spectrograph - guestbook

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Spectrography

Reminders
The solar spectrum
Sunspots spectra
Atlas of solar spectrum

Spectroheliography

Introduction
What can we observe with SHG ?
Images processing

Realizations

Theoretical Elements
SHG with a 115/900
SHG with 90/1300 refractor (p.1 )
SHG with 90/1300 refractor (p.2 )
Newton 192/950
Dobson 80/400 'Babydob'
Ultra-simple solar spectrum
Misc. electronic layouts
Misc. optical layouts

Solar archives

Year 2008
Year 2007
Year 2006
Year 2005
Year 2004
Year 2003
Year 2002
Year 2001
Year 2000
Year 1999
Year 1998
Videos
Synoptic maps
Maunder's Diagram
Cycle 23 in images
Venus Transit 2004

Articles - Notes

Eclipse - 1999, n°16
L'astronomie - may 2000
L'astronomie - apr. 2001
L'astronomie - jun 2002
Solar differential rotation
Communications
Is 0656 the return of 0649 ?
Astrosolar D5 testing
Transmittance of some filters

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Spectrography
Spectroheliography
Images from amateurs
Pro images databases
About the Sun
Some suppliers

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