Re: M42 in a 2 inch refractor !!!
¿ªÔÆÌåÓýYou really do get some great images from the City Jim! It¡¯s vey impressive and certainly possible. ? I was merely speaking to Simon¡¯s comment about galaxies and nebula ?and ?the impact of light pollution on broadband vs. narrowband targets.. ? Andrea Girones BA, LL.B, MBA Girones Lawyers Professional Corporation -? Ottawa ? Personal Injury and Medical Malpractice
? ? From: [email protected] <[email protected]>
On Behalf Of James Sofia via groups.io
Sent: November 28, 2022 12:06 PM To: [email protected] Subject: Re: [oaog] M42 in a 2 inch refractor !!! ? Andrea, I use the Astronomic UHC filter for galaxies and find that I get good contrast with that filter from the city. ? Jim S? ? On Monday, November 28, 2022 at 11:51:50 a.m. EST, Andrea <agirones@...> wrote: ? ? The NBZ ?has great reviews! ? As it is a narrowband filter ( hydrogen and Oiii) it will really help with ?nebula ?photography from the City. ?That is what there are so many narrowband filters on the market for astrophotographers who live in light polluted areas. The Rosette, Orion and ?M1 are all targets that emit in Hydrogen alpha and Oxygen iii, (at least M1 will have both) ? Galaxies are broadband targets and will be hard from the city not matter what filter you use. ? Andrea Girones BA, LL.B, MBA Girones Lawyers Professional Corporation -? Ottawa ? Personal Injury and Medical Malpractice
? ? From:
[email protected] <[email protected]>
On Behalf Of Simon Hanmer via groups.io ? Thanks all ¡ ? Andrea ¡ yes indeed it is. I do like this filter ! ? Simon ? ?
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Andrea