enter image description hereI was taking photos of a storm moving through the area, Southwest of Fort Worth, Texas and caught this image in one of the series. The photography is a hobby. I was using my IPhone 6. I researched meteorological optical phenomena, rings, circles, halos, compared pictures I found and did not find anything similar. 6:45 in the evening. The angle of the phone was probably 60-70*;SSE sky with sun beginning to set in the West and the moon is visible low in the photo. Thanks.

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    $\begingroup$ A key question is did you see it visually as well at the time? If not, there's a high chance it's a digital artifact? $\endgroup$ – JeopardyTempest Aug 31 at 3:49
  • $\begingroup$ Could be last rays of the setting sun shining over the cloud next to this one, illuminating only this small part of this cloud. $\endgroup$ – Erik Aug 31 at 7:00
  • $\begingroup$ You could try asking photo.stackexchange.com/search?q=artefact. Images from there: google.com/… $\endgroup$ – Keith McClary Sep 2 at 23:22
  • $\begingroup$ Sorry, busy week so I was unable to follow up on the comments. The bright spot was visible and one of the reasons I took this particular shot. It was not clearly discernible as a ring. I went back and downloaded the series of pictures onto my computer to view from a larger source and did not find anything similar in the series. I could not discern any pixelation in the image either. It could be a artifact, but seems not to follow the usual form from the sources I’ve seen on limited reference. I’ll repost in the photo/stack/artifact when I get time. $\endgroup$ – Don Dean Sep 5 at 13:16

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