David's Astronomy Pages
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 Images (S109) |
 Images Sessions |
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 Images (S111) |
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Objects Session Notes
- 2.1/4 hour session, 94% phase moon, bright sky with cloud developing, poor seeing & poor sky transparency - main aim was to take further variable star measurements on Delta Cepheid - opportunity taken to monitor the two AXP stars and image a number of open clusters in Cassiopeia.. - despite passing light cloud reasonable images of the Moon were taken before finishing the session - More Notes
As part of an ongoing project examining the variability in Delta Cepheid, further image sets of the variable star & the reference star SAO 34542 were recorded at around 21:49h UT. Image sets comprised 7 sequences of images (3 x 0.2s V & 3 x 0.6s B) alternated between Delta Cepheid & reference star. These were analyzed using the methodology described under 2005-10-05 Notes, and combined with previous estimates from Oct 2005 and Jan 2006 (18:32h UT & 21:50hUT on 2006-01-03, and 23:50hUT on 2006-01-01).
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V Band Magnitude estimates for Delta
Cepheid |
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B Band Magnitude estimates for Delta
Cepheid |
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| Magnitude and colour variation in Delta
Cepheid based on observations on 11 observing sessions between 2005-10-02 and 2006-01-11. |
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| Further observations will be made during
future sessions in order to fully refine the light curve |
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Two Anomalous X-ray pulsers (AXPs), 4U 0142+615 and 1E 2259+586 (both lying in Cassiopeia) were checked for brightening. No indication of activity was observed for either AXP.
| Star field of 1E 2259+586
area no sign of AXP (mag limit ~ +15.0) |
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CCD Image 2 min exposure, C Filter 2006-01-11 22:09h UT (#110070) |
Reference Image (#81094) [ Baseline Images and More Information ] |
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Four open clusters in a region of Cassiopeia were imaged (NGC 659, NGC 663, NGC 743, SAC Tr 1). These are located in star charts below.
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Star Chart (made using TheSky, Software Bisque) |
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Star Chart (made using TheSky,
Software Bisque) |
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Cassiopeia (archive photo) |
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| Photo, 1999-Dec-12, 23:05 UT 50mm, f/3.5, Fujicolor Superia 400, 10 mins exposure Full 35mm frame, image enhanced |
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NGC 659 (Cassiopeia) |
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| CCD Mosaic (2 x 3), 75% size 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:18h UT (#110080-85) |
| Detailed Image of NGC 659 |
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| CCD Image (75% size) 2 x 2 min (average combine), 1x1 binning, clear filter 2006-01-11 22:18h UT (#110073-74) |
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NGC 663 (Cassiopeia) |
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| Central portion of CCD Mosaic (2 x
3) 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:35h UT (#110086-91) [ Full Size ] |
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NGC 743 (Cassiopeia) |
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| CCD Mosaic (2 x 3), 75% size 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:41h UT (#110092-97) [ Full Size ] |
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SAC Tr 1 (Cassiopeia) |
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| CCD Mosaic (2 x 3), 75% size 30sec exposure, 2x2 binning, C Filter 2006-01-11 22:46h UT (#110098-103) [ Full Size ] |
| Detailed Image of SAC Tr 1 |
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| Central portion of CCD Image 6 x 30sec exposure (average combine), 1x1 binning, C Filter 2006-01-11 22:55h UT (#110106-111) [ Full Size ] |
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Moon (94% phase) |
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| CCD Image Mosaic 0.11 sec exposure, B Filter 1x1 Binning/Resized 2006-01-11 23:06h UT (#110119-32) |
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| B&W CCD Image Mosaic (3 x 4) Image details as above [ Full Size ] |
False Colour CCD Image Mosaic (3 x 4) Image details as above [ Full Size ] |
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| Oceanus Procellarum / Mare Imbrian with crater Copernicus and Copernicus ray system Smaller crater with ray system is crater Keplar. Brilliant crater towards limb is Aristarchus (adjacent sinuous rille is Vallis Schroteri) |
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| CCD Image - Approximate
Colour Red : 0.11 sec (I Filter), Green : 0.11sec (V Filter), Blue : 0.11sec (B Filter), 1x1 Binning. Unsharp Masked 2006-01-11 23:20h UT (#110150-54) |
| NE region of the Moon / Mare
Serenitatus Large prominent dark region is Mare Serenitatus |
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| CCD Image 0.11 sec exposure, V Filter, 1x1 Binning. Unsharp Masked 2006-01-11 23:26h UT (#110162) |
| East region of the Moon Mare Serenitatus / Mare Tranquillitatus to left, with Mare Crisium (570 x 450 km) to right. The large bright ray crater to the west of Crisium is Proclus, whilst the largest crater within Crisium is Picard |
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| CCD Image 0.11 sec exposure, V Filter, 1x1 Binning. Unsharp Masked 2006-01-11 23:23h UT (#110157) |
| East region of the Moon in False
Colour (surface brightness but also representing approximate topography) |
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| CCD Image (false colour) Linear Scale (inverse spectrum) Image details as above |
| SE region of the Moon Collection of dark floored, flooded craters on SE limb is known as Mare Australe |
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| CCD Image 0.11 sec exposure, B Filter, 1x1 Binning. Unsharp Masked 2006-01-11 23:29h UT (#110170) |
| Southern region of Moon Heavily crated area. Bright crater is Tycho |
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| CCD Image 0.11 sec exposure, B Filter, 1x1 Binning. Unsharp Masked 2006-01-11 23:16h UT (#110141) |
| South polar region |
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| Portion of CCD Image (rotated
& enlarged) Image details as above |
| SW region of the moon / Crater
Tycho - colour image Crater Tycho (diameter 84km) with Tycho ray system |
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| CCD Image - Approximate
Colour Red : 0.11 sec (R Filter), Green : 0.11sec (V Filter), Blue : 0.2sec (B Filter), 1x1 Binning. Unsharp Masked 2006-01-11 23:34h UT (#110177-79) |
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West region of Moon, Mare Humorum / Mare Nubium |
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| CCD Image 0.11 sec exposure, B Filter, 1x1 Binning. Unsharp Masked 2006-01-11 23:14h UT (#110134) |
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| This Web Page: | CCD Images - Session 110 (2006-01-11) |
| Last Updated : | 2020-09-25 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
