CTB1

CTB1 and Sh2-137

CTB1

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Object Info

Type

Emission Nebula

Constellation

Cassiopeia

Capture Details

Date

October 18, 2026

Location

Descanso, CA

Exposure

Ha 15x15, OIII 30x15, R 12x5, G 12x5, B 12x5 (bin 1x1)

Equipment

Optics

Takahashi FSQ-106N Refractor

Focal Length

530mm @f/5

Mount

Astro-Physics 1200GTO

Camera

Player One Zeus 455M PRO

Focuser

FLI Atlas

Filters

Antlia LRGB-V Pro series, 3nm Ha, OIII

Software

NINA, PixInsight, Photoshop