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ASTRO: NGC 3433 and a lot more



 
 
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  #1  
Old May 30th 12, 07:30 AM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
external usenet poster
 
Posts: 3,085
Default ASTRO: NGC 3433 and a lot more

NGC 3443 Is a spiral galaxy about 140 million light-years away in Leo 2
degrees southeast of M96. At first glance or in short exposures it
appears as a quite normal 2 armed grand design spiral. But looking
closer there are fainter outer arms that are odd arm segments. This one
could have made Arp's split arm category. The main arm going under the
south side of the galaxy suddenly ends and two segments begin. One is
straight and angled up sharply compared to the path the main arm was
taking. The other follows the normal curved path but goes wide as if
being pulled from the galaxy and extends much further than any other arm
segment. Odd as there's nothing in the field that could have caused
this. NED classes it as SA(s)C while the NGC project says Sc I.

There's one other NGC galaxy in the image. It is NGC 3444 toward the
left edge. It is an Sbc spiral about 440 million light-years away.

While there are many other galaxies in the image only a very few have
any redshift detail. All lie at least twice as far away. There are
what appears to be two obvious galaxy clusters on the east side of my
image and one on the right side. But Ned shows none on the right side
where one appears to be and two pairs on the east side.

The first pair consists of WHL J105239.2+101148 which consists of 15
members with no size given at a distance of about 2.7 billion
light-years. The anchor galaxy is shown with a slightly different
distance but when rounded to 2 significant digits they appear the same.
Thus I show it with 2.7 listed twice. North of it, forming the pair,
is ZwCl 1050.0+1030 which gives a size of 17 minutes with 97 members but
no distance. It is labeled as being "compact." It would include over
half my frame.

The other pair also consists of a larger Zwicky cluster that encompasses
a smaller cluster. In this cast the small cluster is GMBCG
J163.14180+10.07057 to the south of the previous pair. It is listed as
having 11 members at a distance of 2.6 billion light-years. Almost the
distance of the other non Zwicky cluster. It is said to have 11
members. Again no size is provided. In this case the redshift for the
BCG is exactly the same as that of the cluster. This cluster appears to
be part of ZwCl 1049.8+1017 with 66 members in a 10 minute diameter
area. Again no distance is given.

There are 6 asteroids in the image. The brightest is (13220)
Kashiwagura at magnitude 17.3. The naming citation reads: "Mitsuru
Kashiwagura (b. 1950), a high school teacher in Ooe, Yamagata
prefecture, has been observing occultations since 1994." It was
discovered by T. Okuni on July 1, 1997.

The other asteroids a
(134218) 2005 UE439 at magnitude 19.9
(116865) 2004 FE98 at magnitude 19.4
2004 FM14 at magnitude 19.0
(87711) 2000 SE33 at magnitude 19.5
(71686) 2000 FU30 at magnitude 18.8

All are labeled in the annotated image. The track of (134218) 2005
UE439 is hard to see as it runs into the southern part of NGC 3443.

As usual, labels on the annotated image are to the right of the object
unless a line indicates otherwise. Distances are all in billions of
light-years.

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

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

Attached Thumbnails
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Name:	NGC3433L4X10RGB2X10X3R1.JPG
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ID:	4111  Click image for larger version

Name:	NGC3433L4X10RGB2X10X3R1-ID.JPG
Views:	144
Size:	144.5 KB
ID:	4112  Click image for larger version

Name:	NGC3433L4X10RGB2X10X3R1CROP150.JPG
Views:	107
Size:	129.5 KB
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  #2  
Old May 31st 12, 09:47 PM posted to alt.binaries.pictures.astro
George[_6_]
external usenet poster
 
Posts: 124
Default ASTRO: NGC 3433 and a lot more



"Rick Johnson" wrote in message
. com...

NGC 3443 Is a spiral galaxy about 140 million light-years away in Leo 2
degrees southeast of M96. At first glance or in short exposures it
appears as a quite normal 2 armed grand design spiral. But looking
closer there are fainter outer arms that are odd arm segments. This one
could have made Arp's split arm category. The main arm going under the
south side of the galaxy suddenly ends and two segments begin. One is
straight and angled up sharply compared to the path the main arm was
taking. The other follows the normal curved path but goes wide as if
being pulled from the galaxy and extends much further than any other arm
segment. Odd as there's nothing in the field that could have caused
this. NED classes it as SA(s)C while the NGC project says Sc I.

There's one other NGC galaxy in the image. It is NGC 3444 toward the
left edge. It is an Sbc spiral about 440 million light-years away.

While there are many other galaxies in the image only a very few have
any redshift detail. All lie at least twice as far away. There are
what appears to be two obvious galaxy clusters on the east side of my
image and one on the right side. But Ned shows none on the right side
where one appears to be and two pairs on the east side.

