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CCD Images - Session 52 (2003-08-22 / 2003-08-23)

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Notes from CCD Session
 
M15 - Globular Cluster
M27 - Planetary Nebula
Mars
NGC 7454 - Elliptical Galaxy
M31 (Andromeda Galaxy) - Nucleus/Dust Lane 
NGC 206 Emission Knot in M31
Sky Brightness Survey

Notes (S00052)

This was my final opportunity to acquire images of Mars during 2003 opposition prior to dismantling my Dorset observatory.  Some good images were obtained.

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M15 Globular Cluster

M15 (Pegasus)
CCD Image,  10s exposure
2003-08-22 22:13h UT (#52005) 
11.4 x 7.6 arc sec

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M27 (Dumbbell Nebula) - Planetary Nebula

M27 (Vulpecula)
CCD Image,  9 x 20s exposures (summed)
2003-08-22 22:30 to 22:34h UT (#52015-23) 
11.4 x 7.6 arc sec

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Mars

Mars - close to Opposition
(phase 99.6%, 25.0 arc min diameter)
2003-08-22  
23:52:37 h UT 
0.30 sec exposure
(#52041)
2003-08-23 
00:32:04 h UT 
0.25 sec exposure
(#52117)
8" SCT operating at F/29 through eyepiece projection
Unfiltered. Images unsharp masked.
Image Scale 0.31 arc sec/pixel 
(equivalent to surface scale of 85 km/pixel)

 

Mars features
2003-08-22  23:52:37 h UT (#52041)
Unsharp masked
 
 
Comparsion of 0.25 sec exposure 
(image #52117, 2003-08-23 00:32 h UT) 
with B/W view from Mars Previewer II 

 

Mars through colour filters
 From left to right :
Green Filter,  5.00 sec exposure (00:58 h UT, #52147)
Yellow Filter , 0.25 sec exposure (01:32 h UT, #52163)
Blue Filter , 0.50 sec exposure (01:40 h UT, #52169)
Red Filter , 0.50 sec exposure (02:13 h UT, #52204)
8" SCT operating at F/29 through eyepiece projection 
Taken on 2003-08-23. Images all unsharp masked
(Filters had to be manually inserted into the optical path, involving
 reconnecting the CCD camera to telescope and recentering/refocussing 
on Mars each time - hence the large time gap between each image.
 Seeing quality had also deteriorated significantly by the time the 
red filter image was taken)
  
Mars rotation over nearly 3 hours
 From left to right :
2003-08-22  23:45h UT (0.20 sec exposure, unfiltered, #52030)
2003-08-23  00:58h UT (0.25 sec exposure, unfiltered, #52127)
2003-08-23  01:47h UT (0.50 sec exposure, blue filter, #52177)
2003-08-23  02:35h UT (0.25 sec exposure, unfiltered, #52219)
Images all unsharp masked

 

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NGC 7454 - Elliptical Galaxy

NGC 7454 (Pegasus)
(Catalog Mag +13.1)
CCD Image,  5 x 20s exposures (median)
2003-08-23 03:03h UT (#52231- 35) 
9.8 x 6.3 arc sec 

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M31 (Andromeda Galaxy) - Nucleus/Dust Lane

M31 (Andromeda)
CCD Image,  6 x 1 20s exposures (summed)
Mid Range Brighten
2003-08-23  03:23 to 03:23h UT (#52253- 58) 
11.4 x 7.6 arc sec 

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NGC 206 Emission Knot/Cluster in M31

NGC 206 Emission Knot in M31 arms (Andromeda)
CCD Image, 3 x 120 sec exposure 
(2x2 binning, median combine, x0.5 resize)
2003-08-23  03:40 to 03:46h UT (#52259-61)
11.4 x 7.6 arc sec  

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Sky Brightness Survey

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This Web Page: CCD Images - Session 52 (2003-08-22/23)
Last Updated : 2006-07-31
Site Owner : David Richards
Home Page : David's Astronomy Web Site