NGC 2736 "Pencil". Taken from February to June 2023, plus seven frames from June 2022.
EQ6 Pro, TAL250K Klevtsov with 0.7x NPZ reducer corrector Mk2, ASI2600MM, Antlia 3nm narrowband filters and ZWO RGB.
Balcony in Brisbane (Bortle 8)
Full resolution on astrobin: https://www.astrobin.com/s5uawn/
Experimenting with non-Hubble way to compose HSO tricolor
R = H-alpha
G = (OIII - SII)
B = OIII
The stars layer is standard RGB composition
Total exposure time 85h 14 min
R: 20x2 ( 0h 40m )
G: 19x2 ( 0h 38m )
B: 18x2 ( 0h 36m )
Ha: 104x20 ( 34h 40m )
SII: 76x20 ( 25h20m )
OIII: 70x20( 23h 20m )