#sunspot

Daniel Fischercosmos4u@scicomm.xyz
2025-06-18

During today's #Bochum #sunset the actually not that big #sunspot (1)4114 was at times enlarged by atmospheric optics, just above the crane and right on the horizon.

Full SunThe spot enlarged by atmospheric optics ...... and again right at the horizon!
Daniel Fischercosmos4u@scicomm.xyz
2025-06-17

The next two #Bochum (Germany) #sunsets, yesterday and today: the #sunspot group (1)4114 remains strong.

Yesterday close-upYesterday widerToday close-upToday wide
2025-06-03

#Cats #CatsInCones #Sunspot

I'm just going to die like this I guess.

No one cares about me. I'll just fade away.

They don't know I'm on life 7.

Sigh.

A striped tabby cat with white paws lies in a sunspot on the back of a sofa. She wears a cone after a procedure. There are gray curtains on either side of her and out the window. You can see a garden. Even her shadow on the seat of the sofa wears a cone.
Trevor Woodtrevorwood
2025-05-19

My phone camera isn't focusing very well, but you can just make out the displayed on my

Daniel Fischercosmos4u@scicomm.xyz
2025-05-17

And the #Bochum #sunset show goes on ... today the #sunspot group (1)4087 was very prominent, and there was #AtmosphericalOptics galore: sometimes it stretched or duplicated the spot vertically while at other times a #GreenSegment 'lifted off' from the Sun's upper limb. More pictures in facebook.com/groups/7888065611 and even more in facebook.com/dan.fischer.393/p

The sunspot prominent while the Sun is compressed by refraction.The Green Segment separated completely, just before fading away.
Trevor Woodtrevorwood
2025-05-17

My latest . A but unfortunately the is behind , but I did see a earlier

Daniel Fischercosmos4u@scicomm.xyz
2025-05-16

The #sunspot group (1)4087 just above a cloud band during the Bochum #sunset today - followed by a pretty pronounced #GreenRim of the Sun, not seen in the days before. Full sequences of May 14, 15 and 16 in facebook.com/dan.fischer.393/p

The spot just before it vanished in the cloudgreen rim sequence of seven pictures
Daniel Fischercosmos4u@scicomm.xyz
2025-05-15

The #sunspot group (1)4087 - the black dot above the trees - during today's #Bochum #sunset ... it was clearer than yesterday so even at the very shortest possible exposure, 1/16,000 sec at f/8 and ISO 100, the Sun was still significantly overexposed. Meanwhile the sunspot itself is taking a nap and produced only an M and a few C flares today but its magnetic structure allegedly keeps having a potential for more.

Crop from max digital zoom picture
Daniel Fischercosmos4u@scicomm.xyz
2025-05-14

Yep, that - the dark splotch near the top of the setting Sun in the unobstructed area - is the #sunspot group (1)4087 ... which produced an X2.7 #flare today despite looking completely harmless in white light: facebook.com/photo/?fbid=10870 and x.com/JAtanackov/status/192259 (pic as usual from #Bochum, Germany; minutes ago).

out of cam - max digital zoom
Louis Marmet has movedredshiftdrift@astrodon.social
2025-05-13

#WilsonEffect #Sunspot #StereoImage
Sunspots approaching the sun's limb appear to be sunken in the middle.

I made a stereo image from two frames taken from the video here 🔗spaceweather.com/archive.php?v

The surface of the sun around the sunspot appears like a five-petal flower slightly risen above the surface, showing the Wilson effect.

The first image is to be looked at with crossed-eyes for the stereo effect to appear.
The second image requires red/cyan glasses.

Stereo image of a large sunspot.  The surface of the sun around the sunspot appears like a five-petal flower slightly risen above the surface.Stereo image image of a sunspot, for red/cyan viewing. The surface of the sun around the sunspot appears like a five-petal flower slightly risen above the surface.
Daniel Fischercosmos4u@scicomm.xyz
2025-05-13

With the big #sunspot gone from the disk little is happening ... so here's the #sunset with a #swift from yesterday. In facebook.com/dan.fischer.393/p more pictures from the last three days, just for the record.

Crop with bird, Sun & crane
2025-05-11

Helloooo, where’s everybody? #sunspot #seestars50

Sun and single spot
Daniel Fischercosmos4u@scicomm.xyz
2025-05-11

The #sunspot group AR (1)4079 right at the limb of the Sun during sunset on 10 May - there wasn't enough 'natural filtering', so even at 1/16,000 second at f/8 and ISO 100 the Sun was burned out, but the group is right there: full sequence (with earlier day time images and the Moon) in facebook.com/dan.fischer.393/p

Overexposed Sun with the spot right at the limb
Daniel Fischercosmos4u@scicomm.xyz
2025-05-09

Sunset with crane and #sunspot group (in Bochum, Germany, on 9 May 2025) - the AR (1)4079 can be seen near the solar limb in the '4:30' position: many more pictures, also of the group during the day on 7, 8 and 9 May, in facebook.com/dan.fischer.393/p

Crop with everything
Daniel Fischercosmos4u@scicomm.xyz
2025-05-06

The big #sunspot group AR (1)4079 on 6 May 2025 over Bochum, Germany: through eclipse glasses in the afternoon - and through three different horizontal gaps in clouds at sunset! The more detailled sequence facebook.com/dan.fischer.393/p also shows green rims at times and a modest sun pillar.

Sun through eclupse glasses around 13:30 UTC.First gap!Second gap!Third gap!
Kevin FreitasKevinFreitas
2025-05-05
A close-up image of the Sun, showing its bright orange surface with several sunspots visible as dark patches.
Kevin FreitasKevinFreitas
2025-05-04

Sunspot group 4079 is looking right at us now. Taken today from West Seattle.

A close-up image of the Sun with a bright orange surface, featuring several sunspots, including a larger dark group in the center.
Daniel Fischercosmos4u@scicomm.xyz
2025-05-04

Cloud gap fun with the big #sunspot group AR (1)4079 - now near the central meridian - today (4 May 2025) in Bochum, Germany: through eclipse glasses in the late afternoon ... and during a super-bright sunset. Rain had cleared the atmosphere so much that in the clear segments even at sunset 1/16'000 second at f/8 and ISO 100 still delivered an overexposed picture! The double umbra is still visible, however, as were nice green effects earlier at the upper rim: more pictures in facebook.com/dan.fischer.393/p

Late afternoon pic through eclipse glassesGreen rim effect at sunset, group just emerging in the other clear gapThe group in the lower cloud gap.
Paul Kerrien :bzh:polker@piaille.fr
2025-05-04

#TacheSolaire #Sunspot 4079 hier soir au couchant, avec un filtre ND1000
très nettement plus large que notre planète Terre

+ d'info à ce sujet à spaceweather.com/archive.php?v

Photo du soleil avec un filtre ND 1000 qui ne laisse passer que 1/1000 de la lumière où l'on perçoit une grosse tache solaire ou sunspot

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