NGC 6520 · Open cluster · Sagittarius
NGC 6520
Seestar S50Sony IMX46250 minBortle 6
Description
Demo picture: ESO (ESO, CC BY 4.0, https://www.eso.org/public/images/eso1307a/).
Session
- Total integration
- 50 min
- Sky darkness
- Bortle 6
- Dates
- 8 Sept 2026 – 9 Sept 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 | 150 | 0:50 |
Processing
- Tools
- Seestar app
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