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Sh2-68 (Ser)
Click on the image for a larger version
| Date/Site: |
15., 16., 21., 22., 25., 26. July, 1. and 21. August 2025, e-EyE |
Exposure/
Filter: |
R: 18 x 180 seconds,
G: 10 x 180 seconds,
B: 10 x 180 seconds,
L: 14 x 300 seconds,
Hα: 91 x 300 seconds,
O3: 57 x 300 seconds (-5°C) |
Camera/
Optics/
Instrument: |
ASI 2600MM Pro with Astronomik Type 2c-filters on 400mm f/5 Newton with 2" TS Comacorrector on AP1200 GTO |
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Data acquired remotely using N.I.N.A.,
Off-Axis-Guiding with ASI120,
Focusing with Microtouch,
Calibration with MaximDL 6, processing in PixInsight 1.8 using BXT and GraXpert |
In the summer of 2025, the old planetary nebula Sh2-68 was frequently shown in the forums. Since I don't own an SII filter and the nebula is very prominent in this spectral range, the image lacks a bit of depth in the red.
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© Friedhelm Hübner, last revision: 02.12.2025