A 300° panorama of an aurora from the Churchill Northern Studies Centre, in Churchill, Manitoba on February 26, 2022. This aurora was at Kp1 level (very low) and appeared only as featureless grey arcs to the eye. But the camera picked up unusual red colouration, and even some yellow-oranges, along with the more normal greens. The reds are odd for such a low-level aurora as the oxygen reds typically appear only when the aurora gets very active and energetic. The display did brighten more later this night when it took on the more classic green arcs, with occasional lower fringes of nitrogen pinks. But at the start of the night the reds dominated. Orion is at far left (southwest) while Leo is at far right (east). The winter Milky Way arches over the Studies Centre. This is a panorama of 6 segments with the TTArtisan 11mm full-frame fish-eye lens at f/2.8 for 30 seconds each with the Canon Ra at ISO 3200. Stitched with PTGui.
A portrait of the constellation of Orion taken in monochrome in the deep red light of the hydrogen-alpha wavelength using a narrowband filter, to emphasize the vast clouds of interstellar gas within and around Orion. The Orion Nebula is the bright object at lower centre; the Horsehead Nebula below the Belt of Orion is near centre; the bright object at upper left is the Rosette Nebula in Monoceros. The large circular glow at top around the head of Orion is Sharpless 2-264, the Lambda Orionis nebula. The curving arc on our left side of Orion is Sharpless 2-276, aka Barnard's Loop. This is a stack of 24 x 4-minute exposures with the red-sensitive Canon Ra camera at ISO 1600 shooting through the Canon RF28-70mm lens at 50mm and wide open at f/2. The filter was the Astronomik 12nm Ha clip-in filter. This was taken Feb 10, 2022 in bright moonlight with the waxing gibbous Moon just off frame at top, creating some challenging gradients.
