Caldwell 36 (NGC 4559) The Koi Fish Galaxy

by Roman Hujer

Objects in field: NGC 4559, IC 3592

Equipment: Celestron EdgeHD 9.25", ZWO ASI2600MC Pro, ZWO ASI2600MM Pro

Integration: 8h

Caldwell 36 (NGC 4559) — The Koi Fish Galaxy Date: March 6, 2026 Location: Jablonec nad Nisou, Czech Republic Telescope: Celestron EdgeHD 9.25” at f/10 Camera (OSC): ZWO ASI260MC Pro — 30 × 180 s (C1 - Duo-band Ha & Oiii) & 60 × 120 s (L‑Pro) Camera (Mono): ZWO ASI2600MC Pro — 30 × 180 s (Ha) & 90 × 120 s (L‑Pro) Discovered by William Herschel in 1785 and located roughly 30 million light‑years…