Hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  Helix nebula  ·  NGC 7293  ·  NGC7293  ·  PK036-57.1
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Helix Nebula in HA, 



    
        

            Diego Cartes
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Helix Nebula in HA

Getting plate-solving status, please wait...
Helix Nebula in HA, 



    
        

            Diego Cartes
Powered byPixInsight

Helix Nebula in HA

Imaging telescopes or lenses: Televue TV-76

Imaging cameras: ZWO ASI 1600MM Cooled Pro

Mounts: Celestron Advanced VX

Guiding telescopes or lenses: Celestron 50mm Guide Scope

Guiding cameras: Meade DSI Pro I Monochrome

Focal reducers: Televue 0.8x focal reducer / field flattener

Software: PixInsight 1.8 Pisinsight 1.8

Filters: ZWO H-alpha 36mm

Accessory: ZWO 7x 36mm Filter Wheel (EFW)  ·  Intel NUC  ·  Arduino ASCOM Focuser Pro2  ·  QHYCCD Polemaster


Dates:Sept. 22, 2019Oct. 5, 2019Oct. 6, 2019

Frames:ZWO H-alpha 36mm: 45x900" (11h 15')

Integration: 11h 15'

Darks: ~42

Flats: ~25

Bias: ~50

Avg. Moon age: 12.62 days

Avg. Moon phase: 50.53%

Bortle Dark-Sky Scale: 5.00


Astrometry.net job: 2948212

RA center: 22h 29' 39"

DEC center: -20° 50' 6"

Pixel scale: 2.168 arcsec/pixel

Orientation: 82.428 degrees

Field radius: 0.719 degrees


Resolution: 1824x1544

Locations: Backyard, Colina, Region Metropolitana, Chile

Data source: Backyard

Description

The Helix Nebula is an example of a planetary nebula, formed by an intermediate to low-mass star, which sheds its outer layers near the end of its evolution. Gases from the star in the surrounding space appear, from our vantage point, as if we are looking down a helix structure. The remnant central stellar core, known as the central star (CS) of the planetary nebula, is destined to become a white dwarf star.[Wikipedia]

Altought my setup is primarily focused on widefield imaging, i wanted to know how much detail i could get. This narrowband image shows various nebular rings, some of them very far away from its center, and also some cometary knots can be inferred at the "iris" part of the nebula.

Here is a very helpful image of the structure of the Helix Nebula, taken from this article on Astronomy Magazine.

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Sky plot

Sky plot

Histogram

Helix Nebula in HA, 



    
        

            Diego Cartes