ASTRO: NGC 4775 A Slightly Sloshed Galaxy

NGC 4775 is a small spiral with an off center core and distorted spiral
arms. It is located in Virgo (right in the geostationary satellite belt
which created havoc with satellite trails right through the galaxy,
several right on top of each other making removal "interesting" to say
the least. Red shift puts it 88 million light-years distant while a
single Tully-Fisher determination says 87 million light-years. A
surprisingly similar result. If right it is beyond the main Virgo
Cluster galaxies. NED classifies it as SA(s)d while the NGC project
says Sc. At the 88 million light-year distance it is about 54,000
light-years across. Rather typical for a spiral galaxy.

This image was hurt severely by clouds. Only one blue frame and one
luminance frame were reasonably free of clouds. This dropped my
limiting magnitude severely. There's a lot more background galaxies
than I was able to show. Though since this field is outside the Sloan
Survey field only the brighter ones had any data in NED. All but one
galaxy in the field that NED has redshift data for were seen in my
cloudy image. The Abell Galaxy Cluster 1634 is centered southwest of
NGC 4775. It is listed as class 1 which is 30 to 49 galaxies in an 18'
diameter field with a distance of 2.4 billion light-years. Several of
the galaxies have redshifts that match this distance or nearly do. It
is listed as morphology III which has no anchoring cluster galaxy. I've
drawn a line to the position NED has for its center though they list its
center only vaguely within a 2.5' error circle.

14" LX200R @ f/10, L=4x10' RGB=2x10' STL-11000XM, Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net

Rick,

that's a small but detailed object. Probably too faint for me though...

Stefan

"Rick Johnson" schrieb im Newsbeitrag
...

NGC 4775 is a small spiral with an off center core and distorted spiral
arms. It is located in Virgo (right in the geostationary satellite belt
which created havoc with satellite trails right through the galaxy,
several right on top of each other making removal "interesting" to say
the least. Red shift puts it 88 million light-years distant while a
single Tully-Fisher determination says 87 million light-years. A
surprisingly similar result. If right it is beyond the main Virgo
Cluster galaxies. NED classifies it as SA(s)d while the NGC project
says Sc. At the 88 million light-year distance it is about 54,000
light-years across. Rather typical for a spiral galaxy.

This image was hurt severely by clouds. Only one blue frame and one
luminance frame were reasonably free of clouds. This dropped my
limiting magnitude severely. There's a lot more background galaxies
than I was able to show. Though since this field is outside the Sloan
Survey field only the brighter ones had any data in NED. All but one
galaxy in the field that NED has redshift data for were seen in my
cloudy image. The Abell Galaxy Cluster 1634 is centered southwest of
NGC 4775. It is listed as class 1 which is 30 to 49 galaxies in an 18'
diameter field with a distance of 2.4 billion light-years. Several of
the galaxies have redshifts that match this distance or nearly do. It
is listed as morphology III which has no anchoring cluster galaxy. I've
drawn a line to the position NED has for its center though they list its
center only vaguely within a 2.5' error circle.

14" LX200R @ f/10, L=4x10' RGB=2x10' STL-11000XM, Paramount ME

Rick
--
Prefix is correct. Domain is arvig dot net