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 CCD Images - Session 551 (2013-10-27)

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Objects Session Notes
Bullet NGC 6207 - Spiral Galaxy
Bullet 154P/Brewington - Comet
Bullet Nova Del 2013 - Nova (V339 Del)
Bullet C/2012 X1 (LINEAR) - Comet
 
Bullet Variable Stars
Bullet Photometric Monitoring - Variables
- None
Bullet Astrometric Monitoring - Nearby Stars
- None
- Evening session (0.5 hrs duration).  Windy condition, poor seeing.
- Session operated under semi-automated control, with remote monitoring from indoors computer.  
- Ambient Temperature:  6 degC minimum
- CCD operation -25 degC (at 69% average cooling).  
- sole objectives of the session were to image C/2012 X (LINEAR) which is reported to have undergone an explosive eruption, similar to Comet Holmes in 2007.
-

NGC 6207 - Spiral Galaxy  (Herschel II-701)

NGC 6207 / Herschell II-701 (Hercules) 
Image
CCD Image (50% scale)
4 x 120 sec exposure (average combine), 3x3 binning, C Filter 
2013-10-27 21:40hUT (#551003-06)
12" LX200R  (at f/9.7) + ST-10XME

 

NGC 6207 - detail 
Image
CCD Image (cropped)
Image details as above

 

NGC 6207 - detail 
Image
Negative CCD Image (cropped)
Image details as above

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154P/Brewington - Comet

154P/Brewington
(Passing through starfield in Aquarius. Sun Distance 1.68 AU)
Estimated magnitude of comet is +14.5 to +15

Image
CCD Image (cropped)
3 x 60 sec exposure (average combine), 3x3 binning, C filter, 
2013-10-27 22:02hUT (#551011-16)
12" LX200R  (at f/9.7) + ST-10XME

 

154P/Brewington - Earlier Image 2013-10-12
(Passing through starfield in Aquarius. Sun Distance 1.74 AU)
Estimated magnitude of comet is +14

Image
CCD Image (cropped)
5 x 60 sec exposure (average combine), 3x3 binning, C filter, 
2013-10-12 20:39hUT (#548123-27)
12" LX200R  (at f/9.7) + ST-10XME

154P/Brewington - Earlier Image 2013-10-11
(Passing through starfield in Aquarius. Sun Distance 1.74 AU)

Image
CCD Image (cropped)
4 x 60 sec exposure (average combine), 3x3 binning, C filter, 
2013-10-11 20:23hUT (#547250-53)
12" LX200R  (at f/9.7) + ST-10XME

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 Nova Del 2013 - Nova (V339 Del)

Nova Del 2013 (Delphinus)
Nova Delphini was discovered on 14th August 2013 by Japanese observer Koichi Itagaki at magnitude +6.8. 
Koichi had imaged the same field the day before and nothing was visible at the same location.
The progenitor star was identified from archive images as being magnitude +16.9
Alias:  V339 Del
 
Nova Del 2013  - 2013-10-27 (T+75d)
taken 75 days after discovery when nova had faded to around +10.5 
Image
CCD Image (cropped)
5 sec exposure (single frame), 3x3 binning, C Filter
2013-10-27 22:18hUT (#551028)
12" LX200R  (at f/9.7) + ST-10XME
Images of Nova Del 2013 on Novae Page >>
 
Earlier Image of Nova Del  (2013)  - 2013-09-08 (T+25d)
 taken 25 days after discovery when nova was at magnitude +7.5
Image
CCD Image (cropped)
5 x 5 sec exposure (average combine), 3x3 binning, C Filter
2013-09-08 22:19hUT (#546057-61)
12" LX200R  (at f/9.7) + ST-10XME

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NGC 6207 - Spiral Galaxy  (Herschel II-701)

NGC 6207 / Herschell II-701 (Hercules) 
Image
CCD Image (50% scale)
4 x 120 sec exposure (average combine), 3x3 binning, C Filter 
2013-10-27 21:40hUT (#551003-06)
12" LX200R  (at f/9.7) + ST-10XME

 

NGC 6207 - detail 
CCD Image (cropped)
Image details as above

 

NGC 6207 - detail 
Negative CCD Image (cropped)
Image details as above

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Variable Stars

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This Web Page: CCD Images - Session 551 (2013-10-27)
Last Updated : 2021-08-21
Site Owner : David Richards
Home Page : David's Astronomy Web Site