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CCD Images - Session 355 (2009-03-05)

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Objects Session Notes
Bullet C/2007 N3 (Lulin) - Comet
Bullet NGC 2939 - Spiral Galaxy with Supernovae 2009ao
Bullet C/2009 T2 (Cardinal) - Comet
Bullet Astrometric & Photometric Monitoring
- U Gem  (dwarf nova)
- BL Lac (blazar)
- RX And, Z And, TT Ari, HR Aur, CC Cnc, R CrB,
CN Ori, CZ Ori, FO Ori, FU Ori, DY Per, GK Per, ER UMa (variables)
 
- Evening session (3.2 hrs), largely operated under automated control
- Ambient Temperature  initially 2 deg C, gradually falling to -1 deg C by end of session
- CCD operation -25 degC (at 64% average cooling).  
- main objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 
- opportunity taken to acquire images of comet Lulin
- Notes from 2009-03-05  (Flats History)

C/2007 N3 (Lulin) - Comet

C/2007 N3 (Lulin) passing through starfield in Leo

Image

CCD Image (Linear Scale)
3 x 30s sec exposure (average combine, aligned on comet), 
2x2 binning, C Filter
2009-03-05 20:27 h UT (#355028-30)
8" LX200 Classic (at f/6.6) + ST-7E 

  

C/2007 N3 (Lulin) - detail

Image

False Colour CCD Image (Log Scale)
Inverse Specturn
30s sec exposure,  2x2 binning, C Filter
2009-03-05 20:27 h UT (#355028)
8" LX200 Classic (at f/6.6) + ST-7E 

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NGC 2939 - Spiral Galaxy with Supernovae 2009ao

NGC 2939 (Leo)
Galaxy in center of image

Image
CCD Image
4 x 120s exposure (average combine), 2x2 binning, C Filter 
2009-03-05 20:35 hUT (#355034-38)
8" LX200 Classic (at f/6.6) + ST-7E 
  

Detail of NGC 2939  & SN 2009ao
SN 2009ao (Type??) was discovered 2009/03/04.12 by CHASE
Magnitude at discovery +15.8 (C)
(Rochester Supernova site | Discovery Image | Discovery Page | Reference Image)

Image below (2009-03-05.86) was taken 1.7 days after discovery.
SN 2008ao - Estimated Magnitude +17

Image 
Annotated CCD Image (200% scale, cropped)
Image details as above
  
Image 
Negative CCD Image (200% scale, cropped)
Image details as above

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C/2009 T2 (Cardinal) - Comet

C/2009 T2 (Cardinal) passing through starfield in Camelopardalis

Image

CCD Image (Linear Scale)
3 x 120s sec exposure (average combine)
2x2 binning, C Filter
2009-03-05 22:56 h UT (#355140-42)
8" LX200 Classic (at f/6.6) + ST-7E 

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 355  (2009-03-05)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site