David's Astronomy Pages Images - Session 479 (2011-10-03)

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Session Notes

C/2009 P1 (Garradd) - Comet M101 - Spiral Galaxy with Supernova 2011fe     Photometric Monitoring - Variables - R CrB, U Her, CY Lyr, FG Sge, U Sge - CI Cyg, S Cyg, SS Cyg, AM Her, BL  Lac, V Sge attempts (failed due to wind)     Astrometric Monitoring - Nearby Stars - None   - 61 Cyg attempt (failed due to wind)

- Evening session (2.2 hrs), windy, cut short due to wind - Session operated under semi-automated control, with remote monitoring from indoors computer.  - Ambient Temperature: 6.5°C (minimum)  - CCD operation -20°C (at 65% average cooling).   - main objective of the session to obtain follow-up images of bright supernovae in nearby galaxy M101 secondary objective was to image project stars for ongoing photometric analysis -

C/2009 P1 (Garradd) - Comet

C/2009 P1 (Garradd)   (moving through starfield in Hercules) 2 frames show 66 arc sec movement of the comet over a period of 77 minutes. This corresponds to a motion of 52 arc sec/hour

CCD Image Animation (60% size, cropped) 3x3 binning, C Filter Frame 1: 5x30 sec (average combine), 2011-10-03 20:39h UT (#479017-23) Frame 2: 2x30 sec (average combine), 2011-10-03 21:56h UT (#479121-22) 12" LX200R  (at f/9.7) + ST-10XME

C/2009 P1 (Garradd) - detail

False Colour CCD Image (50% size) Square root scaling, Inverse Spectrum colour bar 5x 30 sec (average combine), 3x3 binning, C Filter 2011-10-03 20:39h UT (#479017-23) 12" LX200R  (at f/9.7) + ST-10XME

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M101 - Spiral Galaxy with Supernova 2011fe

M101 with supernova 2011fe  (Ursa Major) SN 2011fe (= PTF11kly) (Type Ia) was discovered  2011/08/24.00 by Palomar Transient Factory Discovery Magnitude 17.2 ( Rochester Supernova site | Discovery Image | TNS 2011fe )		SN 2011fe is reported as being the  nearest Type 1a supernova  seen in decades
M101 with supernova 2011fe  (brightening)
		New Image (+41d) 2011-10-03.85 41 days after SN discovery SN Est. Mag  +10.5 Annotated CCD Image  (58% size, cropped) 11 x 60 sec exposure (average combine),  3x3 binning, C Filter  2011-10-03 20:28 h UT  (#479003-14) 12" LX200R  (at f/9.7) + ST-10XME
		Earlier Image (+37d) 2011-09-29.88 37 days after SN discovery SN Est. Mag  ~ +11.1 Annotated CCD Image  (58% size, cropped) 4 x 60 sec exposure (average combine),  3x3 binning, C Filter  2011-09-29 21:04 h UT  (#478008-11) 12" LX200R  (at f/9.7) + ST-10XME Note : Poor sky transparency  + frost on edges of CCD
		Earlier Image (+1.9d) 2011-08-25.91 ~ 1.9 days after SN discovery SN Est. Mag  +13.4 Annotated CCD Image  (58% size, cropped) 9 x 60 sec exposure (average combine),  3x3 binning, C Filter  2011-08-25 21:41 h UT  (#477019-28) 12" LX200R  (at f/9.7) + ST-10XME
		Earlier Image (pre-discovery) 2009 CCD Image  (cropped)  9 x 60 sec (average combine),   3x3 binning, C Filter 2009-08-24 22:00 h UT  (#386001-10) 12" LX200R  (at f/5.7) + ST-10XME
Images of SN 2011fe (in M101) on Supernova 2011 Page >>

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