NGC1793 / Helix Nebula (KiwiAstro)

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: Helix nebula · NGC 7293

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NGC1793 / Helix Nebula

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NGC1793 / Helix Nebula

Captured the Helix Nebula using a mix of 10 minute (UHC), 5 minute (UHC) and 2 minute (HA) subs attempting to bring out more detail than in my first photos at shorter exposures.

Still new at guiding although it seems to work relatively well for subs exposure this long.

Subs (UHC filter): 6 x 600s, 11 x 300s, 1 x 90s - all at gain 120, camerai cooled to -15C (23/10/2019)

Subs (HA filter) : 4 x 120s, gain 285, camera cooled to -15C (29/10/2019)

Calibration/stacking/processing in Pixinsight and slight curve/level adjustments in Photoshop. HA applied as luminance layer in Photoshop.

First time using an HA filter - some learning in progress on how best to use.

Final
Original
B

B

Description: Added HA data from 29 Oct 2019 / can see some slight improvements in contrast and especially centre of the eye. Applied as a luminance layer after processing of HA in pixinsight.

Uploaded: ...

Imaged with APT

Nebulae

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Status	Advanced success
Started	...
Astrometry.net job	3017349
PixInsight job	LLH2RXQPUMFP4HW7OTGJHK7R9C2FIE0W
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h29m43s.71
RA (top/left)	22h32m08s.92
RA (top/right)	22h30m28s.24
RA (bottom/right)	22h27m19s.63
RA (bottom/left)	22h28m58s.47

Dec (center)	-20°49′43″.9
Dec (top/left)	-21°15′45″.6
Dec (top/right)	-20°08′20″.1
Dec (bottom/right)	-20°23′29″.3
Dec (bottom/left)	-21°31′07″.2

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NGC1793 / Helix Nebula

NGC1793 / Helix Nebula

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NGC1793 / Helix Nebula

NGC1793 / Helix Nebula

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