A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Others » Astro Pictures
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

ASTRO: Arp 188/UGC10214 and SN 2008dq



 
 
Thread Tools Display Modes
  #1  
Old July 2nd 08, 07:46 PM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
external usenet poster
 
Posts: 3,085
Default ASTRO: Arp 188/UGC10214 and SN 2008dq

Finally a night with stars after 2 months. Unfortunately the dimmest
ones visible were about mag 2.8 overhead rather than 6.5 like I normally
have and clouds kept blocking the light. So while I say 60 minutes of L
data its more like 15 under "normal" conditions here.

I have watched a lot of Arp galaxies I'd hoped to take move too far west
during my 2 months of clouds and super bright moon right in the imaging
area of the sky. So when it looked like it would clear the night of
July 1 (UTC) I started looking for an Arp that was still around. Arp
188/UGC 10214 The Tadpole Galaxy was only an hour past the meridian when
it got dark enough to image so it became my target. First sub showed
something wrong. A star where the DSS plates showed none. Turned out
to be a SN found by the Lick SN survey scope June 25.3. Yes the decimal
is correct as it indicates 3 tens of a day past midnight UTC. Anyway it
was reported at mag 18.3. I get Mag 18 but there's the glow of the
galaxy to contend with so I may have not dealt with that properly.

Lots of faint fuzzies but I've not had a chance to investigate them as
yet. You're on your own this time.

The SN is 6.2" north and 7.2" west of the nucleus. I didn't put in
indicator marks as it is the only star near the nucleus so easy to spot.

14" LX200R @ f/10, L=6x10' binned 2x2, RGB=2x10 binned 3x3, STL-11000XM,
Paramount ME

While seeing was great through all the haze what with the lousy
transparency and only 120 minutes of dark skies I had no time for 1x1
imaging.

For the Lick discovery photo see:
http://www.supernovae.net/snimages/

It is about the 5th image down as I type this. Direct link without data is:
http://astro.berkeley.edu/~bait/2008/sn2008-u10214.gif


Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Attached Thumbnails
Click image for larger version

Name:	UGC10214ARP188L6X10RGB2X10X3r.jpg
Views:	574
Size:	350.4 KB
ID:	2005  
  #2  
Old July 2nd 08, 08:26 PM posted to alt.binaries.pictures.astro
Doug W.
external usenet poster
 
Posts: 264
Default ASTRO: Arp 188/UGC10214 and SN 2008dq

The system still works!... good detail and can see the star band... I have
never got a good image of this one... hope I get a chance at it too.

--
Regards, Doug W.
www.photonsfate.com
"Rick Johnson" wrote in message
. com...
Finally a night with stars after 2 months. Unfortunately the dimmest
ones visible were about mag 2.8 overhead rather than 6.5 like I normally
have and clouds kept blocking the light. So while I say 60 minutes of L
data its more like 15 under "normal" conditions here.

I have watched a lot of Arp galaxies I'd hoped to take move too far west
during my 2 months of clouds and super bright moon right in the imaging
area of the sky. So when it looked like it would clear the night of
July 1 (UTC) I started looking for an Arp that was still around. Arp
188/UGC 10214 The Tadpole Galaxy was only an hour past the meridian when
it got dark enough to image so it became my target. First sub showed
something wrong. A star where the DSS plates showed none. Turned out
to be a SN found by the Lick SN survey scope June 25.3. Yes the decimal
is correct as it indicates 3 tens of a day past midnight UTC. Anyway it
was reported at mag 18.3. I get Mag 18 but there's the glow of the
galaxy to contend with so I may have not dealt with that properly.

Lots of faint fuzzies but I've not had a chance to investigate them as
yet. You're on your own this time.

The SN is 6.2" north and 7.2" west of the nucleus. I didn't put in
indicator marks as it is the only star near the nucleus so easy to spot.

14" LX200R @ f/10, L=6x10' binned 2x2, RGB=2x10 binned 3x3, STL-11000XM,
Paramount ME

While seeing was great through all the haze what with the lousy
transparency and only 120 minutes of dark skies I had no time for 1x1
imaging.

For the Lick discovery photo see:
http://www.supernovae.net/snimages/

It is about the 5th image down as I type this. Direct link without data
is:
http://astro.berkeley.edu/~bait/2008/sn2008-u10214.gif


Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".



  #3  
Old July 2nd 08, 09:21 PM posted to alt.binaries.pictures.astro
Stefan Lilge
external usenet poster
 
Posts: 2,269
Default ASTRO: Arp 188/UGC10214 and SN 2008dq

Very good image Rick. Amazing you even got good colour under such
conditions.

Stefan

"Rick Johnson" schrieb im Newsbeitrag
. com...
Finally a night with stars after 2 months. Unfortunately the dimmest
ones visible were about mag 2.8 overhead rather than 6.5 like I normally
have and clouds kept blocking the light. So while I say 60 minutes of L
data its more like 15 under "normal" conditions here.

