M33 in LRGB. Data captured from SRO in California. I have some Ha as well for a future repro
Scope: FSQ-106ED
Mount: Paramount ME/AP900
Camera: QSI683
Filters: Astrodon Gen II LRGB, 5nm Ha, OII, SII (1.25")
Guiding: QSI OAG + Lodestar
Image scale: 2.094 arcsec/pixel drizzled x2
Exposures: 17x900s L, 8x900s R, 11x900s G, 13x900s B
Processing: PixInsight
It's a lovely object and I hope I have done it justice.
Bigger version here:
http://www.astrobin.com/151279/ The IIS site compression doesn't do any favours to the attached version.
Cheers,
Rick.