ASTRO: IC 43

IC 43 is a nice face on spiral with some odd arm structure. It is
located in Andromeda a bit south southwest of Delta and is about 210
million light-years distant. At that distance I measure its size as
about 94,000 light-years across. To the north is UGC 00449, a near edge
on spiral and likely companion to IC 43. It has what appears to me to
be its own possible companion hanging off its southwestern arm. Yet
nothing I found mentions it as a separate galaxy. It isn't mentioned in
NED but then many bright galaxies aren't mentioned in NED including one
to the southwest that UGC 449 seems to be pointing to. Still I find it
odd that being so close to UGC 449 it isn't mentioned in any literature
I found.

To the northeast of IC 43 is the location of IC 45. This one is either
non-existent or is the pair of stars I point to in the annotated image.
The NGC Project has an interesting history of this lost object.

The field is poorly researched. Only 3 galaxies in the image have
redshift data. What few are even listed in NED come from the 2MASS deep
IR survey and have little information. One of those is from the 2
micron flat galaxy catalog Most aren't listed at all. A couple are so
star-like I couldn't even see them as galaxies on the Sloan image of the
area. One, 2MASX J00430635+2946551 is a very thin red galaxy that to me
fits the 2 micron flat galaxy catalog but apparently didn't make the
cut. It is mostly hidden between two bright stars toward the upper left
of my image.

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 neat little galaxy. Somehow "IC 43" sounds like an emission nebula
to me, probably because of IC 443.

Stefan


"Rick Johnson" schrieb im Newsbeitrag
...

IC 43 is a nice face on spiral with some odd arm structure. It is
located in Andromeda a bit south southwest of Delta and is about 210
million light-years distant. At that distance I measure its size as
about 94,000 light-years across. To the north is UGC 00449, a near edge
on spiral and likely companion to IC 43. It has what appears to me to
be its own possible companion hanging off its southwestern arm. Yet
nothing I found mentions it as a separate galaxy. It isn't mentioned in
NED but then many bright galaxies aren't mentioned in NED including one
to the southwest that UGC 449 seems to be pointing to. Still I find it
odd that being so close to UGC 449 it isn't mentioned in any literature
I found.

To the northeast of IC 43 is the location of IC 45. This one is either
non-existent or is the pair of stars I point to in the annotated image.
The NGC Project has an interesting history of this lost object.

The field is poorly researched. Only 3 galaxies in the image have
redshift data. What few are even listed in NED come from the 2MASS deep
IR survey and have little information. One of those is from the 2
micron flat galaxy catalog Most aren't listed at all. A couple are so
star-like I couldn't even see them as galaxies on the Sloan image of the
area. One, 2MASX J00430635+2946551 is a very thin red galaxy that to me
fits the 2 micron flat galaxy catalog but apparently didn't make the
cut. It is mostly hidden between two bright stars toward the upper left
of my image.

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

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