Celestial hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  Helix Nebula  ·  NGC 7293
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NGC7293 (Helix Nebula), snakagawa
NGC7293 (Helix Nebula)
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NGC7293 (Helix Nebula)

Getting plate-solving status, please wait...
NGC7293 (Helix Nebula), snakagawa
NGC7293 (Helix Nebula)
Powered byPixInsight

NGC7293 (Helix Nebula)

Equipment

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Acquisition details

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Description

It has been a while since the last time I targeted this popular target. 
The image is cropped not because of the vignetting of the Oiii and Sii frames (the flats took care of it well), but to focus on the nebula. 

Acquisition data is as follows:
TEC140ED+QUADTCC (F/5.0)
ZWO ASI2600MMPRO: T=-5 deg C, offset=51, gain=100
Astrodon 5nm filters (1.25"): Oiii, Sii
Chroma 5nm filter (2.0"): Ha

Exposure Data
Ha: 10 min x 42
Oiii: 10 min x 18
Sii: 10 min x  20

Color representation (*further tweaking applied in Photoshop)
R=0.2 Sii+ 0.8 Ha
G=0.2 Ha+0.8 Oiii
B=Oiii

Comments

Sky plot

Sky plot

Histogram

NGC7293 (Helix Nebula), snakagawa