HFG 1

[jimao22]

Hi,

I saw awhile ago a picture made by Kitt Peak observatory (4 m telescope) - https://www.noao.edu/image_gallery/html/im1110.html - and I was amazed by this nebula. So I give it a try with my impressive MN190 and I gathered some signal in OIII (the strongest signal of this nebula) and in Ha - 14.6 hours in OIII and 12.5 hours in Ha.

My set-up is MN190 on EQ6 w/EQMOD belt drive, ATIK314L+ mono, Baader filters and TS OAG, all inside my ROR observatory from my backyard.

The result is down below and is the result of another 3.5 hours of precessing with my friend, George (see the topic "A project for the soul" on Observatories).

The FWHM of the raw images were around 2.6 and roundness around 0.15 - not very impressive, I had better times.

[laudropb]

Very nice image.

[opticalpath]

A difficult faint target .... nice job!

Adrian

[ChrisLX200]

Well I'm impressed ;-)  But now I have to go look it up to find out more about it - like where it is for a start!

ChrisH

[jimao22]

The nebula is located in Casiopeea.

Thank you all for apreciate !

I have to admit I need a lot more signal, especially in Ha where some details are in the core of the nebula. Perhaps another 20-30 hours of exposures can bring out more details, but for the moment this target is on hold. We'll see next year...

[ChrisLX200]

Yes I discovered it was in Cass immediately after clicking your link! You already have a substantial amount of data on it, 27hrs, and that's more clear sky than we've seen here during the last 3 months so I'm not about to try for it myself any time soon ;-) You've captured the OIII halo well, and I can make out the Ha gas tail faintly - in fact all the major features shown by a much larger telescope.

ChrisH

[opticalpath]

I'd love to try this target with my MN190 too,  but as things are in the UK, how long will we wait for 30+ hours of clear sky  ?

Adrian

[jimao22]

To encourage you, I have to admit I added all these data in few months, when weather and my time permitted.

Is a target for patient astronomers yet ! 

[jimao22]

My friend, George, played with the raw files I gave him and he obtained even a better result, in my opinion.

The Ha signal doesn't seems to be so weak anymore. Perhaps is just an illusion (like the song sais), but you can appreciate better than me.

[mikeyscope]

That's a really great result on a challenging nebula at that FL ...between the two images I prefer the first being more natural, I can't imagine that many hours of clear sky let alone on a single subject! 

[Tom OD]

I always enjoy newly seen objects. Seems faint too. You ve done to get it.

Tom.