Eastern Veil Nebula — Caldwell 33 (C 33), NGC 6992/6995

I’ve been wanting to capture this part of the Veil Nebula, and C 33 has turned out really nicely. This is the Eastern Veil Nebula in Cygnus, the glowing remnant of a massive star that exploded thousands of years ago. The long, delicate filament running through the frame is the feature that really stands out to me — pretty mad to think this is the expanding debris from a stellar explosion.

Processing notes
Captured with my Seestar S30 Pro on 12 August 2026 using an LP filter. I accepted 1,247 20-second nominal frames, with 534.3 minutes of total integration recorded in the Siril log. The data was preprocessed and stacked in Siril, then finished with 2× drizzle and AstroWizard. The recorded Siril total is retained because it does not match a simple 1,247 × 20-second calculation, so the exposure is described as nominal rather than recalculated.

Captured2026-08-12

Integration534.3 min

Frames1247

Exposures1,247 frames · 20s nominal exposure · 534.3 minutes recorded by Siril

EquipmentSeestar S30 Pro

LocationBradford, West Yorkshire

Sky darknessBortle 8

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