David's Astronomy Pages
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 Images (S278) |
 Images Sessions |
Home Page |
 Images (S280) |
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Objects Session Notes
NGC 4490 - Spiral Galaxy with Supernovae 2008ax NGC 4226 - Spiral Galaxy Astrometric & Photometric Monitoring - RX And, U Mon, DY Per (variables) - attempts on U Gem (cloud)
- Evening Session (1.6hr) - CCD operation of -20 degC
(at 66% average cooling).- main objective of the session was to demonstrate observatory / imaging setup to a fellow member of my local astronomy society. This was achieved despite patchy cloud. - opportunity was taken to acquire images of certain selected stars for ongoing astrometric analysis together with images of a supernova in NGC 4490
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NGC 4490 with SN 2008ax (Canes
Venatici) Image below
(2008-04-02.88) was taken 30.4 days after discovery. |
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| Annotated CCD Image 7 x 120s exposure (average combine), 2x2 binning, C Filter 2008-04-02 21:04UT (#279042-48) |
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Earlier Image of NGC 4490 & SN 2008ax |
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| Annotated CCD Image 7 x 120s exposure (average combine), 2x2 binning, C Filter 2008-03-08 00:48 hUT (#273136-42) |
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Earlier Image of NGC 4490 (Pre-SN) |
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| CCD Image 5 x 180s exposure (average combine), 2x2 binning, C Filter 2006-12-20 06:30h UT (#167511-15) |
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NGC 4226 (Canes Venatici) SN 2008bn - not visible in image below |
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| Annotated CCD Image 120s exposure, 2x2 binning, C Filter 2008-04-02 21:17UT (#279052) |
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NGC 4226 - detail |
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| CCD Image (300% size scaling) Image details as above |
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Earlier Image of NGC 4217
(centre) |
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| CCD Image 3 x 2 min (average combine), clear filter 2006-01-02 01:55h UT (#108131-33) |
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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 279 (2008-04-02) |
| Last Updated : | 2015-05-16 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
