(Featuring 20 resources)
- About Smoothed Sunspot Number
- The short history of the SSN Smoothed Sunspot Number at Luxorion
[ Hits: 133 | Votes: 0 | Rating: 0.00 ]
- About Sunspot cycles
- Theory to explain solar cycles variability proposed by Jean-Pierre Desmoulins
[ Hits: 1910 | Votes: 7 | Rating: 5.28 ]
- Catania Observatory sunspots data
- Daily sun spots data collected by the Catania astrophysical observatory
[ Hits: 500 | Votes: 0 | Rating: 0.00 ]
- Monitors the space weather parameters essential for HF radio, including SSN/SFI, Ap/Kp, X-ray/Proton flux, and Auroral activity. IonoProbe downloads near-real time satellite and ground station data, stores information for future use and displays it in a user-friendly way.
[ Hits: 1949 | Votes: 11 | Rating: 5.37 ]
- Last 30 Days Solar Data
- Display a table of last 30 days sunspots reports.
Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center
[ Hits: 7385 | Votes: 43 | Rating: 8.30 ]
- Maunder's Butterfly Diagram
- How to understand when a new solar cycle starts.
At the beginning of a new solar cycle, sunspots tend to form at high latitudes, but as the cycle reaches a maximum the spots form at lower latitudes.
[ Hits: 1112 | Votes: 3 | Rating: 8.33 ]
- NASA Sunspot Cycle Predictions
- Nasa MSFC predictions on the behavior of current sunspot cycle.
[ Hits: 7491 | Votes: 36 | Rating: 6.91 ]
- Predicted Sunspot Numbers and radio flux
- Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
[ Hits: 706 | Votes: 4 | Rating: 7.50 ]
- Real time sunspots number
- Space Weather: Real-Time 24hr Effective Sunspot Number
[ Hits: 5871 | Votes: 39 | Rating: 6.07 ]
- RWC Belgium
- World data center for the sunspot index
[ Hits: 1386 | Votes: 11 | Rating: 9.01 ]
- S marks the spot
- Forecasting powerful solar explosions several days in advance now be possible
[ Hits: 1110 | Votes: 0 | Rating: 0.00 ]
- Solar Flare and sunspots
- Understand the connection between solar flares and sunspots.
[ Hits: 1359 | Votes: 2 | Rating: 5.50 ]
- Solar Region Data - SunSpots
- Solar Region Data Current Regions with Sunspots Summary, an useful tool for predictions
[ Hits: 4116 | Votes: 12 | Rating: 4.58 ]
- Spotless days around solar cycle transition
- An interesting perspective of the transition from one solar cycle to another is given by exploring the days with no reported sunspots.
[ Hits: 374 | Votes: 0 | Rating: 0.00 ]
- Sunspot activity by NASA
- Sunspot cycle closely following prediction by Science @ Nasa
[ Hits: 1556 | Votes: 4 | Rating: 5.50 ]
- Sunspot Number
- How sunspot numbers are computed
[ Hits: 1405 | Votes: 3 | Rating: 5.67 ]
- Sunspot numbers explained
- Definition of smoothed sunspot number and R12 index
[ Hits: 934 | Votes: 2 | Rating: 4.00 ]
- Sunspots explained
- History, activity, glossary and modern reseach about suspots
[ Hits: 1171 | Votes: 2 | Rating: 3.50 ]
- The Sunspot Cycle
- Sunspot Numbers, The Butterfly Diagram, the Greenwich sunspot data and sunspot realted infos.
[ Hits: 1897 | Votes: 3 | Rating: 6.67 ]
- Understanding Solar Indices
- By Ken Larson KJ6RZ, a complete guide to understanding soloar indices and values.
[ Hits: 1431 | Votes: 8 | Rating: 8.26 ]