The Sun, May 19, 2019, 1530 UTC (Brent Newton)

Contains: Solar system body or event

The Sun, May 19, 2019, 1530 UTC

Link: https://www.astronewton.com/gallery

Acquisition type: Lucky imaging

The Sun, May 19, 2019, 1530 UTC

Link: https://www.astronewton.com/gallery

Acquisition type: Lucky imaging

I've had the fortune to have access to a Solarmax telescope this past week, and while the weather was too poor to capture Sunspot AR2741 during its transit, I did find a nice pair of prominences on Sunday morning. The left one is caused by AR2741 as it passed out of view.

Prominence Stack:

- 15ms at Unity Gain (351)

- 1400 frames selected, 3x Drizzle

Sun Stack:

- 1ms at Unity Gain

- 3200 frames selected, 3x drizzle

________________________________________________________________________________________________________________________

PI Prominence Processing:

- Pulled Red channel for Luminance processing

- Deconvolution

PI Sun Processing:

- Used PixelMath to create Luminance using G and B channels averaged (R was overexposed)

- 2 passes of Deconvolution using Deringing and a Range Selection Mask to protect the Sun's edges

- MLT for slight sharpening and noise reduction using an inverted mask

- 2 passes of Unsharp Mask with an inverted mask to sharpen details

- "Stretched" using Histogram and Curves edits to bring down white point and increase contrast

Photoshop Processing:

- Applied Prominence image over Sun-exposed image using a blurred image copy as a mask (which was selectively blurred and adjusted to smoothly blend in the prominence details)

- High Pass / Overlay blending to increase details

- Slight correction of gradients on the sun using Curves

- Image flattened and artificial color balance applied for yellow coloring

Central USA

Solar

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The Sun, May 19, 2019, 1530 UTC

The Sun, May 19, 2019, 1530 UTC

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The Sun, May 19, 2019, 1530 UTC

The Sun, May 19, 2019, 1530 UTC

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