From: Alan Friedman <alan@greatarrow.com>

Date: February 9, 2009 1:54:23 PM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Venus from Toronto


Boy - between Jim and Milton's posts I am totally confused on UV or not UV!!


good images - I shot some Venus data through my Baader CaK line filter last Friday. Have yet to process them, but I can tell that the cloud structures currently visible are very low contrast.


Not an easy thing to take pictures at that wavelength.


cheers,

Alan



On Feb 9, 2009, at 3:46 PM, Milton Aupperle wrote:

Hi Jim;

Great minds think alike. I shot venus last night (February 8) with
the C8 at prime and then with 2.5x televue (F25) using the
Grasshopper in 16 bit mode with a Schuller UV Cut filter from
Calgary. This was just as the sun went down and the Jet stream was
way north and far south of me for a change (split into two strands).










On Feb 9, 2009, at 3:16 PM, jimchung2338 wrote:


Seeing was predicted to be good to very good on Friday night, Feb 06,

and I captured Venus just as the Sun was setting through an old Baader

UV filter and a glass filter that transmits UV but blocks UV. This is

because the previous generation of Baader Venus/UV filters suffered

from IR leakage and Milton brought my attention to this fact last year.