LDN 1780 data. Upper left panel: B band VYSOS image with Calar Alto photometry positions shown as circles, the ISOPHOT 200 μm map area shown as rectangle and the two surface brightness “zero” areas as rectangles; contours are at 30.0, 23.75, 17.5, 11.25, and 5.0 ×10⁻⁹ erg cm⁻² s⁻¹ sr⁻¹ Å⁻¹. Upper right panel: GALEX FUV map; middle right panel: GALEX NUV map; middle left panel: map of H I 21-cm excess emission (line area), adopted from Mattila & Sandell (1979) Fig. 5; bottom left panel: SPEAR/FIMS H₂ fluorescence emission map; bottom right panel: SPEAR/FIMS spectrum at RA = 15h 42m (235. °5), Dec = − 7. °4 (J2000), the brightest H₂ spot in the cloud. In the GALEX images some artefacts of the 1. °25 field edges are seen as black arcs; the contours of the B band image are overplotted in the GALEX and SPEAR/FIMS for reference. Coordinates for the H I 21-cm map are RA and Dec (B1950.0); approximate J2000 coordinates have been added in red. The A_B = 0. m5 extinction contour is shown as a dashed line. For the colour bars of the GALEX images and for the SPEAR/FIMS spectrum the unit is ph s⁻¹ cm⁻² sr⁻¹ Å⁻¹; for the colour bar of the SPEAR/FIMS H₂ image the unit is ph s⁻¹ cm⁻² sr⁻¹ (=LU, line unit).