| Object: M100 (NGC 4321) | Date: 2018 May 15 |
| Type: Spiral galaxy | |
| Constellation: Coma Berenices | Time & altitude: 23.10 UT 44º |
| Catalogue data: | Seeing (5 high): 3/5 |
| R.A: 12h 19m | Transparency (5 high): 3/5 |
| Dec: 14º 25 | Telescope: 0.5m f4.1 Dob. |
| Magnitude 9.4 | Eyepiece 8mm Ethos x260 |
| Size (mins) 7 x 6 | Filters: None |
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Notes: Transparency has improved slightly. This galaxy has an oval halo. Hints of spiral arms were seen intermittently with AV, one each side of the core. After the event I note there are two 14th magnitude satellite galaxies in this field. I didn’t notice either, a pointer to the very average atmospheric conditions. Tried again on May 17 but the view was no better. |
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