M51 Whirlpool Galaxy
Image information:
| Date: | 03/08/2026 |
| Equipment: | QHY178c camera with QHY CFW3S filter wheel using Baader CMOS optimized LRGB&Ha filter set through APM/LZOS 105/650 APO telescope on Pegasus Astro NYX-101 mount. The telescope was working at f6.2 with Astro-Tech 2" field flattener. |
| Image type: | LRGBHa |
| Exposure time: | 21X3min LRG&B, 21X5min Ha each binned 1X1. |
| Comment: |
Object information:
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Object designations: |
M51, NGC5194 (M51A) + NGC5195 (M51B), Whirlpool Galaxy |
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Object type: |
Pair of interacting galaxies |
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Object size: |
11' X 7' |
| Constellation: |
Canes Venatici
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Comment: |
M51 is a large spiral galaxy NGC5194 which is interacting with a much smaller neighbor NGC5195. Spiral structure of the Whirlpool has been influenced by the gravity of the smaller companion. That has distorted spiral arms and created huge areas of compressed hydrogen gas resulting in development of extensive starbirth regions. M51 is the dominant member of a small group of galaxies that also includes the Sunflower Galaxy (M63) and half a dozen other smaller systems. Whirlpool is 30000 kly distant and it spans some 50000 ly. |
Related images:
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List of related images: |
M51, LRGB, ST2000XM through WO ZS105ED telescope |