Table 1.
Recent results of the solar radius at 1 au using different methods and instruments for different wavelength (
).
| Author(s) | Dates | Method (instrument) |
 (nm) |
 STD (km) |
 (km) |
|---|---|---|---|---|---|
| Vaquero et al. (2016) | 1773–2006 | Transit times (several instruments) | – | 695 438  1284 |
– |
| Lamy et al. (2015) | 2010–2015 | Total solar eclipses (photometers) | 540.00 | 696 251  15 |
– |
| Sofia et al. (2013) | 1992–2011 | Prism as angular reference (sextant) | 615.00 | 695 997 
 696 171 |
 15 |
| Emilio et al. (2012) | 2003 and 2006 | Mercury transits (MDI) | 676.78 | 696 345  65 |
– |
| Hauchecorne et al. (2014) | 2012 | Venus transit (HMI) | 617.30 | 696 185  44 |
– |
| Meftah et al. (2014b) | 2012 | Venus transit (SODISM) | 607.10 | 696 156  44 |
 145 |
| Emilio et al. (2015) | 2012 | Venus transit (HMI) | 617.30 | 695 946  15 |
– |
IAU ( )
|
2015 | Transit and helioseismic determinations | – | 695 700 | – |
Notes. Solar radius measurements using the transit-timing method, Vaquero et al. (2016) ground-based measurements made in the Royal Observatory of the Spanish Navy; prism angular reference, Solar Disk Sextant (SDS) balloon flights; planet transits, the Michelson Doppler Imager (MDI) on board the Solar and Heliospheric Observatory, the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory, SODISM on board PICARD; and solar eclipses, ground-based measurements made with solar photometers. STD represents the standard error, which depicts the dispersion of individual observations around the mean or median value. 
is the combined standard uncertainty of the individual standard uncertainties (errors of the uncertainty budget). For example, the typical estimated uncertainty of each SDS measurement (Sofia et al. 2013) is 15 km (0.02 arcsec) with a solar radius that is found to vary by up to 174 km (real variation and/or error) from 1992 to 2011.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.