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TMB 80/480 Piggybacked on a 8" Meade LX-90 GPS with standard wedge Meade DSI IIIc with Meade F6.3 Focal Reducer + 30mm Extension (gives F4.3) and Orion Skyglow filter. Autoguided using LX-90 with Astro Engineering .6x reducer & DSIc with 2.5S update rate in PHD (via GPUSB & APM)
6 480S Subs, Dark subtract done on the fly in Envisage, hand picked subs, flat frame, bias calibration and stacking done in AIP4Win 2.2 for each individual LRGB channel. Calibrated channels tangent stretched, Wavelet filter applied to sharpen features, then registered and joined in AIP4WIN 2.2 using the join colours tool (G2V method). Final finishing in Photoshop with autolevels, red curves tweak and a very slight unsharp mask.
Taken on 20-12-2009
Notes: Same data as previous 20-12-2009 post, the difference is the wavelet sharpening and slightly different brightness scaling.
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