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Notes - Session 429 (2010-09-26)
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2010-09-20 Spectra Filter Focussing (Star Analyser 100) 2010-09-26 Spectra Imaging Images from 2010-09-26 >>
Series of Best Focus measurements of HIP 92833 (G8III spectral type) were
taken with
Clear Filter (at 7.8 deg C) and Star Analyser 100 (at 8.0 degC)
[ Note : Min Session Temp 7.6 degC, climbing to 9 deg C as cloud cover came
over]
C Filter - Best Focus 3307
S Filter - Best Focus 2756 from zero order star
S Filter - Best Focus 2645 from first order spectra visual sharpnessS-C Focus Offset = -551 from zero order star (cf -557 previous offset )
S-C Focus Offset = -662 from first order spectra visual sharpness
Images and graphs are shown below:
|
Double Star - HIP 92833 / HIP 92829 |
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| Annotated CCD Image (cropped) 3s exposure (single frame), 3x3 binning, C Filter 2010-09-20 (#snap) 12" LX200R (at f/9.7) + ST-10XME |
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Slitless spectra of HIP 92833 taken with Star Analyser (3x3 binning) |
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| Annotated CCD Image (
cropped) 1s exposure (single frame), 3x3 binning, S Filter 2010-09-20 (#snap) 12" LX200R (at f/9.7) + ST-10XME |
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Slitless spectra of HIP 92833 taken with Star Analyser (1x1 binning, rotated) |
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| Annotated CCD Image (
cropped) 1s exposure (single frame), 3x3 binning, S Filter 2010-09-20 (#snap) 12" LX200R (at f/9.7) + ST-10XME |
| Example Screen Captures of example
frame shown in RSpec -Realtime Spectroscopy Software (http://rspec-astro.com/) |
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| Focus Profile based on Zero Order Star Image |
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Images and graphs shown below.
| GK Per (Persus) |
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| CCD Image Spectra (rotated
& cropped) 20s exposure (single frame), 1x1 binning, S Filter 2010-09-26 (429179) 12" LX200R (at f/9.7) + ST-10XME |
| Z And (Andromeda) |
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| CCD Image Spectra (rotated
& cropped) 20s exposure (single frame), 1x1 binning, S Filter 2010-09-26 (429179) 12" LX200R (at f/9.7) + ST-10XME |
| U And (Andromeda) |
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| CCD Image Spectra (rotated
& cropped) 20s exposure (single frame), 1x1 binning, S Filter 2010-09-26 (429179) 12" LX200R (at f/9.7) + ST-10XME |
| W And (Andromeda) |
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| CCD Image Spectra (rotated
& cropped) 20s exposure (single frame), 1x1 binning, S Filter 2010-09-26 (429179) 12" LX200R (at f/9.7) + ST-10XME |
| S Cyg (Cygnus) |
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| CCD Image Spectra (rotated
& cropped) 20s exposure (single frame), 1x1 binning, S Filter 2010-09-26 (429179) 12" LX200R (at f/9.7) + ST-10XME |
| Uranus |
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| CCD Image Spectra (rotated
& cropped) 20s exposure (single frame), 1x1 binning, S Filter 2010-09-26 (429179) 12" LX200R (at f/9.7) + ST-10XME |
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| This Web Page: | Notes - Session 429 (2010-09-26) |
| Last Updated : | 2015-05-15 |
| Site Owner : | David Richards |
| Home Page : | David's Astronomy Web Site |
