David's Astronomy Pages
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 Images (S244) |
 Images Sessions |
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 Images (S246) |
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Objects Session Notes
King 2 - Open Cluster / Asterism NGC 7094 - Planetary Nebula (attempt) 2007 XH16 - Near Earth Asteroid (NEA) / Minor Planet NGC 7510 - Open Cluster (Herschel VII-44) NGC 7261 - Open Cluster 8P/Tuttle - Comet Astrometric & Photometric Monitoring
- SS Cyg, U Gem (dwarf nova)
- BL Lac (Blazar)
- W And (mira variables)
- CY Lyr, TZ Lyr, TT Ari, RZ LMi, RX And (variables)
- RU Peg, DY Per (variables)
- Gliese 725 (Nearby Stars)
- Evening session (7.0hr). Poor transparency - Problem performing automated short mapping job using new TPoint Model. Manually controlled mapping was required instead. - CCD operation of -25 degC (at 68% average cooling). - -main objectives were to acquire images of certain selected stars of ongoing photometric and astrometric analysis, and follow up images of comet 8P/Tuttle -opportunity was also taken to acquire gallery images of certain deep sky objects, including open clusters in Cepheus
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King 2 (Cepheus) , with Comet 8P/Tuttle |
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CCD Image Mosaic (60% size) |
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King 2 - detail |
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Part of CCD Image Mosaic |
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This is apparently one of the most challenging planetary nebulae to observe in the NGC catalogue. Attempts to image NGC 7094 were made in 2004 and again in this session in 2007 with 8" LX200 and CCD Camera (see below). Although the mag +13.6 central star could be easily seen, the planetary nebula could not be detected in images of 6 minutes total exposure time.
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NGC 7094 (Pegasus) |
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CCD Image |
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2007 XH16 is a 565m diameter asteroid which is
due to pass by the earth on 2007-12-24 at a distance of 8.1 lunar distance
(LD).
A sequence of images of 2007 XH16 were recorded streaking through a star field
in Eridanus.
(More images of 2007 XH16 from
2007-12-24/25 at near closest approach)
| MPL 2007 XH16 passing through star
field in Eridanus Asteroid appears as a 36 arc sec long streak in this 60 sec exposure |
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CCD Image 60 sec, 2x2 binning, C Filter 2007-12-22 21:41hUT (#245711) |
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NGC 7510 / Herschel VII-44 (Cepheus) |
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CCD Image |
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NGC 7261 (Cepheus) |
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CCD Image |
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Comet 8P/Tuttle - passing through star field in Cassiopeia |
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| Animated Sequence of CCD Images (8
frames)
60s exposures , 2x2 binning, C Filter 2007-12-22 23:22h UT (#245766-845) [ Part of a larger 2.5 MB animation of 80 frames ] |
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| Stacked CCD Images (25 frames)
25 x 60s exposures (average combine) , 2x2 binning, C Filter 2007-12-22 23:24h UT (#245790-814) |
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Comet 8P/Tuttle - colour image |
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| Approximate Colour CCD Image (CBVR)
Luminance : av 3x 30s (C), Red : av 3 x 30s (R), Green : av 3 x 30s (V), Blue : av 3 x 60s (B) 2007-12-22 18:09h UT (#245554-65) |
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Sharpless 2-155 / Caldwell 9 (Cepheus) |
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CCD Image Mosaic |
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Sharpless 2-155 / Caldwell 9 - earlier image (2007-12-06) |
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CCD Image Mosaic |
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Images collected for Astrometric Monitoring
of Nearby Stars Project
Images collected for Photometric Monitoring
of Variable Stars
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| This Web Page: | CCD Images - Session 245 (2007-12-22) |
| Last Updated : | 2019-08-10 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
