Veil nebula

[Brian W (Brian)]

Hi Liz, as an alien female you may not be familiar with the human concept of flirting. The first rule is to never make direct eye contact... or at least not until you have seriously noticed each other.

Also as an alien it might be that you are not aware that the veil is and was used to hide and entice.

Many have found that flirting works and patience is almost always rewarded.
Brian

[Liz]

Originally Posted by Brian W

Hi Liz, as an alien female you may not be familiar with the human concept of flirting. The first rule is to never make direct eye contact... or at least not until you have seriously noticed each other.

Also as an alien it might be that you are not aware that the veil is and was used to hide and entice.

Many have found that flirting works and patience is almost always rewarded.
Brian

well, the veil is certainly pretty enough to be used for this practice.

[astrospotter (Mark)]

Liz, which UHC did you use? Lumicon? Not all are the same for H-Alpha.

Lumicon cuts out all H-Alpha I think (see http://astrosurf.com/buil/filters/cu...#Lumicon%20UHC)

Baader UHC-S and Astronomik UHC filters will let that fairly important line through nicely. Our eyes are not very sensitive there but 50% of a strong signal is better than none at all. Our eyes love OIII and H-Beta but the H-Beta in these things is generally way way down from H-Alpha. H-Beta is of course our good old horsehead or California nebula specialized filter.

Something I notice is that use of an Omega NPB filter helps nebula that have a fairly strong H-Alpha component (like Veil, North American Nebula, and Dumbell Nebula). Our eyes falloff on red but since the nebula is strong in H-Alpha you get just a bit more. The Lumicon UTC allows only a little H-Alpha but not a lot like the NPB filter or Baader and Astronomik UHC filters. NPB is the one I switch back to from time to time against the OIII because sometimes it really helps bring things out a bit more. Not all UHC are created equal.


The Astronomik UHC and Baader UHC-S filters will allow H-Alpha as well as Nitrogen II come through so that one may be nice as well (cannot comment, have only seen it's specs). M27 is strong in Nitrogen 2. Astronomik UHC is not a narrow band around the H-Alpha like the NPB or Baader so the deeper red components of background glow may cut contrast a little more than NPB. Again, only pure chart reading and really deep reds our own eyes cut out anyway.

Would be nice to have the bucks to buy them all ... but that is another thread on IceInSpace

so many filters ... so little cash.

[Liz]

Thanks for that info Mark ... it was a Baader UHC.

Just found this interesting article from Skyhound -

http://observing.skyhound.com/archiv.../NGC_6960.html

[astrospotter (Mark)]

That is I think almost the best of the best UHC from the graphs although it is a bit fat in the O3 area which impacts contrast a bit I should think.
I am starting to think it may be the way to go. It has higher transmission and a flatter band for those H-Alpha and Nitrogen 2 reds.

For me up north here I think of the Veil as your Vela Super Nova but not as kewl. I got lost in that Vela Supernova back down there in March. All wispy and complex. But from here (+36) you can sort of forget about the Vela Supernova giving up all that wispy stuff seed down south.

I just wish those little tiny filters had a little tiny price tag.