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M31 Andromeda

Classification: Spiral galaxy with M32, M110 (NGC 205)
Constellation: Andromeda (AND)
Object Location: Ra 00h 43m 35s Dec +41° 21’14° (current)
Size & Distance: 189.1 x 61.7 Apx 2.5 Million light-years.

Date & Location: 10-04/05-2024 and 10-17/18-2025 Lockwood Observatory, Descanso,CA.
Exposure: Ha-O3-LRGB, 510-930-67-60-60-60, Ha=34x15, O3=62x15, L=20x3.33, RGB=6x10 ea. (bin 2x2)
Optics: Takahashi FSQ106-EDX4 / 645 reducer @ f3.6 385mm / / FLI-Atlas focuser
Mount: Astro-Physics Mach 1 GTOCP4 / ATS 8x36 Pier.
Camera: Moravian C3-61000 Pro / EFW-3L-7/ Guided by ZWO 174mini / w OAG.
Filters: Astrodon 50x50 3nm Ha-S2-O3, G2 LRGB
Software: MaxImDL, CCDStack, Photoshop CC, PI.

Notes: Sky conditions: Average, Temp low 50’s
Image Field of view is 324 x 216 arcmin. Image Scale 4.06
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Ha and LRGB were done in Oct of 2024, O3 was done in Oct of 2025.
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