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Sh2-140 (Cep)
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| Date/Site: |
5., 6., 27. and 29. June 2018, AAR-observatory in Presberg |
Exposure/
Filter: |
RG: all 19 x 180 seconds
BL: all 20 x 180 seconds,
Hα: 105 x 300 seconds (-20°C) |
| Camera: |
QSI 632 with Astronomik Type II-Filters |
Optics/
Instrument: |
250mm f/4 Newton with Baader RCC1 on 10Micron GM1000 HPS |
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Guiding: Lodestar attached to a 61mm-finder,
focusing with Microtouch and FocusMax,
data acquired remotely using CCD-Commander and MaximDL 6,
calibration: MaximDL 6, processing: PixInsight 1.8 |
A lot of processing time was necessary for the large numer of Hα-frames, but the effect was surprisingly weak compared to a significantly lower number of frames. The powerful Hα-signal even overwhelms the finer RGB-structures.
Therefore the nebula is presented here in LRGB.
Sh2-140 (Cep)
Click on the image for a larger version
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© Friedhelm Hübner, last revision: 03.12.2023