David's Astronomy Pages Images - Session 551 (2013-10-27)

Images (S550)

Images Sessions

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Images (S552)

Objects

Session Notes

154P/Brewington - Comet     Nova Del 2013 - Nova (V339 Del)     IC 4997 - Galaxy     NGC 6207 - Spiral Galaxy   Variable Stars (photometric monitoring) - None   Nearby Stars (astrometric monitoring) - None

- Evening session (0.5 hrs duration).  Windy condition, poor seeing. - Session operated under semi-automated control, with remote monitoring from indoors computer.   - Ambient Temperature:  6°C minimum - CCD operation -25°C (at 69% average cooling).   - sole objectives of the session were to image C/2012 X (LINEAR) which is reported to have undergone an explosive eruption, similar to Comet Holmes in 2007. -

154P/Brewington - Comet

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Nova Del 2013 - Nova (V339 Del)

Nova Del 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 Alias:  V339 Del

Nova Del 2013  - 2013-10-27 (T+75d) 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

Images of Nova Del 2013 on Novae Page >>

Earlier Image of Nova Del  (2013)  - 2013-09-08 (T+25d) 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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IC 4997 - Galaxy

NGC 6207 / Herschell II-701 (Hercules)

CCD Image (50% scale) 4 x 120 sec exposure (average combine), 3x3 binning, C Filter  2013-10-27 21:40hUT (#551003-06) 12" LX200R  (at f/9.7) + ST-10XME

NGC 6207 - detail

CCD Image (cropped) Image details as above

NGC 6207 - detail

Negative CCD Image (cropped) Image details as above

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NGC 6207 - Spiral Galaxy  (Herschel II-701)

NGC 6207 / Herschell II-701 (Hercules)

CCD Image (50% scale) 4 x 120 sec exposure (average combine), 3x3 binning, C Filter  2013-10-27 21:40hUT (#551003-06) 12" LX200R  (at f/9.7) + ST-10XME

NGC 6207 - detail

CCD Image (cropped) Image details as above

NGC 6207 - detail

Negative CCD Image (cropped) Image details as above

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