Observation by Grant Privett: Gyulbudaghian Outline
Uploaded by
Grant Privett
Observer
Grant Privett
Observed
2023 Jan 20 - 19:00
Uploaded
2023 Jan 21 - 16:57
Objects
Gyulbudaghian's variable nebula
Equipment
- 300mm f/4 Newtonian
- Trius 694 mono
- NEQ6+Rowan belt upgrade
Exposure
150x 30s
Location
Near Salisbury
Target name
Gyulbudaghian's nebula
Title
Gyulbudaghian Outline
About this image
I stacked some images of PV Cephei and Gyulbudaghian's nebula. The star itself isn't very faint, but the nebula remains very dim - though you can see an outline of the fan above and to the left PV Cep. It was obvious while stacking the images that the dim lobe of the nebulosity, below the star, was brighter than where the fan should be!
Its a shame that the focus drifted so far during the exposure - first object of the night.
Looking at it now, I am struck by how similar the cross of stars to the left of the nebula is, compared to the Southern Cross. With Gyulbudaghian standing in for the Coalsack.
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Comments
Nice image Grant. Your southern lobe is brighter than my southern lobe!!! I'm guessing you don't use a filter (?) whereas I use a luminance filter to avoid any potential aberrations from my prime focus corrector. I'm not seeing anything longer than 700nm. [I may try it without to see if there is a real difference].
It would be really nice if some of the serious imagers out there would start taking colour images of this nebula...it's beyond my limited processing skills and bank balance for remote imaging. Or maybe the Deep Sky section could lob some funding at it...?
Mike.
No, no filters yet here. Possibly later this year.
Did you mean colour as in R,G,B or R,V, I bands? I vaguely recall doing a short Faulkes North session on it (about 10 years ago) using filters and there was no B band, so I just used V,R,I. Might try and dig that out.
Yeah, I'm impressed when I see exposures >10 hours on remote scopes, but I assume most of those are scopes hosted there by the imager. Too expensive for me. I obviously made all the wrong career choices.
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