NGC 2264 AKA Cone Nebula, Type: Bright Nebula, Const: Monoceros, Mag: 3.9, Size: 20'

• 04-Feb-12 - HX916 image of NGC 2264 (LX10 OTA at f/4.6 on G11, Ha exposure of 465 minutes total exposure [a stack of 15x15 minute unbinned Ha-filtered from the 11th and 8x30 minute unbinned Ha-filtered from the 12th], from Oceanside [seeing 5 (12th) and 7 (11th), transparency 3 (11th) and 5 (12th)], STV guided through ST80 at f/6). Processing: AIP (dark calibration, stacking), MaxIm DL (DDP - FFT Low-Pass Mild).
• 03Mar02 - HX916 image of NGC 2264 (f/5.4, TV101 on G11, LRGB of 40:18:18:18 [4 x 10 minute unbinned L, 5 x 3 minute 2x2 binned RGBs], STV eFinder guided, from Anza (seeing 8, transp 9, tracking 0.6X, 0.9Y @ 1 second). Processing: AIP (dark calibration and stacking), MaxIm (2X resizing of RGBs), AIP (color combine and G2V color balance), PaintShop (LLRGB processing, rotate to North-up orientation). Alternative LLRGB processing.
• 2002-Dec-03 - HX916 image of NGC 2264 (f/6.3, Meade LX10, an LRGB composite of 31:20:20:20 minutes of exposure, luminance from 2001-Nov-11 below (L+IR), 10x2 minute RGBs binned 2x2), STV guided, from Anza (seeing 8, transp 9, tracking 3.5X, 3.2Y @ 0.5 sec]). Processing: AIP (dark and flat calibration, stacking, color registration, color balanced G2V then Black Sky). Note the seriously out of focus blue filter. :( I'll have to check into this.
• 11/11/01 - HX916 image of the Cone Nebula (NGC 2264) (f/6.3, Meade LX10, 31 minute total exposure [a stack of 21 1 minute and 5 2 minute images), STV guided, binned 2x2, only dark frames applied, DDP with default parameters applied in AIP, from LBV)
  
• Digitized Sky Survey image of NGC 2264 for comparison.