The first pair consists of WHL J105239.2+101148 which consists of 15
members with no size given at a distance of about 2.7 billion
light-years. The anchor galaxy is shown with a slightly different
distance but when rounded to 2 significant digits they appear the same.
Thus I show it with 2.7 listed twice. North of it, forming the pair,
is ZwCl 1050.0+1030 which gives a size of 17 minutes with 97 members but
no distance. It is labeled as being "compact." It would include over
half my frame.

The other pair also consists of a larger Zwicky cluster that encompasses
a smaller cluster. In this cast the small cluster is GMBCG
J163.14180+10.07057 to the south of the previous pair. It is listed as
having 11 members at a distance of 2.6 billion light-years. Almost the
distance of the other non Zwicky cluster. It is said to have 11
members. Again no size is provided. In this case the redshift for the
BCG is exactly the same as that of the cluster. This cluster appears to
be part of ZwCl 1049.8+1017 with 66 members in a 10 minute diameter
area. Again no distance is given.

There are 6 asteroids in the image. The brightest is (13220)
Kashiwagura at magnitude 17.3. The naming citation reads: "Mitsuru
Kashiwagura (b. 1950), a high school teacher in Ooe, Yamagata
prefecture, has been observing occultations since 1994." It was
discovered by T. Okuni on July 1, 1997.

The other asteroids a
(134218) 2005 UE439 at magnitude 19.9
(116865) 2004 FE98 at magnitude 19.4
2004 FM14 at magnitude 19.0
(87711) 2000 SE33 at magnitude 19.5
(71686) 2000 FU30 at magnitude 18.8

All are labeled in the annotated image. The track of (134218) 2005
UE439 is hard to see as it runs into the southern part of NGC 3443.

As usual, labels on the annotated image are to the right of the object
unless a line indicates otherwise. Distances are all in billions of
light-years.

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

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

That's an awesome image, Rick. Your galaxy images are really great.

George

  #3  
Old June 5th 12, 09:37 PM posted to alt.binaries.pictures.astro
Stefan Lilge
external usenet poster
 
Posts: 2,269
Default ASTRO: NGC 3433 and a lot more

Beautiful image Rick, a nice face on that I have not noticed before.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
. com...
NGC 3443 Is a spiral galaxy about 140 million light-years away in Leo 2
degrees southeast of M96. At first glance or in short exposures it
appears as a quite normal 2 armed grand design spiral. But looking
closer there are fainter outer arms that are odd arm segments. This one
could have made Arp's split arm category. The main arm going under the
south side of the galaxy suddenly ends and two segments begin. One is
straight and angled up sharply compared to the path the main arm was
taking. The other follows the normal curved path but goes wide as if
being pulled from the galaxy and extends much further than any other arm
segment. Odd as there's nothing in the field that could have caused
this. NED classes it as SA(s)C while the NGC project says Sc I.

There's one other NGC galaxy in the image. It is NGC 3444 toward the
left edge. It is an Sbc spiral about 440 million light-years away.

While there are many other galaxies in the image only a very few have
any redshift detail. All lie at least twice as far away. There are
what appears to be two obvious galaxy clusters on the east side of my
image and one on the right side. But Ned shows none on the right side
where one appears to be and two pairs on the east side.

The first pair consists of WHL J105239.2+101148 which consists of 15
members with no size given at a distance of about 2.7 billion
light-years. The anchor galaxy is shown with a slightly different
distance but when rounded to 2 significant digits they appear the same.
Thus I show it with 2.7 listed twice. North of it, forming the pair,
is ZwCl 1050.0+1030 which gives a size of 17 minutes with 97 members but
no distance. It is labeled as being "compact." It would include over
half my frame.

The other pair also consists of a larger Zwicky cluster that encompasses
a smaller cluster. In this cast the small cluster is GMBCG
J163.14180+10.07057 to the south of the previous pair. It is listed as
having 11 members at a distance of 2.6 billion light-years. Almost the
distance of the other non Zwicky cluster. It is said to have 11
members. Again no size is provided. In this case the redshift for the
BCG is exactly the same as that of the cluster. This cluster appears to
be part of ZwCl 1049.8+1017 with 66 members in a 10 minute diameter
area. Again no distance is given.

There are 6 asteroids in the image. The brightest is (13220)
Kashiwagura at magnitude 17.3. The naming citation reads: "Mitsuru
Kashiwagura (b. 1950), a high school teacher in Ooe, Yamagata
prefecture, has been observing occultations since 1994." It was
discovered by T. Okuni on July 1, 1997.

The other asteroids a
(134218) 2005 UE439 at magnitude 19.9
(116865) 2004 FE98 at magnitude 19.4
2004 FM14 at magnitude 19.0
(87711) 2000 SE33 at magnitude 19.5
(71686) 2000 FU30 at magnitude 18.8

All are labeled in the annotated image. The track of (134218) 2005
UE439 is hard to see as it runs into the southern part of NGC 3443.

As usual, labels on the annotated image are to the right of the object
unless a line indicates otherwise. Distances are all in billions of
light-years.

14" LX200R @ f/10, L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

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



 




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