Intensity contrast of solar network and faculae close to the solar limb, observed from two vantage points

Solar Orbiter First Results (Nominal Mission Phase)

Open Access

Fig. 1.

Co-observations of the two instruments. We show I_c (upper row) and B_LOS (lower row) observed by SO/PHI full disc telescope (FDT, left column) and SDO/HMI (right column), on 6 September 2021. The two instruments observed the Sun with 59.45° angular separation. The brick-red outlines on the panels show the regions that we combined for the analysis: I_c from SO/PHI and B_LOS from SDO/HMI within the overlap region of the two instruments, with 0.1 < μ_SO/PHI < 0.4 and μ_SDO/HMI > 0.4.

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