Two Large Sunspots Groups

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  • #609757
    Lyn Smith
    Participant

    Two large sunspot groups have just rotated onto the solar disc around the north-eastern limb, AR2993 and AR2994. Visually both groups are impressive and observations are requested throughout their passage. The groups are also active and strong flares have already been detected. M and X class flares are likely.
    Observations and images are requested by the Solar Section.

    • This topic was modified 2 months, 1 week ago by Lyn Smith.
    Attachments:
    #609782
    Mark Phillips
    Participant

    Managed to capture them in very gusty conditions here in Edinburgh.
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-18 11:29:35 UT (corrected date!)
    90s .ser video
    Best 40% frames

    #609784
    Lyn Smith
    Participant

    Mark, thank you for forwarding your excellent image to the Section which I have now archived. I’m hoping to get an observation myself today once these Scottish clouds permit!

    • This reply was modified 2 months, 1 week ago by Lyn Smith.
    #609792
    Denis Buczynski
    Participant

    Hi Lyn
    Attached is an rather low resolution image of this sunspot group taken this afternoon 20220418 at Tarbatness.
    Best wishes
    Denis

    #609813
    Mark Phillips
    Participant

    Today’s image, seeing not so steady this morning. With yesterday’s image for comparison.
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-19 09:12:49 UT
    90s .ser video
    Best 20% frames

    #609816
    Lyn Smith
    Participant

    Thank you Denis and Mark for your images of AR2993 and AR2994, now archived. Another large sunspots has joined the show over the north-east limb.

    #609817
    Lars Lindhard
    Participant

    Here is an image from Denmark, taken 19. Apr. 13:55 UT with a Canon DSLR through my Lunt 60 mm Ha

    Not the best, but I hope to learn…

    Attachments:
    #609827
    David Strange
    Participant

    Hello Lyn,

    Here is a whole disc image of the Sun taken this afternoon at 14:51h UT 19th April with a Solarscope 70mm

    Cheers
    David

    #609836
    Mark Phillips
    Participant

    Day 3 and amazingly still sunny weather! Interesting to see how the spots are changing.
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-20 08:47:34 UT
    90s .ser video
    Best 20% frames

    #609840
    Lyn Smith
    Participant

    Great response from members sending images of solar activity. All your images are archived. Thank you very much indeed all. Keep them coming!

    #609845
    Peter Mulligan
    Participant

    Hi Lyn here is an image I took this afternoon Wed Apr 20 2022 13:25UT with 102mm Skywatcher startravel refractor and Canon 600D
    Peter

    #609850
    Peter Mulligan
    Participant

    New active area coming into view north of AR2995

    Attachments:
    #609852
    Mark Phillips
    Participant

    Day 4 and cloud dodging to get anything at all. Very gusty and poor seeing.
    The top group shows the most interesting changes, stretching and splitting the umbra.
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-21 12:41:43 UT
    120s .ser video
    Best 40% frames

    #609863
    Mark Phillips
    Participant

    Day 5 and dodging the east coast Scottish Haar now. Very gusty and poor seeing again.
    The changes continue…
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-22 12:05:44 UT
    120s .ser video
    Best 25% frames

    #609869
    Lyn Smith
    Participant

    Thank you again for some fantastic images. Thankfully the weather is playing ball for a change!

    #609901
    Mark Phillips
    Participant

    Day 6. Very windy but amazingly still clear enough to image the Sun. Having to make sure the filter doesn’t blow off!
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-23 11:46:33 UT
    120s .ser video
    Best 25% frames

    #609917
    Mark Phillips
    Participant

    Day 7. How long will the Scottish weather continue to co-operate?
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-24 09:22:42 UT
    120s .ser video
    Best 25% frames

    #609924
    Duncan Hale-Sutton
    Participant

    Hi Lyn, I am a new member of the BAA and thought I would try and contribute to this thread (my first post on the forum). I took this image on the 21st April at 12:07 UT using a Celestron NexStar 102SLT. I used a 25mm eyepiece and a star diagonal to project the image onto white paper. I have rotated it as best I could to give the correct orientation. There are two versions of the same image. One has the sunspot groups annotated. I hope that this is useful to you.

    #609931
    Lyn Smith
    Participant

    Thank you Duncan. Both your images have been added to the Solar Section archive.

    #609944
    Mark Phillips
    Participant

    Day 8. From the forecast for tomorrow I suspect this will be the last day.
    250mm f4.8 Newtonian
    Black polymer filter + R filter
    2022-04-25 09:27:02 UT
    120s .ser video
    Best 25% frames

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