I have watched a lot of Arp galaxies I'd hoped to take move too far west
during my 2 months of clouds and super bright moon right in the imaging
area of the sky. So when it looked like it would clear the night of
July 1 (UTC) I started looking for an Arp that was still around. Arp
188/UGC 10214 The Tadpole Galaxy was only an hour past the meridian when
it got dark enough to image so it became my target. First sub showed
something wrong. A star where the DSS plates showed none. Turned out
to be a SN found by the Lick SN survey scope June 25.3. Yes the decimal
is correct as it indicates 3 tens of a day past midnight UTC. Anyway it
was reported at mag 18.3. I get Mag 18 but there's the glow of the
galaxy to contend with so I may have not dealt with that properly.

Lots of faint fuzzies but I've not had a chance to investigate them as
yet. You're on your own this time.

The SN is 6.2" north and 7.2" west of the nucleus. I didn't put in
indicator marks as it is the only star near the nucleus so easy to spot.

14" LX200R @ f/10, L=6x10' binned 2x2, RGB=2x10 binned 3x3, STL-11000XM,
Paramount ME

While seeing was great through all the haze what with the lousy
transparency and only 120 minutes of dark skies I had no time for 1x1
imaging.

For the Lick discovery photo see:
http://www.supernovae.net/snimages/

It is about the 5th image down as I type this. Direct link without data
is:
http://astro.berkeley.edu/~bait/2008/sn2008-u10214.gif


Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".



  #4  
Old July 3rd 08, 12:46 AM posted to alt.binaries.pictures.astro
Rick Johnson[_2_]
external usenet poster
 
Posts: 3,085
Default ASTRO: Arp 188/UGC10214 and SN 2008dq

What I do in this type of situation -- very poor color data -- is to use
LLRGB. You make a standard LRGB but set the L image at 50%. This gives
better color to the LRGB but the low resolution of the RGB. Then I push
the color saturation a bit. This gives a much better RGB image than
the original with less noise but its still fuzzy just not as fuzzy or as
muted as the original RGB. The point is you get a good RGB with low
noise compared to just pushing the saturation of the RGB that was mostly
noise. Now use this as the RGB with the original L image. Now you can
again push the saturation of the final 100% combine as the RGB is much
cleaner this go around.

See Gendler's link for details. It really works. Not as well as good
color data in the first place but it rescues situations like this one.
On a good night but with time limited due to dawn or clouds or the
object getting too low such that I can get only one frame of each color
it is a life saver. One round of color is just too little even on a
perfect night. But with the LLRGB technique it's almost equal to my
normal 2 10 minute color frames using standard LRGB.
http://www.robgendlerastropics.com/LLRGB.html

BTW, thunderstorms returned last night and its been cloudy with high
winds all day here. Doesn't appear it will improve until tomorrow --
maybe.

So today we were clearing more of the dozens of downed trees from prior
storms when suddenly a 2' diameter popple fell right at us. We were on
a steep slope with tons of downed limbs so couldn't move in time.
Fortunately it got hung up mid fall. Branches and debris rained down
but that sure beat a ton of wood falling on us. Now we have that "widow
maker" to deal with. I'm in firewood for years to come! Just wish I
was 20 years younger to have the stamina to work 8 hours a day on it.
Seems I run out of gas before the chain saw any more

Rick


Stefan Lilge wrote:
Very good image Rick. Amazing you even got good colour under such
conditions.

Stefan

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

Finally a night with stars after 2 months. Unfortunately the dimmest
ones visible were about mag 2.8 overhead rather than 6.5 like I normally
have and clouds kept blocking the light. So while I say 60 minutes of L
data its more like 15 under "normal" conditions here.

I have watched a lot of Arp galaxies I'd hoped to take move too far west
during my 2 months of clouds and super bright moon right in the imaging
area of the sky. So when it looked like it would clear the night of
July 1 (UTC) I started looking for an Arp that was still around. Arp
188/UGC 10214 The Tadpole Galaxy was only an hour past the meridian when
it got dark enough to image so it became my target. First sub showed
something wrong. A star where the DSS plates showed none. Turned out
to be a SN found by the Lick SN survey scope June 25.3. Yes the decimal
is correct as it indicates 3 tens of a day past midnight UTC. Anyway it
was reported at mag 18.3. I get Mag 18 but there's the glow of the
galaxy to contend with so I may have not dealt with that properly.

Lots of faint fuzzies but I've not had a chance to investigate them as
yet. You're on your own this time.

The SN is 6.2" north and 7.2" west of the nucleus. I didn't put in
indicator marks as it is the only star near the nucleus so easy to spot.

14" LX200R @ f/10, L=6x10' binned 2x2, RGB=2x10 binned 3x3, STL-11000XM,
Paramount ME

While seeing was great through all the haze what with the lousy
transparency and only 120 minutes of dark skies I had no time for 1x1
imaging.

For the Lick discovery photo see:
http://www.supernovae.net/snimages/

It is about the 5th image down as I type this. Direct link without data
is:
http://astro.berkeley.edu/~bait/2008/sn2008-u10214.gif


Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".


