Order by: Trending (past 30 days)Date
Community photo entitled  by Michael Teoh on 06/21/2021 at Penang, Malaysia

On 06/21/2021 06:33 pm by Michael Teoh| Penang, Malaysia

First successful attempt at taking a sunset image in the hydrogen alpha wavelength. Despite some thin clouds, the surface features can be seen clearly, including the sunspot in AR2833, a long filament nearby, and a few faint prominences near the limb. The result is beyond my expectation, given that the Sun was low in western sky at just 13° above horizon.

Lunt LS50THa telescope
QHY5L-II-M camera

Single frame extracted from video sequence
Wavelet sharpening with Registax 6
Enhancement and false color with Photoshop 2020