Getting plate-solving status, please wait...
Helix Nebula: 61 hour balcony saga, 



    
        

            Igor Chekalin

Helix Nebula: 61 hour balcony saga

Getting plate-solving status, please wait...
Helix Nebula: 61 hour balcony saga, 



    
        

            Igor Chekalin

Helix Nebula: 61 hour balcony saga

Equipment

Imaging Telescopes Or Lenses
NPZ TAL-250K
Imaging Cameras
Canon EOS Ra
Filters
Antlia OIII 3.0nm 36mm · Antlia SII 3.0nm 36mm · Antlia H-alpha 3.0nm 36mm
Accessories
NPZ MKII 0.7x focal reducer for TAL-250K
Software
Adobe PS · DeepSkyStacker x64 DDS · The Imaging Catalyst APT - Astro Photography Tool · Christian Buil Iris · Ivan Ionov FITStacker
Guiding Telescopes Or Lenses
SVBONY SV106 60mm Achromatic Guide Scope
Guiding Cameras
ZWO ASI290M

Acquisition details

Basic astrometry details

Astrometry.net job: 5109384

Resolution: 1765x1481

Locations: Brisbane, Toowong, QLD, Australia

Data source: Backyard

Description

NGC7293, perhaps my main object of this summer winter, filmed almost every night during its visibility from the balcony.

Canon EOS-Ra DSLR on TAL-250K (10" Klevtsov-Cassegrain) with 0.7x flattner/reducer (NPZ MkII), mount Skywatcher EQ6R-Pro
Balcony in Brisbane, Bortle-7 sky.

1359 x 1 min RGB
1285 min by 5 and 10 min subexposures with H-alpla filter (Antlia 3nm), mostly taken with the Moon
1000 min by 10 min subs with O-III filter (Antlia 3nm)

Total 3644 min (60 h 44 m) of exposures taken during 32 nights in 2021:
31 of July, 04, 05, 06, 07, 11, 15, 16, 19, 21, 27, 28, 29 of August 06, 07, 08, 09, 10, 11, 13, 14, 14, 15, 16, 17, 22, 23, 24, 25, 02, 03, 04 of September.

Comments

Revisions

  • Final
    Helix Nebula: 61 hour balcony saga, 



    
        

            Igor Chekalin
    Original
    Helix Nebula: 61 hour balcony saga, 



    
        

            Igor Chekalin
    D

D

Description: Naturally starless. No neural network exploited. Massive faint stars was removed by substraction of Continuum image (intensity-scaled Red and Green channels for H-alpha and O-III respectively) brightest and unusual spectrum stars left a lot of residual artifacts which was manually removed by re-touching in PS

Uploaded: ...

Histogram

Helix Nebula: 61 hour balcony saga, 



    
        

            Igor Chekalin