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The Trapezium in M42


From the author of   Sizing Up The Universe

Click here for daytime image of M42.


M42

19:17 EST Jan 26, 2022.
ZWO ASI294MC-Pro on 10" RCOS at f/9.
5 minute LiveStack of 4-second exposures.
RL deconvolution in MaximDL and HDR stretched in Photoshop.


M42

18:44 EST Jan 15, 2020.
Starlight Express Trius SX-694 on 10" RCOS at f/9.
Hα = 41 mins, OIII = 42 mins, (guided 60-second subexposures).
RL deconvolution in MaximDL and HDR stretched in Photoshop.


Stretched and gentle unsharp-masking in Photoshop.
M42

HDR stretched in Affinity.
M42

21:36 EST Feb 4, 2019.
Starlight Express Trius SX-694 on 10" RCOS at f/9.
Hα = 20.5 mins, OIII = 17.5 mins, (unguided 30-second subexposures).



M42

18:53 EST Jan 26, 2016.
Starlight Express Trius SX-694 on 10" RCOS at f/9.
Hα = 22 mins, OIII = 33 mins, (unguided 15-second subexposures).
Richardson-Lucy deconv. Photorealistic HDR stretch.


Gentle
M42

Dramatic
Trapezium

22:18 EDT Nov 25, 2006.
Starlight Express SXV-H9 on 10" RCOS at f/9.
Hα = 32 mins, OIII = 35 mins, (guided 1-minute subexposures).
Richardson-Lucy deconv. Log stretch.

A simple log stretched version: large, small.
An aggressively processed version: large, small.


Trapezium

01:35 EST Oct 31, 2005.
Starlight Express SXV-H9 on 10" RCOS at f/9.
L = 110 secs, Hα = 15 mins, OIII = 225 secs, R = 120 secs, G = 112 secs, B = 112 secs (guided short subexposures).
Log stretch.
Richardson-Lucy deconv.

Richardson-Lucy deconv.
Log stretch.
Trapezium

Gamma stretch.
Trapezium

Here's the 2 minute stack of R frames deconvolved with Richardson-Lucy deconvolution algorithm. Runaway star, the Becklin-Neugebauer (BN) object, is marked.

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