By Ragini Chaturvedi | 2021-06-21
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![Community photo entitled by Michael Teoh on 06/21/2021 at Penang, Malaysia](https://earthsky.org/upl/gravity_forms/6-d184048789a60d766a02a8e43117298b/2021/06/Sunset_20210621.jpg)
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