Name: Solar Activity Data Base of National Astronomical Observatory Abbreviation: NAOJ Solar Data Institution: Solar Physics Division, National Astronomical ObservatoryContents: This database comprises the data on solar activity obtained at the National Astronomical Observatory (NAOJ) * Sunspot relative numbers, sunspot positions (1938-, character files, in preparation) * Coronal green line intensity (1950-, character files) * Active region magnetic fields (1982-, digital images) * He 10830 Angstrom heliograms (1990-, digital images) * H-alpha full-disk filtergrams (1991-, digital images)
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Contact Person: Takashi Sakurai Address: Solar Physics Division, National Astronomical Observatory, 2-21-1 Ohsawa, Mitaka, Tokyo 181, Japan TEL: 81-422-34-3716 FAX: 81-422-34-3700 E-mail: sakurai[AT]spot.mtk.nao.ac.jp