Elliptical Galaxy M-86 ( NGC 4406 )
This is a 10 minute exposure with
an ST-6 CCD camera thru Kopernik's 20-inch telescope. The field of view
is about 5x7 arc minutes, with south at the top.
Quote from the Deep
Sky Field Guide to Uranometria 2000:
Burnham's Celestial Handbook: M-86
is one of the eccentrics of the Virgo Galaxy Cluster, since it shows no
red shift at all....... If it is actually a member of the Virgo aggregation,
it must have an abnormally high individual space motion, and is possibly
escaping from the cluster. There is the possibility, also, that M-86 is
actually a foreground system, merely seen in the same direction as the
Virgo Cloud, but actually much closer to us; this was the solution adopted
by E. Holmberg, who found a probable distance of slightly under 20 million
light years, an absolute magnitude of -19.1, and a computed mass of about
130 billion solar masses. M86 is one of the redder galaxies in this region,
with an integrated spectral type of about G7.
Very bright center, smooth nebulosity,
faint envelope in outer parts. Companion superimposed at 1.4 minutes
North East. (This is 16.7 magnitude elliptical galaxy PGC 40659
seen below M-86 in the Kopernik image. Also, note another galaxy in the
lower right of the image; it's 18.9 magnitude elliptical galaxy PGC 40691)
Quote by Charles
Messier (March 18th, 1781): “Nebula
without star in Virgo on the same parallel and very near the nebula No.
84 above: they both have the same appearance and are seen together
in the same field in the telescope.”
M-86, NGC 4406
Dec: +12° 56' 49" Epoch 2000
Size (mins): 9.0' x 5.8'
George Normandin, KAS
June 1st, 2000