David's Astronomy Pages Images - Session 554 (2013-11-06)

Images (S553)

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Images (S555)

Objects	Session Notes
Nova Delphini 2013 - Nova     NGC 6934 - Globular Cluster (Caldwell 47)   Variable Stars (photometric monitoring) - SS Cyg, AM Her, CY Lyr, FG Sge, WZ Sge - BL Lac, & U Sge attempts failed (due to cloud)   Nearby Stars (astrometric monitoring) - None	- Evening session (1.2 hrs duration).  Poor conditions - Session operated under semi-automated control, with remote monitoring from indoors computer.   - Ambient Temperature:  0°C minimum - CCD operation -25°C (at 71% average cooling).   - -

Nova Delphini 2013 - Nova

Nova Delphini 2013 (Delphinus) Nova Delphini was discovered on 14th August 2013 by Japanese observer Koichi Itagaki at magnitude +6.8.  Koichi had imaged the same field the day before and nothing was visible at the same location. The progenitor star was identified from archive images as being magnitude +16.9 The image below was taken 85 days after discovery when nova had faded to around +10.6 The Nova is the central object in the image, marked by white cross-hairs. (poor  sky transparency)

CCD Image (cropped) 5 sec exposure (single frame), 3x3 binning, C Filter 2013-11-06 21:37hUT (#554052) 12" LX200R  (at f/9.7) + ST-10XME

Earlier Image of Nova Delphini (2013)  - 2013-11-01 taken 80 days after discovery when nova had faded to around +10.6

CCD Image (cropped) 4 x 5 sec exposure (average combine), 3x3 binning, C Filter 2013-11-01 19:03hUT (#552148-52) 12" LX200R  (at f/9.7) + ST-10XME

Earlier Image of Nova Delphini (2013)  - 2013-10-27 taken 75 days after discovery when nova had faded to around +10.5

CCD Image (cropped) 5 sec exposure (single frame), 3x3 binning, C Filter 2013-10-27 22:18hUT (#551028) 12" LX200R  (at f/9.7) + ST-10XME

Earlier Image of Nova Delphini (2013)  - 2013-10-11 taken 59 days after discovery when nova had faded to around +9.5

CCD Image (cropped) 5 x 5 sec exposure (average combine), 3x3 binning, C Filter 2013-10-11 19:08hUT (#547165-69) 12" LX200R  (at f/9.7) + ST-10XME

Earlier Image of Nova Delphini (2013)  - 2013-09-08 taken 25 days after discovery when nova was at magnitude +7.5

CCD Image (cropped) 5 x 5 sec exposure (average combine), 3x3 binning, C Filter 2013-09-08 22:19hUT (#546057-61) 12" LX200R  (at f/9.7) + ST-10XME

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NGC 6934 - Globular Cluster (Caldwell 47)

NGC 6934 / Caldwell 47  (Delphinus)

CCD Image (50% size) 3 x 20s exposure (average combine), 3x3 binning, C Filter  2013-11-06 21:34 hUT (#554044-46) 12" LX200R  (at f/9.7) + ST-10XME

NGC 6934 - Earlier Image (2012-10-21)

CCD Image (50% size) 6 x 20s exposure (average combine), 3x3 binning, C Filter  2012-10-21 20:26 hUT (#517065-74) 12" LX200R  (at f/9.7) + ST-10XME

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