Richard, how much light do you loose with each of those filters? (O3,Ha and
S) I've never looked thru any before and have been wondering.
I've yet to see this aspect of filters discussed in the product descriptions
online. Any reason also why you prefer Ha over Hb?
Thanks
Chris
-----Original Message-----
From: sf-bay-tac-bounces@No-Spam [mailto:sf-bay-tac-bounces@No-Spam]On
Behalf Of Richard Crisp
Sent: Monday, October 10, 2005 10:13 PM
To: The Astronomy Connection
Subject: [TAC] Completely reprocessed NGC281 with more exposure time
added(11hrs)
The headline says it all:
http://www.narrowbandimaging.com/ngc281_ap180_cm10_s2hao3_page.htm
have another look if you would.
I may add another two hours to the Sulfur channel and maybe another hour or
two to the Oxygen as well. Halpha seems fine at 2hours.
rdc
Received on Tue Oct 11 09:52:11 2005