Solar Observing Campaign 2022

Latest observations added at the top.

Images taken with Lunt LS60 or Lunt LS100 in single stack or double stack mode as indicated near the image. Using native focal length for full disk and 2/5x or 3x Barlow lens for prominence and surface detail.
Recording with ASI174. Typically 10% to 20% of 750 / 1000 / 2000 / 5000 frames stacked in AutoStakkert!3 wavelet sharpening in Registax 6 and finishing in Photoshop CS2.
Time-lapse videos with Python script and ffmpeg.

2022-08-27 19:24UT. Following online information there was a nice tall prominence today that I wanted to capture. I didn't have the 4inch scope ready so I quickly setup the 60mm Lunt pressure tuner scope and ASI174MM camera. The image is a composite of 2 exposures adjusted for surface and prominences respectively.

2022-08-12 28:37UT. The seeing was mixed today. Especially when using the 3x Barlow lens some recordings looked OK while other were not usable after stacking and processing.  First an overview of the disk with prominences.

2022-08-12 19:06UT and 19:41UT. Two examples of surface activity. A nice combination of sunspot, filament, and bright activity spots as well.

2022-08-12 19:50UT and 19:53UT. Two nice areas of prominences along the limb. I thought about making a series recording but the seeing variability would not have allowed for a smooth time lapse video later.

2022-07-16 18:39UT. Some very nice activity on the Sun today. There were multiple active regions around sun spots, but the dominating feature is a large arching prominence. This is a composite image of an exposure for the surface and one for the prominences.

2022-07-16 18:54UT. The highlight of today surely was the large prominence at the solar limb. This detail exposure using the 3x Barlow lens is adjusted to show detail on the chromosphere surface as well as in the prominence.

2022-07-16 19:01UT. The same region as above a few minutes later. Here we are using a composite of two images. One exposed for surface detail the other for prominence. This prominence is quite bright, so the gain of two exposures is not as evident.

2022-06-19 18:49UT. There was a lot of activity on and above the Sun today. As we are near the Sun's maximum northerly declination the time window is actually quite short until the Sun gets behind the roof. So not much time for long sequences for time-lapse. The image is a combination of exposures for surface and prominence brightness.

2022-06-19 19:29UT. There were many nice areas of activity that were observed with 3x Barlow lens for better image scale. Here a nice combination of sunspot a filament.

2022-06-19 19:05UT. A nice active sunspot with even some flare activity.

2022-06-19 19:33UT. Some activity near the limb. With curves brightening we can show the chromosphere above the Sun's limb. This would show more clearly with double stacked filters.

2022-06-19 19:09UT. There were really some very nice prominences today. Some with very detailed filaments structures.

2022-06-19 19:20UT. Another pair of two prominence side by side.

2022-06-19 19:25UT. An extended prominence above the solar surface.

2022-05-21 19:32UT. I wanted to give the Lunt60 solar telescope some usage and recorded the solar activity today with it in double stacking configuration. With double stacking the filter bandwidth is narrower and surface and prominences can be show in the same exposure. The processing used a mask to enhance the prominences leaving the small brighter rim around the Sun's disk.

2022-04-17 18:47UT. Today there was some good activity on the Sun. Most notably the two prominences left and the active sunspot region on the left as well.

2022-04-17 18:56UT. Showing the active sunspot region near the limb.

2022-04-17 19:15UT - 20:55UT Capturing 100 recordings of the prominence (uepper left) and aligning them into a time-lapse. Unfortunately the seeing was quite varibale and there are some fuzzy frames in the video.

2022-04-03 18:34UT. We are surely seeing an increase in activity lately. Today some nice activity around a sunspot, several filaments and prominences.

2022-04-03 19:10UT. Capturing the belt of activity from the sunspot to the solar limb with two filaments as a 3x1 mosaic with the 3x Barlow and ASI174MM camera. Click on image for full size version.

2022-04-03 18:50UT. A nice prominence looking like a phantasy creature.

2022-04-03 19:01UT. A faint but dynamic looking prominence. I did not take a time laps in this sessions, it might have shown some motion.

2022-02-21 19:05UT Today we had some nice activity on the the Sun. On the lower left there was a very fast prominence seen in the full disk image. Once the setup was changed to the 3x Barlow lens the prominence was no longer visible.

2022-02-21 19:21UT, A surface region which seems to have some flare activity.

2022-02-21 19:44UT There was another active region next to the limb where the full disk image had shown the linear prominence.

2022-02-21 19:28UT Switching the imaging to prominences there were two nice prominences visible.
(The prominences are rotated upright for better viewing)

2022-02-21 19:37UT The other prominence near the bottom of the limb was not captured in best seeing conditions.

2022-02-06 19:12UT Today was nice activity on the Sun. There were surface active regions as well as a large prominence at the limb.

2022-02-06 19:33 - 21:27UT. A time-lapse video of the prominence using the 3x Barlow.

2022-01-09 18:38UT We are starting the 2022 solar observing campaign. The day had clear skies, but only average seeing conditions. We start with a full disk composite of exposures for surface detail and prominences.

2022-01-09 18:55UT to 19:39UT We follow with a few prominences details picked up with the 3x TV Barlow. The seeing really was not good enough to support this magnification.

2022-01-09 19:32UT A surface detail with the 3x Barlow.

Copyright images and processing Gert Gottschalk.
Copyright Bilder und Verarbeitung Gert Gottschalk

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