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CCD Images - Session 474 (2011-05-01)

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 (S475) 		 
Objects Session Notes
Bullet NGC 4495 - Spiral Galaxy with Supernovae SN2011by
Bullet NGC 3972 - Spiral Galaxy with Supernovae SN2011by
Bullet NGC 3977 - Spiral Galaxy
Bullet Hickson 53 - Galaxy Group (NGC 3697)
Bullet Hickson 51 - Galaxy Group (NGC 3651 et al)
Bullet Variable Stars
Bullet Photometric Monitoring - Variables
- KR Aur, SY Cnc, U Gem, RZ LMi, GK Per, ER UMa, SU UMa
Bullet Astrometric Monitoring - Nearby Stars
- Gliese 412, Groombridge 1830, Lalande 21185
- Evening  session (1.7 hrs)
- Session operated under semi-automated control, with remote monitoring from indoors computer. 
- Ambient Temperature: +1.5 deg C (minimum) 
- CCD operation -25 degC (at 66% average cooling).  
- main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis.

NGC 4495 - Spiral Galaxy  with Supernovae SN2011by

NGC 3972 with SN 2011ca  (Coma Berenices)

SN 2011ca (Type Ic) was discovered 2011/04/26.940 by Fabrizio Ciabattari and E. Mazzoni
Magnitude at discovery +17.2
(Rochester Supernova site | Discovery Image )

Image below (2011-05-01.94) was taken 5.0 days after SN discovery.
Est Mag +16.4
SN 2011ca is marked by white cross hair
Image
Annotated CCD Image (cropped)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-05-01 22:28 h UT  (#474034-38)
12" LX200R  (at f/9.7) + ST-10XME

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NGC 3972 - Spiral Galaxy  with Supernovae SN2011by

NGC 3972 with SN 2011by  (Leo)
Wide View
Image
Annotated CCD Image (100% size, cropped)
Image details as above

 

NGC 3972 with SN 2011by 
Close Up View

SN 2011by (Type Ia) was discovered 2011/04/26.823 by Zhangwei Jin and Xing Gao
Magnitude at discovery +14.2
(Rochester Supernova site | Discovery Image )

Image below (2011-05-01.94) was taken 5.1 days after SN discovery.
Est Mag +13.0
SN 2011by is marked by white cross hair
Image
CCD Image (50% size)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-05-01 22:38 h UT  (#474041-45)
12" LX200R  (at f/9.7) + ST-10XME

 Sequence of Images of NGC 3972 with SN 2011by
taken between 2 and 5 days after discovery
 

 Image

 NGC 3972 with SN 2011by 
2011-04-28.91
 2.1 days after SN discovery.
Est Mag +13.8

CCD Image (cropped)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-04-28 21:56 h UT  (#471048-52)
12" LX200R  (at f/9.7) + ST-10XME

Image 

 NGC 3972 with SN 2011by 
2011-04-29.93
 3.1 days after SN discovery. 
Est Mag +13.3

CCD Image (cropped)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-04-29 22:21 h UT  (#472029-33)
12" LX200R  (at f/9.7) + ST-10XME

 Image

 NGC 3972 with SN 2011by 
2011-04-30.93
 4.0 days after SN discovery. 
Est Mag +13.3

CCD Image (cropped)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-04-30 22:14 h UT  (#473037-41)
12" LX200R  (at f/9.7) + ST-10XME

 
Image NGC 3972 with SN 2011by 
2011-05-01.94
  5.1 days after SN discovery. 
Est Mag +13.0

CCD Image (50% size)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-05-01 22:38 h UT  (#474041-45)
12" LX200R  (at f/9.7) + ST-10XME

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NGC 3977 - Spiral Galaxy  

NGC 3972 & NGC 3977  (Leo) 
NGC 3977 is galaxy in upper left  of image
NGC 3972 is at center of image
Image
CCD Image (50% size)
5 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2011-05-01 22:38 h UT  (#474041-45)
12" LX200R  (at f/9.7) + ST-10XME

  

NGC 3977 - detail
(NGC 3977 top centre,  NGC 3972 bottom right)
Image
Annotated CCD Image (100% size, cropped)
Image details as above

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Hickson 53 - Galaxy Group (NGC 3697)

NGC 3697 (Leo)
Image
CCD Image (50% size)
2 x 120 sec exposure (average combine), 3x3 binning, C Filter 
2011-05-01 23:16 h UT  (#474089-90)
12" LX200R  (at f/9.7) + ST-10XME
[ larger image ]

 

NGC 3697 - detail
Image
Annotated CCD Image (75% size, cropped)
Image details as above
[ larger image ]

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Hickson 51 - Galaxy Group (NGC 3651  et al)

NGC 3651 (Leo)
Image
Annotated CCD Image (cropped)
120 sec exposure (single frame), 3x3 binning, C Filter 
2011-05-01 23:23 h UT  (#474094)
12" LX200R  (at f/9.7) + ST-10XME

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Variable Stars

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This Web Page: CCD Images - Session 474 (2011-05-01)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site