#Sh 2-91, the Forgotten Veil Nebula

16 messages · Page 1 of 1 (latest)

simple torrent
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This nebula is fairly dim, and is often over looked due to it's bright and famous neighbors. Like the Veil Nebula, it's an SNR. However, unlike the Veil Nebula, this is incredibly dim in comparison. Normal broadband cameras and filters can only pick the brightest, smaller regions of this SNR. It's over 6 degrees in size, making it a challenge to fit it even with the Rokinon 135mm. Another difficulty, not many people shoot this nebula, so it was difficult guesstimating its size in NINAs framing, but it worked out ok.

Rokinon 135 f/2 with the ZWO ASI183MM Pro (first light!)
Antlia 3nm Oiii and Ha filters
AVX Mount (guided)

24x600s Oiii
12x600s Ha
6 hours total

Sh_2-91.png
noble idol
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Very nice! Feels like you still want a bit more exposure time, it looks like you brought out quite some noise due to its faintness

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Also, the Antlia filters don't really like going to f/2, especially at 3nm. So you may have really reduced your signal that way as well

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At f/2 you get bandpass shift that may get out of the range of your filters

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noble idol
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With the Antlia filters you can go to f3, so if you have stepdown rings, you can match that better probably

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noble idol
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Yeah I found that stepdown rings are more accurate with the aperture than the aperture blades, plus that way you don't get bad spikes lol

obtuse bough
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I was thinking about trying this target too the other night but decided not to in the end as i wasnt quite sure how faint it was

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Might still try it at some point, but i think ill wait for atleast a few clear nights

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Definetley would be a bit of a challenge even if i got use of the 533mc and esprit, + ill have to decide what section of it id image

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Although i haveny really seen anything on this target over 250mm in fl

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obtuse bough
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Oh nice

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Didnt help i couldnt actually find the name of the target

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I just knew it as the vulpecula SNR