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CCD Images - Session 211 (2007-09-10)

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Images (S212)
 
Objects Session Notes
Bullet NGC 7461 - Spiral Galaxy with Supernova 2007hj
Bullet M1 - Supernovae Remnant
Bullet NGC 1555 (Hind's Variable Nebula)
Bullet Polar Alignment
Bullet Astrometric & Photometric Monitoring
- SS Cyg (Dwarf Nova)
- BL Lac (Blazar)
- U And, W And, U Her (Mira variables)
- Z And, SZ Her (Variable)
- Session duration 3.6 hr, interrupted by cloud during first hour, becoming very clear later.
- CCD operation of -20 degC (at 77% average cooling). .
- main objectives were to acquire images of selected variable stars for ongoing photometry, to check out new software routines and refine polar alignment. 
- opportunity was taken to acquire follow up images of Supernova 2007hj in NGC 7461 and images of M1 and Hind's Variable Nebula (T Taurii)
- More Notes (Polar Alignment)
-

NGC 7461 - Spiral Galaxy with Supernova 2007hj

NGC 7461 (Pegasus) with SN 2007hj
2007hj is a Type 1a Supernova discovered 2007/09/01.32 
by Lick Observatory Supernova Search (LOSS) at mag +15.9
(Rochester Supernova site | Discovery Image | Reference Image)

Image below (2007-09-11.02) was taken 9.7 days after discovery. 

Image
CCD Image
3 x 120s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2007-09-11 00:26 hUT (#211093-94)
 

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M1 - Supernovae Remnant 

M1 (Taurus) 

Image
CCD Image
6 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2007-09-11 01:05 hUT (#211121-26)
 

M1 - detail

Image 
CCD Image (200% size)
Image details as above
 
Image 
False Colour CCD Image (200% size)
Square Root brightness scaling, False Colour (Inverse Spectrum)
Image details as above

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NGC 1555 - Nebula ("Hind's Variable Nebula")

NGC 1555 - "Hind's Variable Nebula" (Taurus) 
The Nebula is also known as 
"Struve's Lost Nebula" and "Burnham's Nebula"
The adjacent bright star is variable star T Tau

Image
Annotated CCD Image
6 x 180s exposure (average combine), 
2x2 binning, C Filter, Linear brightness scaling
2007-09-11 01:05 hUT (#211121-26)
 

Hind's Variable Nebula - detail

Image 
CCD Image (200% size)
Cropped
Image details as above

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Polar Alignment

  Images acquired during Refined Polar Alignment  (2007-09-10)

Image  

  

Image  

Annotated CCD images 
20s exposures, 2x2 binning, C filter 
2007-09-10 22:51h to 23:15h (# 211028-34)
[More Pictures from Polar Alignment Process]

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 211 (2007-09-10)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site