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CCD Images - Session 55 (2003-12-07)

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Bullet Notes from CCD Session
 
Bullet NGC 708 - Galaxy Cluster (The Fath) 
Bullet UGC 11797 & UGC 11798 Spiral Galaxies
Bullet M108 - Spiral Galaxy
Bullet M109 - Spiral Galaxy
Bullet NGC 3953 - Spiral Galaxy
Bullet NGC 206 - Emission Knot in M31
Bullet NGC 6792 - Spiral Galaxy
Bullet NGC 7197 - Spiral Galaxy
Bullet M31 - Spiral Galaxy (Andromeda Galaxy) 
Bullet NGC 744 - Open Cluster
Bullet More Galaxies (UGC 11430, MCG7-40-5, UGC 11961, UGC 4047, NGC 2449)
Bullet Satellite or Plane ?
Bullet Sky Brightness Survey

Notes (S00055)

Imaging session was at Full Moon , with ST7 CCD camera on a temporarily mounted 8", f/10 SCT telescope.  Despite the moon light causing typical sky background of around 3 to 6 ADU/sec/sq.arc sec (compared to non-Moon sky background values of around 0.6 to 1) reasonable detail was observable in galaxies down to mag +14 to +15.

Initial polar alignment error was 1.1 deg in azimuth and 0.15 deg in altitude, as determined by TPoint. After jogging the scope using new script routine and then re-centering by adjusting the mount's pointing the polar alignment error was reduced to 0.3 deg in azimuth and 0.15 deg in altitude.  This allowed images of 30 sec exposures to be taken without any trailing.

[ Goto Notes from Session S00054 (2003-11-21)

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NGC 708 -  Galaxy Group (The Fath)

NGC 708 (Andromeda)
NGC 708 (catalog mag +13.7), NGC 703 (catalog mag +14.2), NGC 705 (catalog mag +14.6), 
NGC 704 (catalog mag +14.1), CGCG 522-33 (catalog mag +15.5) 
Image
CCD Image, 41 x 20 sec exposure (average)
2003-12-07  23:34 to 23:56h UT (#55078-118)
8" LX200 + ST-7E
 
Negative 
Image
CCD Image details as above  

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 UGC 11797 & UGC 11798 -  Spiral Galaxies

UGC 11797 & UGC 11798 (Cygnus)
UGC 11797 catalog mag +15.2, UGC 11798 catalog mag +14.8,, 
UGC 11799 catalog mag +13.9 , UGC 11801 catalog mag +15.2

Note : The bright star is SAO 51224 (mag +8.5)
Image
CCD Image Composite, 
Top 5 x 30 sec exposure (summed)
Bottom 7 x 30 sec exposure (summed)
2003-12-07  23:29 to 23:36h UT (#55195-206)
  
Negative
Image
CCD Image, 7 x 30 sec exposure (summed)
2003-12-07  23:29 to 23:33h UT (#55195-201)

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M108 -  Spiral Galaxy

M108 (Ursa Major)
Image
CCD Image, 5 x 30 sec exposure (summed)
2003-12-08  00:34 to 00:40h UT (#55260-69)
11.6 x 7.8 arc sec  

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M109 - Spiral Galaxy

M109 (Ursa Major)
Image
CCD Image, 5 x 30 sec exposure (summed)
2003-12-08  00:43 to 00:46h UT (#55271-75)
11.6 x 7.8 arc sec  

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NGC 3953 - Spiral Galaxy

NGC 3953 (Ursa Major)
(catalog mag +10.8)
Image
CCD Image, 6 x 30 sec exposure (summed)
2003-12-08  00:49 to 00:53h UT (#55279-84)
 
Negative
Image
CCD Image as above

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NGC 6792 - Spiral Galaxy

NGC 6792 (Lyra)
Image
CCD Image, 7 x 30 sec exposure (summed) 
2003-12-07  22:43 to 22:47 h UT (#55180-86)
   
NGC 6792 imaged at different exposures
Image
CCD Images, various exposures 
2003-12-07  22:43 to 23:21 h UT (#55180-94)

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NGC 7197 - Spiral Galaxy

NGC 7197 (Lacerta)
Image
CCD Image, 10 x 20 sec exposure (median)
2003-12-07  23:39 to 23:45h UT (#55208-17)

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M31 (Andromeda Galaxy)

M31 (Andromeda)
Image
CCD Image, 3x30 sec exposure (median)
2003-12-07  23:50 to 23:52 h UT (#55222-24)
11.6 x 7.8 arc sec  
  
NGC 206 in M31 (Andromeda)
Image
CCD Image, 6x30 sec exposure (median)
2003-12-07  23:53 to 23:56 h UT (#55225-30)
11.6 x 7.8 arc sec  

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NGC 744 Open Cluster

NGC 744 (Perseus)
Image
CCD Image,  10s exposure
2003-12-07  21:33 h UT (#55077) 
11.6 x 7.8 arc sec

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More Galaxies (UGC 11430, MCG7-40-5, UGC 11961, UGC 4047, NGC 2449)

UGC 11430 - Spiral Galaxy (Lyra)
 (catalog mag +14.1)
Image
CCD Image, 6 x 30 sec exposure (summed)
2003-12-07  22:37 to 22:40h UT (#55174-79)
  
MCG7-40-5 - Spiral Galaxy (Cygnus)
(MCG7-40-5 catalog mag +14.9,  MCG7-40-4 catalog mag +15.3) 
Image
CCD Image, 4 x 30 sec exposure (summed)
2003-12-07  22:21 to 22:34h UT (#55168-72)
  
MCG7-40-4 and MCG7-40-5- Spiral Galaxies (Pegasus)
Image
CCD Image, 9 x 30 sec (summed)
2003-12-07  22:14 to 22:34h UT (#55163-72)
  
UGC 11961 - Spiral Galaxy (Lacerta)
(Catalog Mag +15.0)
Image
CCD Image,  3 x 20s exposure (summed)
2003-12-07 23:47 to 23:49h UT (#55219-21) 
11.6 x 7.8 arc sec 
  
UGC 4047 - Spiral Galaxy (Gemini)
UGC 4047 (catalog mag +14.0), MCG5-19-16 (catalog mag +15.8)
Image
CCD Image, 5 x 30 sec exposure (summed)
2003-12-08  00:19 to 00:22h UT (#55248-52)
  
NGC 2449 - Spiral Galaxy (Gemini)
NGC 2449 (catalog mag +14.3), IC 476 (catalog mag +15.7)
Image
CCD Image, 3 x 30 sec exposure (summed)
2003-12-08  00:24 to 00:25h UT (#55253-55)

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Satellite or plane ?

Satellite or plane ? (Pegasus). Altitude 54.3 deg
Image
CCD Image, 20s exposure
2003-12-07  20:54h UT (#55055)

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Sky Brightness Survey

Light Survey showed that sky was about 7 times brighter (with Full Moon) compared to the dark skies at an earlier observing session on 2003-10-17 (with no moon)

Image


Comparison between 2003-12-07 (full moon) with a session 7 weeks before (no moon)

Image
Image

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This Web Page: CCD Images - Session 55 (2003-12-07)
Last Updated : 2020-11-18
Site Owner : David Richards
Home Page : David's Astronomy Web Site