| Object: M13 (NGC 6205) | Date: 2018 September 14 |
| Type: Globular cluster | |
| Constellation: Hercules | Time & altitude: 20.00 UT 55º |
| Catalogue data: | Seeing (5 high): 2/5 |
| R.A: 16h 42m | Transparency (5 high): 4/5 |
| Dec: 36º 28 | Telescope: 0.5m f4.1 Dob. |
| Magnitude 5.9 | Eyepiece 17mm Ethos x120 |
| Size (mins) 17 | Filters: None |
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Notes: Resolution right across the cluster. Streams of stars flow out to the N and S, like iron filings in the field of a magnet. At x120 M13 looks very similar to M92 at x260. Galaxy NGC 6207 12.2m is in the same field of view to the NE. It is a 3:1 oval glow with the long axis aimed approximately at the centre on M13. IC 4617 15.5m is situated midway between the two. It wasn’t immediately visible and I didn’t hunt for it. |
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