Albert;
30 hours - that takes dedication...! This is a very nice image. Keep them
coming...
Are you shooting through Red, Green, Blue, OIII, SII and clear filters?
What's the scope, mount and camera?
Question; what was the rationale behind selecting the current colors for the
Hubble Color palette? I can understand Blue or Blue/Green for OIII and Red
for Sulfur II. But why Green for Ha? I know the spectral lines of Ha and
SII are red and deep red.
Jim
jimwaters@xxxxxxx
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Albert Barr
Sent: Sunday, July 02, 2017 2:18 PM
To: az-astroimaging@xxxxxxxxxxxxx; az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] (no subject)
This is 30 hours of narrowband on the North American and Pelican mapped to
Hubble colors.
Happy 4th
Albert
https://www.flickr.com/photos/49526053@N04/35678470585/in/dateposted-public/
<https://www.flickr.com/photos/49526053@N04/35678470585/in/dateposted-public
/>
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