David's Astronomy Pages
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Images (S472) |
Images Sessions |
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Images (S474) |
Objects Session Notes
NGC 3972 - Spiral Galaxy with Supernovae SN2011by UGC 4985 - Spiral Galaxy Variable Stars Photometric Monitoring - Variables - FS Aur, KR Aur, SY Cnc, R CrB, AM CVn, RS CVn, CI Cyg, S Cyg, SS Cyg, U Gem, AM Her, SS Her, U Her, BL Lac, RZ LMi, CY Lyr, GK Per, ER UMa, SU UMa -
Astrometric Monitoring - Nearby Stars - CN Leo
- Evening session (3.0 hrs) - Session operated under semi-automated control, with remote monitoring from indoors computer. - Ambient Temperature: +0.5 deg C (minimum) - CCD operation -25 degC (at 68% average cooling). - main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis.
NGC 3972 with SN 2011by (Leo) Image below
(2011-04-30.93) was taken 4.0 days after SN discovery. |
CCD Image (cropped) 5 x 90 sec exposure (average combine), 3x3 binning, C Filter 2011-04-30 22:14 h UT (#473037-41) 12" LX200R (at f/9.7) + ST-10XME |
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UGC 4985 (Leo) |
CCD Image (cropped, 100%
size) 4 x 120s exposure (average combine), 3x3 binning, C Filter 2011-04-06 00:08 hUT (#473165-68) 12" LX200R (at f/9.7) + ST-10XME |
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UGC 4985 - Earlier Image (2011-04-06) |
Annotated CCD Image (cropped, 100%
size) 120s exposure (single frame), 3x3 binning, C Filter 2011-04-06 00:08 hUT (#466098) 12" LX200R (at f/9.7) + ST-10XME |
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This Web Page: | CCD Images - Session 473 (2011-04-30) |
Last Updated : | 2017-12-10 |
Site Owner : | David Richards |
Home Page : | David's Astronomy Web Site |