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|Description:||This galaxy is 4.7 arc-min. across.
|Exposure Data:||4/30/2003. LRGB: 11x10m, 7x10m, 7x10m,
7x10m, RGB 2x2. -10°C, 0.49 arc-sec./pixel.
|Processing:||Acquired via Sequencer and Maxim, reduced and
aligned in Mira, combined with Sigma Reject plug-in and gradient correction
in Maxim, L:
10xRL in AIP4WIN, RGB combined 1.35:1.0:1.57 in Maxim, LRGB assembly,
curves, levels, USM other processing in Photoshop.
|Optical System:||12.5” Ritchey-Chretien RCOS Truss @ F/9, ST-10XME USB NABG/CFW-8A
CCD camera, L: AO7-guided, RGB: autoguided with Paramount ME mount.
|Comments:||First light with 12.5" RC truss. Average
L star sizes is 1.8 arc-sec.