
How many days will there be without sunspots during 2009?
Background: The sun is currently experiencing a solar minimum. This means that the sun is very quiet and has spent many days without sunspots. As of April 7, the sun has been blank for 12 consecutive days. The total for 2009 was 84 days (87%) and 595 days since the current minimum began in 2004.
73% of the days in 2008 were quiet. That is the highest number since 1913 when 85% of days were quiet. A few other 100-year records were set during the 1913 minimum. The sun had 92 consecutive spotless days and there were 1019 spotless days total.
According to solar physicist Dean Pesnell, sunspot counts could pick up "by the end of the year."
Additional information:
http://www.spaceweather.com/glossary/spotlessdays.htm?PHPSESSID=cdl2j3nvb2gtqk4a85undvsfa1
http://www.nasa.gov/topics/solarsystem/features/solar_minimum09.html
73% of the days in 2008 were quiet. That is the highest number since 1913 when 85% of days were quiet. A few other 100-year records were set during the 1913 minimum. The sun had 92 consecutive spotless days and there were 1019 spotless days total.
According to solar physicist Dean Pesnell, sunspot counts could pick up "by the end of the year."
Additional information:
http://www.spaceweather.com/glossary/spotlessdays.htm?PHPSESSID=cdl2j3nvb2gtqk4a85undvsfa1
http://www.nasa.gov/topics/solarsystem/features/solar_minimum09.html
Settlement details:As reported by www.spaceweather.com or a major mainstream news source.
| Below 220 |
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| Between 220 and 249 |
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| Between 250 and 279 |
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| Between 280 and 299 |
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| Between 300 and 309 |
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| Between 310 and 319 |
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| Between 320 and 329 |
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| 330 or more |
|
Question suspends in 5 weeks
- Activity: H$105,445 |
- Predictions: 230 |
Comments: 14
Suspend date: Thu 31st Dec 11:59pm PST (5 weeks to go)
Initial likelihoods: Below 220: 5%, Between 220 and 249: 10%, Between 250 and 279: 10%, Between 280 and 299: 15%, Between 300 and 309: 20%, Between 310 and 319: 30%, Between 320 and 329: 5%, 330 or more: 5%
Action history:
Suspend date: Thu 31st Dec 11:59pm PST (5 weeks to go) details
Predictions (230)
Comments (14)
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http://www.foxnews.com/story/0,2933,530275,00.html
162 days were spotless (77%) - the last 20 days were spotless
http://www.spaceweather.com/
Current Stretch: 33 days
2009 total: 175 days (78%)
Current Stretch: 43 days
2009 total: 185 days (79%)
Current Stretch: 11 days
2009 total: 204 days (80%)
Updated 12 Sept 2009
Current Stretch: 0 days
2009 total: 212 days (80%)
Updated 23 Sept 2009
Current Stretch: 14 days
2009 total: 226 days (79%)
Updated 15 Oct 2009
Current Stretch: 0 days
2009 total: 232 days (79%)
Updated 23 Oct 2009
Spotless Days
Current Stretch: 2 days
2009 total: 234 days (77%)
Updated 01 Nov 2009
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