M45 - Corrales NM - with star fix processing (CorralesRay)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 16 Tau · 17 Tau · 19 q Tau · 20 Tau · 21 Tau · 22 Tau · 23 Tau · 24 Tau · 25 eta Tau · 26 Tau · 27 Tau · 28 Tau · Alcyone · Asterope · Atlas · Barnard's Merope Nebula · Celaeno · Electra · IC 349 · LBN 770 · LBN 771 · LBN 772 · M 45 · Maia · Maia Nebula · Merope · Merope Nebula · NGC 1432 · NGC 1435 · Pleiades · And 11 more.

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M45 - Corrales NM - with star fix processing

Revision title: Rotated and combined with L

Powered byPixInsight

M45 - Corrales NM - with star fix processing

Revision title: Rotated and combined with L

Here is M45 from Corrales, NM.

I had been wondering what the ASI 1600mm "micro lensing" issue was, I was blissfully ignorant. I decided to image M45, and I discovered the issue first hand.

I imaged too long per channel 180s for RGB and 60s for Lum. I ended up with the following for my stack:

41 subs red (123 minutes)
50 subs green and blue (150 minutes each)
282 subs lum (282 minutes)

I wish I had a focal reducer!! I am too close to the object and missing out on some dust!

The RGB combined image had MAJOR micro lensing! But I was pleased that I was relatively successful in taming the issue by using the GAME mask script, Pixel math (with RGB expressions, mainly R), convolution and then color sat. I think it turned out pretty OK considered how rough it was at the start. I have updated a revision showing the RGB without the "star fix".

1600mm pro - camera to -5C, gain = 0
Scope - 104mm, F6.25
Mount - EQ6R - Pro
NINA for image control
PHD2 for guiding
PixInsight for post processing

Original
B
Final
C

B

Title: M45 with ZWO 1600mm-pro micro lensing

Description: here's the original RGB showing the micro lensing.

Uploaded: ...

C

Title: Rotated and combined with L

Description: Since it is cloudy in NM of late, I've added some Lum and then rotated by 90 degrees (and cropped) to provide a more traditional view.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	5348469
PixInsight job	P8X23K5SBDVLPGJN0MMLKTIXM23WJG5L
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h46m55s.86
RA (top/left)	03h49m11s.43
RA (top/right)	03h44m15s.76
RA (bottom/right)	03h44m41s.76
RA (bottom/left)	03h49m34s.66

Dec (center)	+24°05′58″.8
Dec (top/left)	+24°44′16″.2
Dec (top/right)	+24°38′56″.8
Dec (bottom/right)	+23°27′35″.1
Dec (bottom/left)	+23°32′50″.3

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M45 - Corrales NM - with star fix processing

Revision title: Rotated and combined with L

M45 - Corrales NM - with star fix processing

Revision title: Rotated and combined with L

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M45 - Corrales NM - with star fix processing

Revision title: Rotated and combined with L

M45 - Corrales NM - with star fix processing

Revision title: Rotated and combined with L

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