sun spots
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DX Resources : DX Peditions : 2012 DXpeditions
- S79 Praslin Island DX Pedition
- IK5RUN, I5OYY I5IHE will operate from Praslin Is. Seychelles IOTA AF-024 respectly as S79UN S79YY S79LC Log Online and DX Spots
Operations will start From Sunday 21st October 2012 till Sunday 4th November 2012
[ Hits: 252 | Votes: 0 | Rating: 0 ]
- Propagation eAlert Service
- Automatic e-mail alert of propagation information. Gives current solar flux, Ap, Kp, solar wind information, solar and geomagnetic conditions past and forecast, sunspots, aurora index, and more.
[ Hits: 852 | Votes: 1 | Rating: 10 ]
- Solar Region Data - SunSpots
- Solar Region Data Current Regions with Sunspots Summary, an useful tool for predictions
[ Hits: 4439 | Votes: 13 | Rating: 4.84 ]
- Sunspots explained
- History, activity, glossary and modern reseach about suspots
[ Hits: 1347 | Votes: 2 | Rating: 3.5 ]
- About Sunspot cycles
- Theory to explain solar cycles variability proposed by Jean-Pierre Desmoulins
[ Hits: 2143 | Votes: 7 | Rating: 5.28 ]
- Real time sunspots number
- Space Weather: Real-Time 24hr Effective Sunspot Number
[ Hits: 6267 | Votes: 41 | Rating: 6.09 ]
- 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: 1387 | Votes: 3 | Rating: 8.33 ]
- Daily Sunspots groups
- All daily drawings of the sunspot groups and USSPS produced by INAF - Catania Astrophysical Observatory from 2009 up today are available in this page. The drawings of sunspot groups and pores are maken by a Cooke refractor (150mm/2230 mm) on a 24.5 cm diameter projected image of the Sun.
[ Hits: 80 | Votes: 0 | Rating: 0 ]
- Variable bandwidth cw filter
- As the sunspots return and DX propagation conditions to improve, the age old problem with QRM begins to show up on the amateur bands. Thif filter help you on improving reception
[ Hits: 1150 | Votes: 3 | Rating: 4.33 ]
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