Sh2-92 — The Scream (Widefield)
Sh2-92, nicknamed "The Scream" for the anguished face that emerges in narrowband renders — a faint, rarely imaged H II region in Vulpecula. It's a genuinely big object: a cavity over 200 light-years across, roughly 14,000 light-years away, blown open and ionized by the Wolf-Rayet star WR 127. Six and a quarter hours of 3nm narrowband, processed with a Foraxx palette.
- Coordinates: RA 19h 47m, Dec +28° 15′ (Vulpecula)
- Optics: William Optics SpaceCat 61
- Camera: ZWO ASI2600MM Pro
- Mount: Sky-Watcher Wave 150i
- Filters: Antlia 3nm Hα / OIII / SII, 36 mm
- Integration: 6h 15m — Hα 2h 5m (25 × 300″), SII 2h 5m (25 × 300″), OIII 2h 5m (25 × 300″)
- Published: 2025-08-21 — on AstroBin