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NGC 7771 (Peg)
Click on the image for a larger version
| Date/Site: |
29. and 30. September, 1., 4., 5. and 13. Oktober 2024, e-EyE |
Exposure/
Filter: |
R: 50 x 180 seconds,
G: 47 x 180 seconds,
B: 39 x 180 seconds,
L: 81 x 300 seconds (-5°C) |
Camera/
Optics/
Instrument: |
ASI 2600MM Pro with Astronomik Type 2c-filter 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 |
The galaxy group around NGC 7771 and NGC 7769 in the constellation Pegasus exhibits strong gravitational interaction. Not only the two large ones, also the smaller galaxies NGC 7770, PGC214993, PGC 72612 and PGC214992 tug on each other and disrupt their outward appearance. They develop tidal tails of stars.
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© Friedhelm Hübner, last revision: 09.12.2024