ASTRO: NGC 7223 et al

NGC 7223 is a face on barred spiral in Lacerta about 200 million
light-years away. It is part of a group of 18 galaxies known as the
LDCE 1503 group. It would seem to qualify for Arp's Atlas of Peculiar
Galaxies in two categories. It is a three arm spiral and a better
example of this than some in his atlas. It also has a nearby companion
he likely would consider as a high surface brightness companion on an
arm. The "companion" is Holm 788B. NGC 7223 is also Holm 788A. I
found no distance estimates for Holm 788B so it is unknown if it is a
true companion. To me it appears to be more distant but then all
galaxies in the image that have distance data are part of the group and
thus at about the same distance as NGC 7223. It would be the lone
exception. NGC 7223 is classed by NED as SB(rs)bc. The NGC project
using a different classification system says SBc

The other major spiral is UGC 11927. NED classes it as Sb. It's color
is very different from NGC 7223. Below it is PGC 068169. Note that The
Sky 6's data base shows UGC 11927 as being PGC 068169. This is an error
that had me confused for a bit. UGC 11927's PGC designation is PGC
68171. The Sky 6 hasn't heard of it.

CGCG 530-014 has two blue objects just below it. They aren't stars. I
can't tell if they are part of the galaxy or a background galaxy or
galaxies.

The field being located near the Milky Was hasn't yet had its Sloan data
entered in the NED database. This greatly limited the galaxies with any
data. All listed in NED are labeled in the annotated image by name,
even those without distance data.

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

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

Mighty image Rick. It looks like you even managed to show HII regions in NGC
7223.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
.com...

NGC 7223 is a face on barred spiral in Lacerta about 200 million
light-years away. It is part of a group of 18 galaxies known as the
LDCE 1503 group. It would seem to qualify for Arp's Atlas of Peculiar
Galaxies in two categories. It is a three arm spiral and a better
example of this than some in his atlas. It also has a nearby companion
he likely would consider as a high surface brightness companion on an
arm. The "companion" is Holm 788B. NGC 7223 is also Holm 788A. I
found no distance estimates for Holm 788B so it is unknown if it is a
true companion. To me it appears to be more distant but then all
galaxies in the image that have distance data are part of the group and
thus at about the same distance as NGC 7223. It would be the lone
exception. NGC 7223 is classed by NED as SB(rs)bc. The NGC project
using a different classification system says SBc

The other major spiral is UGC 11927. NED classes it as Sb. It's color
is very different from NGC 7223. Below it is PGC 068169. Note that The
Sky 6's data base shows UGC 11927 as being PGC 068169. This is an error
that had me confused for a bit. UGC 11927's PGC designation is PGC
68171. The Sky 6 hasn't heard of it.

CGCG 530-014 has two blue objects just below it. They aren't stars. I
can't tell if they are part of the galaxy or a background galaxy or
galaxies.

The field being located near the Milky Was hasn't yet had its Sloan data
entered in the NED database. This greatly limited the galaxies with any
data. All listed in NED are labeled in the annotated image by name,
even those without distance data.

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

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