The plan was to complement the L-Ultimate with the L-Synergy to also capture a sulfur signal, but due to unstable weather I changed my mind midway and dedicated the entire integration time to Ha and OIII. So there's still something left for another time. 

Scope: Askar FRA400 (400mm, f/5.6)

Mount: Juwei 17

Camera: ASI 2600MC Pro -10°C

Filter: Optolong L-Ultimate

Guiding: ASIAIR Plus in ASI 120MM

Integration: 183x300s (15) + calibration

Processing: PixInsight, Affinity Photo

Vrhnika (Bortle 4-5), Slovenia
27., 28., and 29. november 2025

by No-Lengthiness-9613

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