ASTRO: UGC 0006

UGC 6 is a merger in progress in the eastern side of the Great Square of
Pegasus. It is located about 280 million light-years by redshift and
about 330 million light-years by Tully Fisher. The odd loops are likely
stars ripped from the merging galaxy and mark its path of doom. I
didn't realize it also had very faint sprays of stars that arc around it
from the northwest to the southwest. They extend some 120,000
light-years from the galaxy's core.

At the top of the image is the very blue galaxy UGC 00011 at a redshift
distance of 190 million light-years. There is one distance measurement
using Cepheid variables listed by NED that is apparently very wrong as
it says it is only 160,000 light-years from us which would make it part
of the local group, likely a satellite of the Milky Way, and easily
resolved into stars. Instead I see a distant "sloshed" galaxy. That's
one in which the core has been pulled way off center. Usually this is
due to passing by some massive galaxy. In this case there's nothing in
the area so I'm puzzled how it got that way. I found nothing much on
the galaxy and certainly nothing addressing this issue. In any case it
is far closer than UGC 6 and thus unrelated to it or its "companion" to
its southeast.

The "companion" is a small spiral at about the same distance as UGC 6,
so not related to UGC 11. NED calls it UGC 11 NOTES01. It also carries
its own designation in other catalogs. The annotated image uses the
LEDA catalog number for it. Of the three galaxies with redshift data it
is the only normal looking one.

Superimposed on it is 2MASX J00033471+2204499 just south of the nucleus.
I took it for a star but in the Sloan image it is very rectangular.
That was lost in my much poorer seeing. Other than that it does appear
quite starlike even to the Sloan scope. No redshift is given. It's
brightness would argue it is closer but that's not necessarily the case.
Only a couple other galaxies are even listed in NED, none have much
information and are known only by their position which is most of their
catalog "name".

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

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

An interesting little bugger. The faint halo seems to be _much_ larger than
the galaxy itself.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
...

UGC 6 is a merger in progress in the eastern side of the Great Square of
Pegasus. It is located about 280 million light-years by redshift and
about 330 million light-years by Tully Fisher. The odd loops are likely
stars ripped from the merging galaxy and mark its path of doom. I
didn't realize it also had very faint sprays of stars that arc around it
from the northwest to the southwest. They extend some 120,000
light-years from the galaxy's core.

At the top of the image is the very blue galaxy UGC 00011 at a redshift
distance of 190 million light-years. There is one distance measurement
using Cepheid variables listed by NED that is apparently very wrong as
it says it is only 160,000 light-years from us which would make it part
of the local group, likely a satellite of the Milky Way, and easily
resolved into stars. Instead I see a distant "sloshed" galaxy. That's
one in which the core has been pulled way off center. Usually this is
due to passing by some massive galaxy. In this case there's nothing in
the area so I'm puzzled how it got that way. I found nothing much on
the galaxy and certainly nothing addressing this issue. In any case it
is far closer than UGC 6 and thus unrelated to it or its "companion" to
its southeast.

The "companion" is a small spiral at about the same distance as UGC 6,
so not related to UGC 11. NED calls it UGC 11 NOTES01. It also carries
its own designation in other catalogs. The annotated image uses the
LEDA catalog number for it. Of the three galaxies with redshift data it
is the only normal looking one.

Superimposed on it is 2MASX J00033471+2204499 just south of the nucleus.
I took it for a star but in the Sloan image it is very rectangular.
That was lost in my much poorer seeing. Other than that it does appear
quite starlike even to the Sloan scope. No redshift is given. It's
brightness would argue it is closer but that's not necessarily the case.
Only a couple other galaxies are even listed in NED, none have much
information and are known only by their position which is most of their
catalog "name".

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

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

On 3/10/2014 4:18 PM, Stefan Lilge wrote:
An interesting little bugger. The faint halo seems to be _much_ larger
than the galaxy itself.

I didn't realize it was there, only the bright plumes showed in the DSS
frames I looked at. Hints if I really stretch the heck out of them but
didn't at the time. If the weather is better next fall I'll try again
with a lot more time to pull out the faint stuff.

Rick

Stefan

"Rick Johnson" schrieb im Newsbeitrag
...

UGC 6 is a merger in progress in the eastern side of the Great Square of
Pegasus. It is located about 280 million light-years by redshift and
about 330 million light-years by Tully Fisher. The odd loops are likely
stars ripped from the merging galaxy and mark its path of doom. I
didn't realize it also had very faint sprays of stars that arc around it
from the northwest to the southwest. They extend some 120,000
light-years from the galaxy's core.

At the top of the image is the very blue galaxy UGC 00011 at a redshift
distance of 190 million light-years. There is one distance measurement
using Cepheid variables listed by NED that is apparently very wrong as
it says it is only 160,000 light-years from us which would make it part
of the local group, likely a satellite of the Milky Way, and easily
resolved into stars. Instead I see a distant "sloshed" galaxy. That's
one in which the core has been pulled way off center. Usually this is
due to passing by some massive galaxy. In this case there's nothing in
the area so I'm puzzled how it got that way. I found nothing much on
the galaxy and certainly nothing addressing this issue. In any case it
is far closer than UGC 6 and thus unrelated to it or its "companion" to
its southeast.

The "companion" is a small spiral at about the same distance as UGC 6,
so not related to UGC 11. NED calls it UGC 11 NOTES01. It also carries
its own designation in other catalogs. The annotated image uses the
LEDA catalog number for it. Of the three galaxies with redshift data it
is the only normal looking one.

Superimposed on it is 2MASX J00033471+2204499 just south of the nucleus.
I took it for a star but in the Sloan image it is very rectangular.
That was lost in my much poorer seeing. Other than that it does appear
quite starlike even to the Sloan scope. No redshift is given. It's
brightness would argue it is closer but that's not necessarily the case.
Only a couple other galaxies are even listed in NED, none have much
information and are known only by their position which is most of their
catalog "name".

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

Rick


--
Prefix is correct. Domain is arvig dot net