| Object: M75 (NGC 6864) | Date: 2018 September 13 |
| Type: Globular cluster | |
| Constellation: Sagittarius | Time & altitude: 20.15 UT 17º |
| Catalogue data: | Seeing (5 high): 3/5 |
| R.A: 20h 06m | Transparency (5 high): 3/5 |
| Dec: -21º 55 | Telescope: 0.5m f4.1 Dob. |
| Magnitude 8.66 | Eyepiece 8mm Ethos x260 |
| Size (mins) 6 | Filters: None |
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Notes: An easy star hop to this one thanks to nearby Mars! The visible diameter is only about 2 arcmins, nowhere near the catalogue size. The core is about one-third of the visible diameter. The cluster is not resolved, but the halo looks very grainy. |
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