David's Astronomy Pages
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Objects Session Notes
HD 209458 (Osiris) - Star with Extra-Solar Planet MPL 1992 UY4 (Minor Planet) Mars M33 - Spiral Galaxy Uranus MPL 2003 UB313
- F6.3 focal reducer added to optical train, to take system down to around f6.3 (2.62 arc secs per pixel at 2x2 binning). - BRVI filters added to filter wheel in place of RGB filters - Objective of session was to check out the updated optical train in preparation for future attempt to detect the extra-solar planet around HD 209458 (next eclipse due on 2005-08-12, clouds permitting !) - Acquired reference images of HD 209458 (15s exposure through V Band Filter) - Acquired images showing motion of NEO 1992 UY4, which is currently passing close to Earth (approaches to 16 LD on 2005-08-08) - Attempted to acquire images of new "10th Planet" (2003 UB313), but deteriorating sky conditions prevented getting images with sufficient magnitude reach. - Sky Conditions Graph - More Notes (including Temporary Frost Effect in CCD Camera)
| HD 209458 (Pegasus) (Alt Names : Osiris, HIP 108859, SAO 107623, GSC 1688:1821 ) |
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CCD Colour Composite (LRGB) Luminance 20s (C), Red 15s (R), Green 15s, (V), Blue 30s (B) 2005-08-05 23:17h UT(#90014-18) |
| HD 209458 (V Filter) |
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Annotated CCD Image 15 sec exposure (V filter) 2005-08-05 23:19h UT(#90016) |
| Previous Images : 2002-10-02 / 2004-08-20 |
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| 1992 UY4 (passing through
starfield in Aquarius) showing 22 arc minutes motion of asteroid over a 70 minute period |
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CCD Image Montage Top Left : 120 sec exposure. Centre : 45 x 20 sec exposures (1 min intervals). Bottom Right : 9 x 20s exposures 2005-08-05 23:28h UT to 2005-08-06 00:38h UT(#90023-86) |
| 1992 UY4 (Estimated Magnitude +13.1) |
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CCD Image 20 sec exposure (clear filter) 2005-08-06 00:05 h UT(#90059) |
 (Click here to show 1 MB Animation) |
| 1992 UY4 Orbital Path 1992 UY4 will approach to 16 LD (Lunar Distance) from Earth on 2005-08-08 It has a diameter of 0.8-1.9 km (physical data) |
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| Mars (84% phase) |
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CCD Image (1x1 binning) 0.3 sec exposure, clear filter 2005-08-06 00:41 h UT (#90090) |
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| M33 (Triangulum) |
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CCD Image , 7 x 60 sec exposure (average combine), clear filter 2005-08-06 01:01 h UT (#90094-99) |
| M33 - Negative Image |
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CCD Image as above (Negative Image) |
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| Uranus (2 moons, Umbriel & Oberon, are just visible) |
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CCD Image (LRGB) 3x20s (medium combine), C Filter 2005-08-06 01:10 h UT (#90107-09) |
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| 2003 UB313 Attempt Predicted Position of 2003UB313 marked by red circle. Deteriorating sky conditions unfortunately limited the magnitude reach of the image to around +16.5 and gave no hope of being able to see this 19th magnitude Kuiper Belt object, which lies at 97 AU distance and has recently been proposed as the 10th Planet. |
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CCD Image 2 min exposure, C Filter 2005-08-06 01:10 h UT (#90111) |
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| This Web Page: | CCD Images - Session 90 (2005-08-05) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
