Most impressive one I've had the pleasure of seeing and imaging was this one in October 2014 ....
I would like to study Giant Sunspots, seen with naked eye in the past
- steveward53
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Re: I would like to study Giant Sunspots, seen with naked eye in the past
Steve.
Day by day Solar album ... http://www.astrobin.com/users/steveward53/
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Day by day Solar album ... http://www.astrobin.com/users/steveward53/
Tal 100RS , ED80Pro , Mak180Pro.
HEQ5Pro , EQ3/2 , 14' pier.
Canon 1000D , SPC900NC Mono.
Scopium wedge - Baader ND3.8.
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Re: I would like to study Giant Sunspots, seen with naked eye in the past
Hello,
Here are some references taken from "Solar Astronomy" :
- J.M. VAQUERO, M. VAZQUEZ. The Sun Recorded through History, Scientific data extracted from historical documents. Astrophysics
and Space Science Library. Springer (2009). => this is an outstanding work.
- D. H. CLARK, F. Richard STEPHENSON. An interpretation of pre-telescopic sunspot records from the Orient. Q. Jl Royal Astronomical
Society (1978) 19, 387-410.
- Kevin K.C. YAU, F. Richard STEPHENSON. A revised catalogue of Far Eastern observations of sunspots (165 BC to AD 1918). Q. Jl
Royal Astronomical Society (1988) 29, 175-197.
- F. Richard STEPHENSON, David M WILLIS. The earliest drawing of sunspot. Astronomy & Geophysics, Vol 40, Issue 6 (1999).
- John A. EDDY, F. Richard STEPHENSON, Kevin K.C. YAU. On pre-telescopic sunspot records. Q. Jl Royal Astronomical Society
(1989) 30, 65-73
- A. N. VYSSOTSKY. Astronomical records in the Russian chronicles from 1000 to 1600 A.D. Meddelanden fran Lunds Astronomiska
Observatorium Serie II (1949) 126, 3-52.
- Rainer ARLT, José M VAQUERO. Historical sunspot records. Living Reviews in Solar Physics. Springer (2020).
Hope this helps.
Christian
Here are some references taken from "Solar Astronomy" :
- J.M. VAQUERO, M. VAZQUEZ. The Sun Recorded through History, Scientific data extracted from historical documents. Astrophysics
and Space Science Library. Springer (2009). => this is an outstanding work.
- D. H. CLARK, F. Richard STEPHENSON. An interpretation of pre-telescopic sunspot records from the Orient. Q. Jl Royal Astronomical
Society (1978) 19, 387-410.
- Kevin K.C. YAU, F. Richard STEPHENSON. A revised catalogue of Far Eastern observations of sunspots (165 BC to AD 1918). Q. Jl
Royal Astronomical Society (1988) 29, 175-197.
- F. Richard STEPHENSON, David M WILLIS. The earliest drawing of sunspot. Astronomy & Geophysics, Vol 40, Issue 6 (1999).
- John A. EDDY, F. Richard STEPHENSON, Kevin K.C. YAU. On pre-telescopic sunspot records. Q. Jl Royal Astronomical Society
(1989) 30, 65-73
- A. N. VYSSOTSKY. Astronomical records in the Russian chronicles from 1000 to 1600 A.D. Meddelanden fran Lunds Astronomiska
Observatorium Serie II (1949) 126, 3-52.
- Rainer ARLT, José M VAQUERO. Historical sunspot records. Living Reviews in Solar Physics. Springer (2020).
Hope this helps.
Christian
Christian Viladrich
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
Co-author of "Planetary Astronomy"
http://planetary-astronomy.com/
Editor of "Solar Astronomy"
http://www.astronomiesolaire.com/
- Montana
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Re: I would like to study Giant Sunspots, seen with naked eye in the past
A very warm and sunny welcome
This is quite good also and free to download
https://www.petermeadows.com/html/books.html
Alexandra
This is quite good also and free to download
https://www.petermeadows.com/html/books.html
Alexandra
- DeepSolar64
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Re: I would like to study Giant Sunspots, seen with naked eye in the past
Large naked eye sunspots are a good field of study. I once had a No14 welders glass to view them. Eclipse Glasses work too. I think I have a pair somewhere left over from the 2017 eclipse. I’ll see if I can find them and start using them and recording the results again in my records. Mark recently saw the spot of AR13190 through fog.
James
James
Lunt 8x32 SUNoculars
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Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
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Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
- DeepSolar64
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Re: I would like to study Giant Sunspots, seen with naked eye in the past
I'll have to watch Knowing. It sounds really good. Superflares do happen on other stars. Red dwarfs have them and also some solar type stars but they seem to be more prevalent in G-type stars younger than our Sun. Research is still ongoing on whether they have ever occurred on the Sun. Superflares are magnitudes stronger than the 1859 Carrington Event.
While I have not done any 1x ( Naked eye filtered views ) recently, I have gotten numerous low power 8x solar binocular views. Check those out. I have posted quite a few here on this forum.
James
While I have not done any 1x ( Naked eye filtered views ) recently, I have gotten numerous low power 8x solar binocular views. Check those out. I have posted quite a few here on this forum.
James
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
- DeepSolar64
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Re: I would like to study Giant Sunspots, seen with naked eye in the past
Without the help of angels how would humanity ever survive something like this? A superflare would most likely sterilize the planet or at least kill off 90 percent of all life. It may even strip the Earth of it's atmosphere.
Look up Flare Staron Wikipedia. Most are red dwarfs but their flares are immense.
James
Look up Flare Staron Wikipedia. Most are red dwarfs but their flares are immense.
James
Lunt 8x32 SUNoculars
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "
Orion 70mm Solar Telescope
Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
Cameras: ZWO ASI178MM, PGR Grasshopper, PGR Flea
Lunt, Coronado, TeleVue, Orion and Meade eyepieces
Visual Observer
" Way more fun to see it! "