The Phantom ....... Sh2-173 in Cassiopeia

[Craney]

I've never imaged this one before and I was keen to do so after seeing a version online.

It is medium sized as far as nebulae go and is on the faint side, so quite hard to frame.    I do like a gas cloud that looks like something and this one, once orientated is quite striking...

Known as the "Phantom of the Opera Nebula"   or  Sh2-173.

Equinox 80  with Atik 414ex mono.    Narrowband  Ha,O3,S2  75mins each channel with 3 min exposures.   Slightly cropped.

Whilst setting up the image, I was amazed at the number of stars in the FOV,  normally i'm after small planetary nebula with the 8"SCT and APP has trouble stacking.

Anyway, I hope it doesn't scare you away from your dark sites !!

Sean.

 

Edited August 11, 2021 by Craney

[peter shah]

not one we see very often....nicely captured

[tooth_dr]

Really great Sean, and a new one to me to add to the list.

[carastro]

Very nice Adam, I am part way through doing this one myself, which being faint is quite challenging from my skies.

Carole 

[Lee_P]

Not sure I've seen that one before, thanks for sharing it.