A mosaic of the Sword and Belt region of Orion the Hunter, showing the diverse array of colourful nebulas in the area, including: curving Barnard’s Loop, the Horsehead Nebula below the left star of the Belt, Alnitak, and the Orion Nebula itself as the bright region in the Sword. Also in the field are numerous faint blue reflection nebulas. The reflection nebula M78 is at top embedded in a dark nebula, and the pinkish NGC 2024 or Flame Nebula is above Alnitak. The bright orange-red star at far right is W Orionis, a type M4 long-period variable star. This is a 4-panel mosaic with each panel made of 5 x 2.5-minute exposures with the 135mm Canon L-series telephoto wide open at f/2 and the filter-modified Canon 5D MkII at ISO 1250. The night was somewhat hazy which added natural glows on the stars. No filter was employed here. The camera was on the iOptron Sky-Tracker for tracking but no guiding. Shot from outside Quailway Cottage near Portal, Arizona, Dec 7, 2015. All stacking and stitching performed in Photoshop CC 2015. Stacking done with median combine stack mode to eliminate geosat trails through the fields.
The constellation of Orion photographed in deep red Hydrogen-Alpha light and rendered in monochrome. The filtered view brings out the very faint nebulosity in and around Orion, most invisible to the eye. The Belt of Orion is just below centre, with the region of the Horsehead Nebula below the left star of the Belt, Alnitak. Below it is the very bright Orion Nebula. Surrounding the left side of Orion is the arc of Barnard’s Loop, now thought to be a supernova remnant. The large circular nebula around Orion’s head is the Lambda Orionis Nebula or Sharpless 2-264. At left in Monoceros is the bright Rosette Nebula, NGC 2237, and above it the fainter nebulosity Sharpless 2-273 around the Cone Nebula. The small patch at top is Lower’s Nebula, Sharpless 2-261. Betelgeuse, at a record dim magnitude visually at this time, here looks more normal in brightness, at least brighter than Bellatrix at right, as seen here in red light, as Betelgeuse is a red giant star. I shot this using an Astronomik 12nm clip-in H-alpha filter on the Canon EOS Ra camera, a factory-modified red-sensitive mirrorless camera designed to pick up more of this deep red H-a nebulosity than can a normal camera. As the original image is simply deep red, it is best rendered as a monochrome image. However, this could be combined with colour images to make an enhanced full-colour image. This is a stack of 9 x 8-minute exposures at f/2.2 with the Sigma 50mm lens and Canon EOS Ra at ISO 1600, on the iOptron Sky Guider Pro tracker. Taken before moonrise on February 12, 2020. Stacked, registered and blended with Photoshop 2020. Nik Silver EFX selenium and Luminar Flex Soft Glow filters added for artistic effect, to add a soft blue glow to the image, not red. The temperature was about -15° C this night with a fine chill wind!
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.
