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CCD Images - Session 262 (2008-02-11)

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Objects Session Notes
Bullet UGC 3611 - Spiral Galaxy & Supernova 2008C
Bullet AQ CMi - dwarf nova (SU UMa type)
Bullet NGC 3395 & 3396 - Interacting Galaxy Pair (ARP 270)
Bullet NGC 5829 - Spiral Galaxy with Supernova 2008B
Bullet NGC 3930 - Spiral Galaxy
Bullet NGC 3978 - Spiral Galaxy
Bullet Astrometric & Photometric Monitoring
 - SS Cyg, U Gem, RZ LMi (dwarf nova)
- U And, W And, SS Her, U Her  (mira variables)
- BL Lac (Blazar)
- RX And, Z And, TT Ari, KR Aur, AQ CMi, SY Cnc, AM CVn, Y CVn, DY Per, SZ Her, AD Leo, CY Lur, TZ Lyr, U Mon, DY Per, RR Tau, ER UMa, SU UMa  (variables)
- Gliese 412, Gliese 725, Groombridge 1618, Groombridge 1830, HIP 36208, Lalande 21185, Wolf 359 (Nearby Stars)


- All night session (9.9hr). Largely operated under automated control
- CCD operation of -25 degC (at 73% average cooling). 
- main objective was to acquire images of certain selected stars for ongoing photometric, and astrometric measurements in particular Z And and RX And, plus a number of gallery images.

UGC 3611 - Spiral Galaxy & Supernova 2008C

UGC 3611 with SN 2008C (Gemini) 
2008C (Type 1a) was discovered 2008/01/03.27 by Tim Puckett, R. Gagliano and Jack Newton
Magnitude at discovery was  ? +14.9
(Rochester Supernova site | Discovery Image | Reference Image)

Image below shows UGC 3611 (small galaxy) within star field in Gemini
Image
Annotated CCD Image
5 x 120s exposure (average combine), 2x2 binning, C Filter 
2008-02-12 01:32 hUT (#262230-34)
 

UGC 3611 with SN 2008C - detail
Image below (2008-02-12.06) was taken 40 days after 2008C discovery 
SN position is too close to UGC 3611 centre to be separately resolved in this image.
Combined magnitude (galaxy centre + SN2008C) is +14.3 (C)
 Image
CCD Image (250% size)
5 x 120s exposure (average combine), 2x2 binning, C Filter 
2008-02-12 01:32 hUT (#262230-34)
 

UGC 3611 with SN 2008C - earlier image
Image below (2008-01-18.11) was taken 15 days after 2008C discovery 
SN position is too close to UGC 3611 centre to be separately resolved in this image.
Combined magnitude (galaxy centre + SN2008C) is +14.1 (C)
 Image
CCD Image (250% size)
5 x 120s exposure (average combine), 2x2 binning, C Filter 
2008-01-18 00:12 hUT (#254083-87)

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AQ CMi - dwarf nova (SU UMa type)

Star field surrounding AQ CMi (Canis Minor) 
AQ CMi is too dim to be visible in this image
(limiting magnitude mag +16)

Image
CCD Image
3 x 30s exposure (average combine), 2x2 binning, C Filter 
2008-02-12 00:01h UT (#262155-61)
[ images of AQ CMi at outburst : www.astronomer.org ]

 

AQ CMi - location detail 
The catalogue location of AQ CMi is marked by white crosshairs.
AQ CMi itself (mag < +16) is not in outburst and is
 too dim to be visible in this relatively short image
Image
CCD Image (200%, cropped)
Image details as above.

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NGC 3395 & 3396 - Interacting Galaxy Pair (ARP 270)

NGC 3395 & 3396 / ARP 270 (Leo Minor)
(alias Herschel H116-1)
Image Image
Annotated CCD Image
7 x 2 min exposure (average combine), 2x2 binning, C Filter
2008-02-12 02:28 hUT (#262277-83)		 Negative CCD Image (200% size)
Image details as left

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NGC 5829 - Spiral Galaxy with Supernova 2008 B

NGC 5829  (Bootes)
Poor S/N image: Supernova 2008B, discovered in NGC 5829 
on 2008/01/02.84 by Koichi Itagaki, is not visible
Image
CCD Image
4 x 120s exposure (average combine), 
2x2 binning, C Filter,
2008-02-12 02:45 hUT (#262288-91)

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NGC 3930 - Spiral Galaxy

NGC 3930 (Ursa Major)
Image
CCD Image 
5 x 180s exposure (average combine), 2x2 binning, C Filter,
2008-02-12 04:48h UT (#262653-57) 

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NGC 3978 - Spiral Galaxy

NGC 3978 (Ursa Major) 

Image
CCD Image
5 x 180s exposure (average combine), 2x2 binning, C Filter 
2008-02-12 05:06h UT (#262661-65)

 

NGC 3978 - detail 
(smaller galaxy to right is NGC 3975)
Image
Negative CCD Image (250%, cropped)
Image details as above.

 

NGC 3978 - earlier image  
 NGC 3978 (catalog mag +12.4), NGC 3975 (catalog mag +15.3), 
PGC 37534 (catalog mag +17.0)

A +19 mag Supernova 2008I lies in NGC 3978 
(discovered 2008/01/02.54 by Lick Observatory Supernova Search)
but it is to faint or too close to galaxy centre to see in image below
(Rochester Supernova site | SN 2008I discovery Image | Reference Image)

Image
Annotated CCD Image
5 x 180s exposure (average combine), 2x2 binning, C Filter 
2008-01-17 23:56 hUT (#254076-80)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 262  (2008-02-11)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site