RED (RG610 Red Filter, 610-1100nm: NO IR
Rejection)0.13s 1 image
GREEN (CFW8C, 531nm central; BWHM 86nm) 0.29s8-10 images
BLUE (CFW8C, 450nm central, BWHM 116nm)1.00s7-9 images
Images bias, flat and dark
Seeing fair (5-7 Pickering).Transparency4-4.5 m. No wind. Light dew. Altitude
Dust clouds in
Chryse remain, clouds now in Eos and Margaritifer
Sinus. Possible dust in Aram.Dust bright in green as well as red
light. Dust clouds formed since 30 July also bright in blue. Novus Mons separating from SPC. Argenteus Mons remains
brilliant. Violet Clearing = 1+
® . .
. . . . . .Date: Fri, 01 Aug 2003
Subject: RE:Mars Images
Thanks you for the kind e-mail. …..I was on the Florida
Keys until yesterday and was not on e-mail. Tom Dobbins called
me and told me of your achievement. I think Saheki would be very proud to know what
his observations have started!
I have to leave for Ohio
Sunday to run the ALPO meeting and visit Dobbins, so I will miss a week of
imaging. I hope you keep the dust away until I return! I will have the
opportunity to meet Eric Ng, Tan WeiLeong, and Ed Grafton, so it should be fun. I am only sorry
that you are not able to join us -- perhaps next year??
Here are some .JPG images taken
between seafood and pina coladas on the Keys. I used a 10-inch MewlonDall-Kirkham, ParamountME,
and a ToUCam, eyepiece projection. The differences in
color occurred when I started using an IR rejection filter. This provided
somewhat better, more realistic color balance -- Mars looks more yellow than red through the
eyepiece. I also used an Adirondack PADC-1 variable prism to reduce prismatic
dispersion. The thing actually works!