Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Hourglass nebula  ·  Lagoon nebula  ·  M 20  ·  M 21  ·  M 8  ·  NGC 6514  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  NGC 6531  ·  NGC 6544  ·  NGC 6546  ·  The star 4Sgr  ·  The star 7Sgr  ·  The star 9Sgr  ·  Trifid nebula
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Lagoon and Trifid Nebula, Andrew Klinger
Lagoon and Trifid Nebula
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Lagoon and Trifid Nebula

Getting plate-solving status, please wait...
Lagoon and Trifid Nebula, Andrew Klinger
Lagoon and Trifid Nebula
Powered byPixInsight

Lagoon and Trifid Nebula

Equipment

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Acquisition details

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Description

Acquisition details:

Taken 6-7-16 at Atoka, OK

Scope: William Optics GT81 w/ 0.8x reducer (382mm focal length at f/4.7)

Mount: Orion Sirius EQ-G

Guidescope: Orion 50mm guidescope

Guiding camera: StarShoot Autoguider

Imaging camera: Canon t3i (unmodified)

ISO800

20x480" lights (2hr 40min total integration time)

26x darks

30x flats

200x bias

Processing steps:

PixInsight:

Batch PreProcessing to stack

ABE

Background neutralization

Color Calibration

Histogram Transformation

Followed this tutorial by Gerald Wechselberger to push nebulosity with pixelmath and other processes(dl.dropbox.com/u/57910417/Howto_enhance_nebuala_without_p...)

Photoshop:

Blended the starless pushed nebula photo with the original stretched and calibrated data by using luminance layer and masks

HLVG

Curves transformation for contrast

Back to PixInsight:

ACDNR (probably a bad placement on this step)

Still figuring out what workflow works best for me. I felt very unorganised.

Comments

Sky plot

Sky plot

Histogram

Lagoon and Trifid Nebula, Andrew Klinger