4. Solar Physics Group (continued)

"We use data from space!"

"We operate solar observing satellites from MSU!"

[What are the merits of observation from space?]

Various Solar Space Missions

* Yohkoh (1991 -- 2001) Japan/US/UK -- 1st CCD on-board, only solar mission early 1990s.     movie
* SOHO (1996 -- present) ESA/US -- L1 mission     image1 movie1 movie2
* TRACE (1998-- 2010) US -- Sun syncronous orbit     movie

* Hinode (2006 -- present) Japan/US/UK -- - Solar Optical Telescope(SOT) : Biggest solar optical telescope in space movie1 movie2
- Extreme Ultraviolet Imaging Spectrometer(EIS)
- X-Ray Telescope(XRT) SolarMonitor.org
XRT Eclipse on Asahi.com

* STEREO (2006 -- present) US -- Twin spacecrafts before and ahead of Earth in orbit image1 image2 image3 Movie1
* SDO (2010 -- present) US -- Geo-stationary satellite, 10+ wavelengths, 4096x4096 every 12 sec     movie
* IRIS (2013 -- present) US -- High resolution spectroscopy in UV range
* Solar Probe(2018? --) US
* Solar-C (2022? --) Japan/US/UK
* Solar-D (20??? --) Japan/US/UK

Our Sun is a variable star!

Sun's activity has a huge impact on our daily life.

Mechanism of Aurora

Aurora(Northern Light) from Bozeman