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Heliophysics Feature Catalogue: Active regions
Active regions of the Sun from Heliophysics Feature Catalogue (HFC). -
SDO GAIA-DEM
GAIA-DEM GAIA-DEM is a database of Differential Emission Measure (DEM) maps. The DEM is a measure of the thermal structure of the coronal plasma, representing the quantity... -
Reconstruction of annual solar irradiance
Solar irradiance measurements are limited, spanning only the last few decades, requiring reconstructions to assess solar variability on longer timescales and its impact on... -
HD 115617 infrared portrait
We present the first high-resolution near-infrared spectroscopic analysis of the solar analog HD 115617 (61 Virginis), complemented by optical spectroscopy, asteroseismology,... -
Models of the solar atmosphere. III.
Semiempirical atmospheric models of solar surface features as observed at moderate resolution are useful tools for understanding the observed solar spectral irradiance... -
Nancay Decameter Array observation database
Decametric radio observation from Nancay decameter array. The Nancay Decameter Array (NDA) at the Station de Radioastronomie de Nancay (SRN) is a phased array of 144 "Teepee"... -
1000-year sunspot series
Solar activity, dominated by the 11-year cyclic evolution, has been observed directly since 1610 CE. Before that, indirect cosmogenic proxy data are used to reconstruct it over... -
BASS2000 Solar Survey Archive
EPNcore table of BASS2000, a Solar survey archive: Images, movies of full Sun from groundbased instruments: Spectroheliographs of Meudon and Coimbra, RadioHeliograph and... -
Type 3 event in Helio
type 3 events of the sun from helio database. -
USET Drawings form
USET Drawing form -
USET Groups
USET Groups Values in the USET sunspot group catalog are derived from the solar drawings obtained by the Uccle Solar Equatorial Table (USET) facility that is located at the... -
USET Drawings
USET links drawings and sunspots -
USET Group form
USET Group form -
USET Drawings
USET sunspot drawing The Uccle Solar Equatorial Table (USET) facility at the Royal Observatory of Belgium has gathered an uninterrupted series of sunspot drawings since year... -
SSA Electric Currents Maps
SSA Electric Currents Maps This service provides electric current maps produced within the IDOC/SSA processing chain. Products are distributed as FITS files with preview PNG... -
HARPS-N 10yrs precise solar radial velocities
The HARPS-N solar telescope has been observing the Sun every possible day since the summer of 2015. We recently released 10 years of these data, which are available online.The... -
Electron impact for OV and OVI levels
Radiative atomic and electron impact excitation data for OV and OVI ions have been calculated. The radiative atomic data have been calculated with the AUTOSTRUCTURE code.... -
Abundances in solar atmosphere
An analysis of the chemical composition of the solar atmosphere is performed using spectrograms of the daylight sky obtained on the ZTS telescope (dispersion 3{AA}/mm,... -
EUV spectrum of solar active region
We present wavelengths and absolute intensities for 269 emission lines from a single active region observed by the Solar EUV Rocket Telescope and Spectrograph (SERTS) on 1989... -
In the Trenches of the solar-stellar connection. VII.
The Wilson-Bappu effect (WBE) is a remarkable correlation between the width of the chromospheric emission core of the CaII 3934{AA} K line and stellar absolute visual magnitude...
