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Markarians Chain (Vir)
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| Date/Site: |
May 6. and 7., 2016, ITV, Gedern |
Exposure/
Filter: |
Lum 12 x 5 minutes,
red 12 x 5 minutes,
green 12 x 5 minutes,
blue 7 x 5 minutes (-20°C) |
| Camera: |
QSI 632 with SBIG- and Baader-filters |
Optics/
Instrument: |
4"-TMB refractor of the AAR on 10Micron GM1000 HPS |
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Guiding: Lodestar attached to a 61mm-finder,
focusing with USB_Focus and FocusMax,
automatic image acquisition with CCD-Commander and MaximDL 6,
calibration: MaximDL 6, processing: PixInsight 1.8 |
In the second half of the night the galaxies of the Virgo-cluster already approached the lightdome of the Frankfurt-area, but shooting a lot of frames kept the signal-to-noise-ration low.
By mistake I programmed only one frame for the blue channel for the second run of RGB-frames. And finally due to a complete power failure on the site in the early hours I missed them completely.
The Eyes (NGC 4438 and 4435) could be a rewarding target for the White Elephant.
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© Friedhelm Hübner, last revision: 03.12.2023