M1 - Test at f/10.456 (Paul Macklin)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: Crab nebula · LBN 833 · M 1 · MQ J053354.42+215825.5 · MQ J053403.04+215700.3 · MQ J053403.66+220230.1 · MQ J053431.99+215039.4 · MQ J053445.67+220558.1 · MQ J053445.89+220011.4 · MQ J053454.97+220342.7 · NGC 1952 · PGC 1660066 · Sh2-244 · WISEA J053434.35+220313.6 · WISEA J053444.08+215916.4

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M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

Powered byPixInsight

M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

First time setting the 8" EdgeHD up at its native resolution, without the Celestron 0.8x reducer.

I used the 5nm ALP-T dual Ha/[OIII], so I needed longer exposures. This integrates 36 x 10 min exposures.

Incidentally, without polar alignment, since I thought I was just out for a night of testing and figured I'd be messing with back focus. But this guide here was _perfect_, the back focus looked 100% spot on at the first try, and my guiding looked good, so my testing session became an imaging session. Win!

Technically, this is not f/10 (as advertised for simplicity) but f/10.456, so the focal length should be 2125 mm. The ASIAIR plate solved around 2100mm, so we're within a couple of percent.

Next test will get [SII]/Hb, and work to combine into 4-color.

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B

Title: improved noise reduction and sharpening

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Status	Advanced success
Started	...
PixInsight job	GN0M5RG5ML8JHGKGE0O026K1O0EMBRHJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h34m34s.693
RA (top/left)	05h35m29s.447
RA (top/right)	05h35m30s.375
RA (bottom/right)	05h33m39s.686
RA (bottom/left)	05h33m39s.247

Dec (center)	+22°01′18″.21
Dec (top/left)	+21°42′04″.63
Dec (top/right)	+22°20′24″.37
Dec (bottom/right)	+22°20′29″.93
Dec (bottom/left)	+21°42′11″.40

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M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

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M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

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Revision title: improved noise reduction and sharpening

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