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It may not be very scientific, but could we get an image block filled with the actual colour (or the closest rgb equivalent?) 70.66.73.48 07:05, 13 December 2006 (UTC)
I would be interested to know what quantity of energy or temperature this line relates to, and possibly how to calculate it or where to look it up. Hansschulze ( talk) 08:25, 7 February 2008 (UTC)
I've added corrections and details about H-alpha filters. I know what I have done is correct because I have got one.
However, I am having difficulty in finding decent citations because there is not much information out there except a few commercial sites.
Does anyone have any thoughts or information? Man with two legs ( talk) 20:04, 2 March 2014 (UTC)
Professional observatories use Lyot filters. There is an Existing Wikipedia page, with references, on this topic. Big Bear Solar observatory notes the use of Lyot filter on their website ( http://www.bbso.njit.edu/Research/FDHA/) These filters tend to be very expensive one-off items. PaulD821 ( talk) 23:46, 21 September 2016 (UTC)
![]() | This ![]() It is of interest to the following WikiProjects: | ||||||||||
|
It may not be very scientific, but could we get an image block filled with the actual colour (or the closest rgb equivalent?) 70.66.73.48 07:05, 13 December 2006 (UTC)
I would be interested to know what quantity of energy or temperature this line relates to, and possibly how to calculate it or where to look it up. Hansschulze ( talk) 08:25, 7 February 2008 (UTC)
I've added corrections and details about H-alpha filters. I know what I have done is correct because I have got one.
However, I am having difficulty in finding decent citations because there is not much information out there except a few commercial sites.
Does anyone have any thoughts or information? Man with two legs ( talk) 20:04, 2 March 2014 (UTC)
Professional observatories use Lyot filters. There is an Existing Wikipedia page, with references, on this topic. Big Bear Solar observatory notes the use of Lyot filter on their website ( http://www.bbso.njit.edu/Research/FDHA/) These filters tend to be very expensive one-off items. PaulD821 ( talk) 23:46, 21 September 2016 (UTC)