is there a best filter to use to view comet Neowise?

[pblackwell 53]

Hi all,

is there a best filter to use to view comet Neowise? 
 

Many thanks!

Paul

[Jiggy 67 770]

The only filter that maybe useful is a light pollution filter to assist with seeing the tail but I’m not aware of any other filter that will assist as a comet is just a point of light similar to a star. Someone else may disagree 

[pblackwell 53]

That’s what I thought. Not a big window to see it where I am so don’t want waste time trying different ones.

ill go filterless and will also try my light pollution ones.

thanks for your reply

 

[Louis D 3,757]

I've used a cheap M&SG filter to cut sunset haze a little bit to detect other horizon hugging comets in the past.

[John 34,555]

Lumicon do make a comet filter also known as the SWAN filter:

https://www.astroshop.eu/line-filter-sets/lumicon-filters-swan-band-comet-filter-1-25-/p,6750

Whether that works with all comet types I don't know.

 

 

[Merlin66 2,152]

Besides the obvious Swan bands, NEOWISE is showing a very bright emission of Sodium (Na) at 5890 A. Any filter which enhances the transmission in the wavelength should help.

(the attached annotated spectrum, based on an excellent spectrum from C Buil may help)