September Moonrise

September Moonrise, now at the Dallas Museum of Art, represents one of Hassam's relatively rare nocturnal subjects, capturing the dramatic moment when the full harvest moon rises over the Isles of Shoals or the New England coast. Night and twilight subjects were less common in his oeuvre than sunny daylight scenes, making this 1900 canvas an unusual excursion into the atmospheric challenges of moonlit landscape. September moonrises—large, golden, and dramatic against the darkening sky—were a natural subject for a painter sensitive to the full range of atmospheric conditions a single location could offer.

The moonrise is rendered through the contrast between the warm golden disc and the deepening blue-grey of the evening sky, Hassam employing a more subdued and restricted palette than his daylight work. The landscape below is silhouetted rather than illuminated in detail, its forms simplified into broad masses against the luminous sky.