Hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  Helix Nebula  ·  NGC 7293
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Helix Nebula in Aquarius, 


            Steve Milne
Helix Nebula in Aquarius
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Technical card

Imaging telescopes or lenses: TEC-140

Imaging cameras: QSI 690 WSG-8

Mounts: 10 Micron GM2000 HPS II UP

Guiding telescopes or lenses: TEC-140

Guiding cameras: Starlight Xpress Lodestar X2

Focal reducers: TEC Field Flattener

Software: Sequence Generator Pro  ·  Adobe Photoshop 6 CS  ·  Open PHD PHD 2.5  ·  Pixinsight 1.8

Filters: Astrodon OIII 3nm  ·  Ha 3nm

Dates:Sept. 8, 2020

Ha 3nm: 20x1195" bin 1x1
Astrodon OIII 3nm: 17x1200" bin 1x1

Integration: 12.3 hours

Avg. Moon age: 20.43 days

Avg. Moon phase: 67.88%

Basic astrometry details

Astrometry.net job: 3836343

RA center: 22h 29' 40"

DEC center: -20° 50' 9"

Pixel scale: 0.743 arcsec/pixel

Orientation: 269.685 degrees

Field radius: 0.438 degrees

Resolution: 3310x2652

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


The Helix Nebula (NGC 7293, Caldwell 63) is a planetary nebula around 700 light years away in the constellation of Aquarius.

According to O'Meara (2016) the nebula was discovered by Georg Friedrich Julius Arthur von Auwers in 1862. However, Wikipedia lists the discoverer as being Karl Ludwig Harding probably sometime before 1824.

The nebula is the closest planetary nebula to Earth and is around 12' x 10' in size.

The Helix was photographed between 22 August 2020 and 8 September from a rig in Spain that is privately owned and operated by Barry Wilson and me.

Capture details are as follows:

Telescope: TEC 140
Camera: QSI 690
Filters: Astrodon
Mount: 10 Micron GM2000HPS

Ha: 20 x 1200s
OIII: 17 x 1200s

A total of 12 hours and 20 minutes exposure.

Processing: Steve Milne
Data: Steve Milne & Barry Wilson