  #5  
Old July 3rd 08, 02:53 AM posted to alt.binaries.pictures.astro
Richard Crisp
external usenet poster
 
Posts: 100
Default ASTRO: Arp 188/UGC10214 and SN 2008dq

totally cool Rick

That tail reminds me of a spinning top

awesome!


"Rick Johnson" wrote in message
. com...
Finally a night with stars after 2 months. Unfortunately the dimmest
ones visible were about mag 2.8 overhead rather than 6.5 like I normally
have and clouds kept blocking the light. So while I say 60 minutes of L
data its more like 15 under "normal" conditions here.

I have watched a lot of Arp galaxies I'd hoped to take move too far west
during my 2 months of clouds and super bright moon right in the imaging
area of the sky. So when it looked like it would clear the night of
July 1 (UTC) I started looking for an Arp that was still around. Arp
188/UGC 10214 The Tadpole Galaxy was only an hour past the meridian when
it got dark enough to image so it became my target. First sub showed
something wrong. A star where the DSS plates showed none. Turned out
to be a SN found by the Lick SN survey scope June 25.3. Yes the decimal
is correct as it indicates 3 tens of a day past midnight UTC. Anyway it
was reported at mag 18.3. I get Mag 18 but there's the glow of the
galaxy to contend with so I may have not dealt with that properly.

Lots of faint fuzzies but I've not had a chance to investigate them as
yet. You're on your own this time.

The SN is 6.2" north and 7.2" west of the nucleus. I didn't put in
indicator marks as it is the only star near the nucleus so easy to spot.

14" LX200R @ f/10, L=6x10' binned 2x2, RGB=2x10 binned 3x3, STL-11000XM,
Paramount ME

While seeing was great through all the haze what with the lousy
transparency and only 120 minutes of dark skies I had no time for 1x1
imaging.

For the Lick discovery photo see:
http://www.supernovae.net/snimages/

It is about the 5th image down as I type this. Direct link without data
is:
http://astro.berkeley.edu/~bait/2008/sn2008-u10214.gif


Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".



  #6  
Old July 3rd 08, 06:23 AM posted to alt.binaries.pictures.astro
J McBride
external usenet poster
 
Posts: 274
Default ASTRO: Arp 188/UGC10214 and SN 2008dq

Hi Rick, Your image shows good detail in that small galaxy and a few
others.

Joe


"Rick Johnson" wrote in message
. com...
Finally a night with stars after 2 months. Unfortunately the dimmest
ones visible were about mag 2.8 overhead rather than 6.5 like I normally
have and clouds kept blocking the light. So while I say 60 minutes of L
data its more like 15 under "normal" conditions here.

I have watched a lot of Arp galaxies I'd hoped to take move too far west
during my 2 months of clouds and super bright moon right in the imaging
area of the sky. So when it looked like it would clear the night of
July 1 (UTC) I started looking for an Arp that was still around. Arp
188/UGC 10214 The Tadpole Galaxy was only an hour past the meridian when
it got dark enough to image so it became my target. First sub showed
something wrong. A star where the DSS plates showed none. Turned out
to be a SN found by the Lick SN survey scope June 25.3. Yes the decimal
is correct as it indicates 3 tens of a day past midnight UTC. Anyway it
was reported at mag 18.3. I get Mag 18 but there's the glow of the
galaxy to contend with so I may have not dealt with that properly.

Lots of faint fuzzies but I've not had a chance to investigate them as
yet. You're on your own this time.

The SN is 6.2" north and 7.2" west of the nucleus. I didn't put in
indicator marks as it is the only star near the nucleus so easy to spot.

14" LX200R @ f/10, L=6x10' binned 2x2, RGB=2x10 binned 3x3, STL-11000XM,
Paramount ME

While seeing was great through all the haze what with the lousy
transparency and only 120 minutes of dark skies I had no time for 1x1
imaging.

For the Lick discovery photo see:
http://www.supernovae.net/snimages/

It is about the 5th image down as I type this. Direct link without data

is:
http://astro.berkeley.edu/~bait/2008/sn2008-u10214.gif


Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".



----------------------------------------------------------------------------
----





 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
[sci.astro,sci.astro.seti] Contents (Astronomy Frequently Asked Questions) (0/9) [email protected] Astronomy Misc 0 May 3rd 07 01:08 AM
[sci.astro,sci.astro.seti] Contents (Astronomy Frequently Asked Questions) (0/9) [email protected] SETI 0 May 3rd 07 01:08 AM
[sci.astro,sci.astro.seti] Contents (Astronomy Frequently Asked Questions) (0/9) [email protected] Astronomy Misc 0 April 12th 07 01:05 AM
[sci.astro,sci.astro.seti] Contents (Astronomy Frequently Asked Questions) (0/9) [email protected] Astronomy Misc 0 May 3rd 06 12:33 PM
[sci.astro,sci.astro.seti] Contents (Astronomy Frequently Asked Questions) (0/9) [email protected] SETI 0 May 3rd 06 12:33 PM


All times are GMT +1. The time now is 05:33 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 SpaceBanter.com.
The comments are property of their posters.