A panorama of the Milky Way on a February winter night over the Badlands of Dinosaur Provincial Park, Alberta. The panorama extends from Canis Major low on the horizon to Perseus at top near the zenith. Orion is at right of centre, with Gemini to the left and Taurus and Auriga above Orion. Mars is the bright reddish object in Taurus aboce similarly coloured but dimmer Aldebaran, itself amid the Hyades star cluster. The blue Pleiades is at upper right. Sirius is the bright star at bottom. The image takes in the complete Winter Hexagon (aka the Winter Circle) of bright stars. The Milky Way is peppered with red nebulas, notably the large curving arc of Barnard's Loop, a suspected supernova remnant in Orion. The lowest stretches of the Loop get lost in the bright red airglow. The bright Orion Nebula shines in Orion's Sword, while east (left) of Orion is the round Rosette Nebula in Monoceros. At top is the finger-like California Nebula in Perseus. Several Messier star clusters also show up along the Milky Way. The cyan-tinted Comet C/2022 E3 (ZTF) is above centre amid the Taurus Dark Clouds. Bands of red and yellow-green airglow tint the sky toward the horizon, as well as the glows from distant towns, notably Medicine Hat at centre. Some light haze added natural star glows — I did not use a starglow diffusion filter this night. But I did shoot the sky segments though an URTH broadband light pollution reduction filter, to help make the nebulas pop out more. This is a stitch of 6 segments (using Adobe Camera Raw) for the sky with segments taken at 15° intervals, each 1 minute with the tracker motor on and at ISO 1600. The resulting sky panorama is blended with a stack of 4 untracked images for the ground, each 2 minutes at ISO 800, taken about 40 minutes after the sky segments, when the waning gibbous Moon was rising to light the landscape with a warm side lighting. So this is a time blend. But the camera was not moved between image sets. All were with the Canon RF28-70mm lens at f/2.8 and 28mm, on the filter-modified Canon R camera from AstroGear. This was on the Star Adventurer tracker with an Alyn Wallace V-plate to keep the camera level and aid framing the panorama. Orton glow effects added to the ground with Luminar Neo, and to the sky with Radiant Photo and f/64 Diffusion actions. Star spikes added with AstronomyTools actions.
A labelled panorama of the Milky Way on a February winter night over the Badlands of Dinosaur Provincial Park, Alberta. The panorama extends from Canis Major low on the horizon to Perseus at top near the zenith. Orion is at right of centre, with Gemini to the left and Taurus and Auriga above Orion. Mars is the bright reddish object in Taurus aboce similarly coloured but dimmer Aldebaran, itself amid the Hyades star cluster. The blue Pleiades is at upper right. Sirius is the bright star at bottom. The image takes in the complete Winter Hexagon (aka the Winter Circle) of bright stars. The Milky Way is peppered with red nebulas, notably the large curving arc of Barnard's Loop, a suspected supernova remnant in Orion. The lowest stretches of the Loop get lost in the bright red airglow. The bright Orion Nebula shines in Orion's Sword, while east (left) of Orion is the round Rosette Nebula in Monoceros. At top is the finger-like California Nebula in Perseus. Several Messier star clusters also show up along the Milky Way. The cyan-tinted Comet C/2022 E3 (ZTF) is above centre amid the Taurus Dark Clouds. Bands of red and yellow-green airglow tint the sky toward the horizon, as well as the glows from distant towns, notably Medicine Hat at centre. Some light haze added natural star glows — I did not use a starglow diffusion filter this night. But I did shoot the sky segments though an URTH broadband light pollution reduction filter, to help make the nebulas pop out more. This is a stitch of 6 segments (using Adobe Camera Raw) for the sky with segments taken at 15° intervals, each 1 minute with the tracker motor on and at ISO 1600. The resulting sky panorama is blended with a stack of 4 untracked images for the ground, each 2 minutes at ISO 800, taken about 40 minutes after the sky segments, when the waning gibbous Moon was rising to light the landscape with a warm side lighting. So this is a time blend. But the camera was not moved between image sets. All were with the Canon RF28-70mm lens at f/2.8 and 28mm, on the filter-modified Canon R camera from AstroGear. This was on the Star Adventurer tracker with an Alyn Wallace V-plate to keep the camera level and aid framing the panorama. Orton glow effects added to the ground with Luminar Neo, and to the sky with Radiant Photo and f/64 Diffusion actions. Star spikes added with AstronomyTools actions. A clean unlabelled version is available.
This is the nebula rich region in the constellation of Monoceros the Unicorn with the dark Cone Nebula (left of centre) and the small V-shaped and bright Hubble’s Variable Nebula at bottom, a reflection nebula that varies in form and brightness. Above the Cone Nebula is the triangular Christmas Tree Cluster, NGC 2264, here upside down as the bright blue star 15 Mon is the base of the tree. The large region of nebulosity is Sharpless 2-273. The V-shaped dark nebula above centre is LDN 1603. Near 15 Mon is a blue reflection nebula. Another blue reflection nebula IC 2169 and associated star cluster Collinder 95 is at left — I framed the field to contain this nebula. Other bits of reflection nebulosity surround it - clockwise: NGC 2245, NGC 2247 and IC 446 above the main nebula. The rich faint cluster near centre is Trumpler 5. This is a blend of 8 x 5-minute exposures at ISO 800 unfiltered with 6 x 8-minute exposures at ISO 1600 shot through an Optolong L-Enhance dual-band nebula enhancement filter (it lets through only Oxygen III blue-green and Hydrogen-alpha red to really enhance the nebulosity). All exposures with the Canon EOS Ra mirrorless camera through the SharpStar HNT150 Hyperbolic Newtonian Astrograph at f/2.8, from home on a very clear moonless night January 26, 2020. All stacked, aligned and blended in Photoshop 2020.
