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David Callejas

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January 20, 2019

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Michael Teoh
Heng Ee Observatory, Penang, Malaysia.

01/14/2024
11:21 am

Photographer's Website

Equipment Details:

APM-TMB 228/2050 Telescope
Lunt Solar Wedge
Baader ND filter OD 3.0
Baader Solar Continuum 540nm
Tele Vue 3x Barlow
QHY5III678M Camera

Post-processing Details:

Stacked with AutoStakkkert!4
Wavelet adjustment with Registax 6
Enhancement, mosaic and false color with Photoshop 2020

Image Details:

The active region AR3545 first emerged on January 9, 2024. Despite not showing much growth as it turned towards the Earth, the size of the main sunspot remains an eye-catching 3-Earth diameters. On a rare second clear day in a row, the brief moment of good seeing with newly improved equipment had made it possible to capture a clear view of the active region with the huge sunspot.

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January 20, 2019

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David Callejas

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About the Author:

David Callejas, Marketing Director, helps bring EarthSky's content to the world via online ads and other products. He creates strategies that help people around the world find us and appreciate the work we do. He helps manage the EarthSky Store and bring to you the new products that you love. He's the chief liaison between EarthSky.org and the world of commerce. All that, plus he helps post content and populate our pages on Facebook, Google+ and Twitter. Go David!