(Click on image for full size version)
|Description:||This spiral galaxy stands out very nicely
against many smaller and fainter background galaxies.
|Exposure Data:||6/7,8/2003. LRGB: 17x10m, 5x10m, 5x10m,
5x10m. RGB binned 2x2.
-10°C, 0.49 arc-sec./pixel.
|Processing:||Acquired via Sequencer in Maxim, reduced and
aligned in Mira. double size, Sigma Reject combine, RGB combine in Maxim. Lum
3 iterations in CCDSharp. LLRGB assembled
with curves, levels and other adjustments in Photoshop. SGBNR applied.
|Optical System:||12.5” Ritchey-Chretien @ F/9, ST-10XME NABG/CFW-8A
CCD camera, Paramount ME. AO-7 guided.
|Comments:||Seeing was 2.4 arc-sec., deconvolved to 1.8
arc-sec. Sky background was 20.2 mag/arcsec2.