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
M1 - Test at f/10.456, Paul Macklin
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M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

M1 - Test at f/10.456, Paul Macklin
Powered byPixInsight

M1 - Test at f/10.456

Revision title: improved noise reduction and sharpening

Equipment

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Acquisition details

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Description

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.

Comments

Revisions

  • M1 - Test at f/10.456, Paul Macklin
    Original
  • Final
    M1 - Test at f/10.456, Paul Macklin
    B

B

Title: improved noise reduction and sharpening

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M1 - Test at f/10.456, Paul Macklin