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Sunspot Drawings
1 drawing/day, available since 1944. Side reversed!
» Archive...
» About drawings...
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Sunspot relative Number
Wolf-Number derived from the daily sunspot drawings.
» Archive...
» About sunspot numbers...
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Photoheliograms in Continuum
Kanzelhöhe Photosphere Digital Camera (KPDC) with a 4 MPixel Pulnix CCD.
Image acquisition rate 1 image/5 min, frame selected out of 10 frames/sec., available since July 2007.
- Synoptic: normal contrast (left)
- Normalized: high contrast with center-to-limb variation compensated (right)
» Archive...
» About KPDC observations...
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Photoheliograms in Continuum - Photosphere Cam (PhoKa)
3 exposures/day on 13x18 cm2 B/W-film, available from 1989 to May 2007. Digital
copies are made in the next few years.These observations are used for the »
Debrecen Photoheliographic Data.
- Synoptic: normal contrast (left)
- Normalized: high contrast with center-to-limb variation compensated (right)
» Archive...
» About continuum observations...
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Photoheliograms in Hα
High Resolution Hα Imaging System with a 4 MPixel Pulnix CCD.
Image acquisition rate 1 image/min, available since January 2008, before - since mid 2000 a Apogee KX-4 was in operation.
- Synoptic: normal contrast (left)
- Normalized: high contrast with center-to-limb variation compensated (right)
This instrument is part of the » Global Hα Network
» Archive...
» About Hα observations...
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Photoheliograms in Hα
on 35 mm B/W-film. Before 2000 a system with a film box was in operation in place of the current
High Resolution Hα Imaging System. Image acquisition rate was1 image/4 min. Digital copies have been made
of the complete time series (1973 to 2000) with a 1 megapixel CCD camera.
Several times per day over-exposed images were taken to visualise the prominences.
- Synoptic: normal contrast (left)
- Normalized: high contrast with center-to-limb variation compensated (right)
» Archive...
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Photoheliograms in CaIIK;
High Cadence CaIIK Imaging System with a 4 MPixel
Pulnix CCD. Image acquisition rate 1 image/min, frame selected out of 7 frames/sec.,
available since 2010. Standard archives with 1 image/min.
- Synoptic: normal contrast (left)
- Normalized: high contrast with center-to-limb variation compensated (right)
» Archive...
» About CaII K observations...
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