Elevation 800 m, telescope D = 508 mm, F = 2000 mm. Sky 21.72 mag/sw arcsec, seeing 1-2 arcsec. Hickson 39, galaxy group, Hyd. Ocular 3.5 mm. Component D and an unresolved streak of A-C. On a side of a long triangle of star, brightest to the N. Faint stars E and W also seen. Galaxy next to the star at the triangle vertex to the S not visible.