David's Astronomy Pages
|
 Images (S334) |
 Images Sessions |
Home Page |
 Images (S336) |
|
Objects Session Notes
NGC 2169 - Open Cluster NGC 2022 - Planetary Nebula PGC 17033 - Galaxy Cluster (part of Abell 539) NGC 2194 - Open Cluster Astrometric & Photometric Monitoring - U Gem (dwarf nova)
- U Her (mira)
- BL Lac (blazar)
- R CrB, DY Per, RR Tau (variables)
- Gliese 412 (nearby stars)
SS Cyg, HIP 36208 (failed due to cloud/poor transparency)
- Evening session (6.1 hrs) - Ambient Temperature +1.5 degC falling to 0degC (minimum) before rising again to +1 degC by end of session - CCD operation -25 degC (at 69% average cooling). - main objective of the session was to acquire images of key selected stars for ongoing photometric and astrometric analysis. - opportunity taken to acquire images of a few deep sky objects -
|
NGC 2169 / Herschel VIII-24 (Orion)
|
|
|
|
CCD Image 3 x 60s sec exposure (average combine), 2x2 binning, C Filter 2008-12-18 21:31 h UT (#335228-30) |
|
NGC 2169 - detail |
|
|
|
CCD Image (Square root scaling) Image details as above |
|
|
|
|
|
Approximate Colour CCD Image 2x2 binning, Blue : 3 x 60s sec exposure (average combine), 2x2 binning, B Filter Green : 3 x 45s sec exposure (average combine), 2x2 binning, V Filter Red : 3 x 45s sec exposure (average combine), 2x2 binning, R Filter 2008-12-18 21:39 h UT (#335232-42) |
Back to Top
|
PGC 17033 / part of Abell 539 (Orion) |
|
|
|
CCD Image 4 x 180s sec exposure (average combine), 2x2 binning, C Filter 2008-12-18 21:54 h UT (#335245-49) |
|
PGC 17033 / Abell 539 - detail |
|
|
|
Negative CCD Image Image details as above |
|
|
|
|
|
Annotated Negative CCD Image (200% size) Image details as above |
Back to Top
|
NGC 2022 (Orion) |
|
|
|
CCD Image 3 x 45s sec exposure (average combine), 2x2 binning, C Filter 2008-12-18 22:05 h UT (#335252-54) |
|
NGC 2022 - detail |
|
|
|
Negative CCD Image (250% size, cropped) Image details as above |
|
|
|
NGC 2022 - spectra |
|
|
|
CCD Spectra 3 x 120s sec exposure (average combine), 2x2 binning, Star Analyser 100 Filter 2008-12-18 22:30 h UT (#335276-78) |
|
|
|
|
|
CCD Spectra (200% size, rotated, cropped) Image details as above |
Back to Top
|
NGC 2194 / Herschel VI-5 (Orion) |
|
|
|
CCD Image 5 x 60s sec exposure (average combine), 2x2 binning, C Filter 2008-12-18 22:38 h UT (#335281-85) |
Back to Top
Images collected for Astrometric Monitoring
of Nearby Stars Project
Images collected for Photometric Monitoring of Variable Stars
Back to Top
| This Web Page: | CCD Images - Session 335 (2008-12-18) |
| Last Updated : | 2023-03-13 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
