Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
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M81 82 F/7.2, Ron Crouch
M81 82 F/7.2
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M81 82 F/7.2

Getting plate-solving status, please wait...
M81 82 F/7.2, Ron Crouch
M81 82 F/7.2
Powered byPixInsight

M81 82 F/7.2

Equipment

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Acquisition details

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Description

Another reference image with the SW120 Esprit.. I really need to go back to PSD to mix in Ha with galaxies. My attempt to do so in PI is lacking. This was again at the native F/7.2 from a pretty bright suburban location. Almost can get into the faint clouds.. Thinking that next year the 6120 camera will make that a bit easier. Of course heading to a good dark location make sense too. Hard to leave the comforts of home.

Comments

Revisions

  • M81 82 F/7.2, Ron Crouch
    Original
  • M81 82 F/7.2, Ron Crouch
    B
  • Final
    M81 82 F/7.2, Ron Crouch
    C

B

Description: Just trying to learn some new tools! This version had the RGBL masters built using LocalNormalization tools in PI. Also, rather than adjust color using spiral directly as white reference I used PhotometricColorCalibration tools. No Ha in this one at all.. 81x300L; 26x300B; 27x300G; 32x300R.. Black point a bit high to show all the dust in the region - somewhat poorly..

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C

Description: Another pass with PCC color calibration. Better noise reduction and a bit darker. Also got a little more saturation in the galaxies. No Ha data.. This was 81x300L; ~30x300RGB. SW120 F/5.2 with Riccardi 0.75 reducer. Gotta gt to a darker location to best show the dust.

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Sky plot

Sky plot

Histogram

M81 82 F/7.2, Ron Crouch