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Arp 47 is the galaxy quartet just about a minute south of the
brightest star at the top of the field. The field was centered on Mitchell
Anonymous 1447+1849, (actually just above the center) because the version of Megastar that
I was using at the time incorrectly identified it as the Arp. The current
version of Megastar has corrected this. I was lucky that the Arp did fall
within my field.
This Arp is class Spirals with
LSB Companions on Arms. Three of the companions are easily visible
in my image and, if you use the Atlas image to see where to look, a fourth is
just detectable above the noise level in the detail image. The primary and
three of the companions are in an almost
perfect east-west line; only the faint one at the west end is offset slightly to
the north. This was probably the best image I had ever taken when it was
acquired in July of 2004.
Atlas Image
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