| Object: M5 (NGC 6531) | Date: 2018 August 2 |
| Type: Globular cluster | |
| Constellation: Serpens | Time & altitude: 21.15 UT 30º |
| Catalogue data: | Seeing (5 high): 2/5 |
| R.A: 15h 19m | Transparency (5 high): 4/5 |
| Dec: 2º 05 | Telescope: 0.5m f4.1 Dob. |
| Magnitude 5.7 | Eyepiece 8mm Ethos x260 |
| Size (mins) 23 | Filters: None |
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Notes: Half a degree N of 5th magnitude star 5 Serpens. This cluster is so much better than the numerous more southerly globulars I’ve looked at recently in Sagittarius & Scorpius which appear miserable from here. Resolution into stars achieved right to the centre. Its diameter across the tenuous outer reaches is around 20 arcmins . |
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