The prominence near AR2741 has all but disappeared, but the other one is still there. The animation shows the prominence development over the last 24 hours.
Solar
Sun 19/05/2019
No chance of disc detail today. Just a quick gap in the cloud for the prominences. The upper one is in the vicinity of AR 2741 as it disappears.
Sun 16/05/2019
Activity now quietening, but nice juxtaposition of AR 2741 and prominence this morning.
Sun today – 15/05/2019
AR 2740 is approaching the limb but 2741 is still prominent.
Sun today – 13/05/2019
AR 2740 is vanishing but 2741 is still prominent.
Sun – AR2741 and 2740 – 12/05/2019
2 interesting sunspots today.
Sun action : science day RAG
Between clouds , managed this stirring sight. Very pleased to read that AR had appeared , this being AR 2738 which had disappeared around the limb for two weeks. In white light photosphere view there was plenty surface action and a couple of small pores. Plages usually show up here , but it was difficult viewing being near the limb. In Ha there was plenty action with arching prominences, plasma condensing and surface granulation.
A very fine show for our current solar minimum . 35 mm of aperture and wide field does give grand views,
Nick.
AR 2738 animation 10-15/04/1019
Here is an animation of Sunspot AR 2738 in H alpha light created from images taken at the same time each day over a 5 day period. Some correction for foreshortening has been applied before the animation was created.
AR 2738 progress April 2019
Here is a collage of AR 2738 on most of the days that it was visible.
