UV and IR

[Stub Mandrel]

UV and IR are often seen as the foes of imagers, but plenty of space missions concentrate on these bands.

Has anyone tried imaging with filters such as a Wratten 18A that just lets UV through? This could provide an interesting perspective on galaxies with a lot of star formation, for example M31 might just show a the active outer regions.
 Orion would have Rigel very bright but Betelgeuse might hardly register.

Overlayed in the same way as Ha it might highlight a completely different perspective on stellar targets in contrast to nebulas and Ha.

I'm, not sure what IR might show, but perhaps it would accentuate dust or the integrated flux nebulosity?

[D4N]

The problem is the amount of absorption and diffraction outside of the visible spectrum makes it difficult to image faint objects at these wavelengths.

Planetary and solar imaging are performed outside of the visible spectrum as the targets are bright and this can reveal extra detail.

[Thalestris24]

Hi

I've done some uv and IR imaging with a mono dslr. Neither seemed to show very much of interest but both were very good at eliminating lp! Here's a link Unbeknownst to me at the time, the camera was developing a fault causing the lines across the images. Sadly, it died completely not long after

Louise

[Stub Mandrel]

Thanks, sounds like it may be a way of getting a tighter star layer if nothing else!

[Thalestris24]

4 hours ago, Stub Mandrel said:

Thanks, sounds like it may be a way of getting a tighter star layer if nothing else!

However, there's no colour, of course, and you may lose some red/orange/yellow stars though I've never checked