M 55 · Globular cluster · Sagittarius
M 55
Seestar S50Sony IMX4622 hBortle 2–3
Description
Demo picture: ESO/J. Emerson/VISTA. Acknowledgment: Cambridge Astronomical Survey Unit (ESO, CC BY 4.0, https://www.eso.org/public/images/eso1220a/).
Session
- Total integration
- 2 h 1 min
- Sky darkness
- Bortle 2–3
- Dates
- 23 Oct 2026 – 24 Oct 20262 nights
- TelescopeZWO Seestar S50
- CameraSony IMX462
- Optics250 mm f/5 · 50 mm aperture
| Filter | Exposure | Frames | Total (h:mm) |
|---|---|---|---|
| UV/IR cutbroadband | 20 s | 364 | 2:01 |
Processing
- Tools
- Siril, GraXpert, Photoshop
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