZONA
IN VIRGO
ASTRONOMY: RICK JOHNSON/RICHARD TALCOTT/ROEN KELLY