71437605 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437602 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437598 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437594 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437592 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.13900618 - The galactic centre area in Sagittarius (at left) and Scorpius (at right) low in the south on a summer night at Dinosaur Provincial Park, Alberta. This was June 30/July 1, 2022. Being just 10 days after summer solstice and at latitude +50° North, the sky even to the south still has a blue tint from all-night twilight. I made no attempt to neutralize the sky colouration. In addition, some haze from smoke discoloured the sky and reduced transparency and contrast low in the sky.13898290 - The summer Milky Way over and reflected in the relatively calm water of Pyramid Lake in Jasper National Park, on a mid-October night. The Jasper Sky Tram adds the lights on Whistler Peak. Bands of airglow tint the sky with red. Lights from the Jasper townsite, still mostly unshielded sodium vapour lights as of 2022, add the skyglow at left. Altair is the bright star at top. The red Lagoon Nebula is just setting behind the mountain skyline. The slight wind rippled the water enough to prevent a perfect reflection.71437601 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437597 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.13900291 - The northern summer Milky Way setting over the mountains of Waterton Lakes National Park, Alberta, Canada, with warm golden lighting supplied by the rising waning Moon (behind the camera) illuminating the landscape and sky in a “moonstrike” effect. Taken on September 21, 2019, in frames taken as part of a time-lapse. Faint bands of red airglow tint the sky, though the blue sky colour is from the moonlight. This is taken during the lunar “golden hour.”13899261 - Comet Leonard (C/2021 A1) on the morning of December 10, 2021, with a 200mm telephoto lens for a field of view of 10° x 6.8°. The tail appears to be about 3.5° long here. Taken about 6:30 am MST with the comet as high as it would be, though the sky is already beginning to brighten with the blue of dawn twilight. The distinctive cyan tint of a comet's coma is prominent.13898623 - A composite of the Perseid meteor shower, on the peak night, Aug 11/12, 2016, looking northeast to the radiant point in Perseus left of centre, with the Pleiades and Hyades clusters in Taurus rising. There are 33 meteors here. Note the fairly consistent green to red tint of each meteor streak. A couple of streaks look more white and might be flaring satellites though their trajectory matches where a Perseid should be.13898154 - Comet Leonard (C/2021 A1) on the morning of December 10, 2021, with a 135mm telephoto lens for a field of view of 10° x 15°. The tail appears to be about 4° long here. Taken about 5:45 am MST. The distinctive cyan tint of a comet's coma is prominent. The comet was in Serpens at the time.13898127 - Our group of Learning Vacations tourists enjoy the start of a fine display of Northern Lights at the Churchill Northern Studies Centre, March 6, 2016. As curtains appear to the east, another array of curtains shines to the west behind them with a strong purple tint lighting the sky and ground. The Andromeda Galaxy sits amid the curtains.71437604 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437599 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.13900496 - An arc of modest aurora borealis (Northern Lights) across the northern horizon, above a prairie meadow in the light of a bright waxing gibbous Moon, a day before Full. This was just after midnight on July 11/12, 2022 when the sky was also still lit by summer twilight colours, and with a weak display of noctilucent clouds also visible low in the northwest at left. The auroral curtains exhibit the usual green band and rays, but also upper altitude reds and purples and a faint blue tint at the very tops where the aurora is lit by the Sun. The aurora was never bright this night (Kp Index was 3 or 13900221 - A subtle and pastel aurora borealis (Northern Lights) in the northeast, above a prairie meadow at "Lone Tree Hill". The foreground and sky are lit by a bright waxing gibbous Moon, a day before Full, shining in the south. This was just after midnight on July 11/12, 2022. The auroral curtains exhibit the usual green band and rays, though with shades of green visible, perhaps from hydrogen-beta proton emission as well as oxygen electron emission, but also upper altitude reds and purples and a faint blue tint at the very tops where the aurora is lit by the Sun. The aurora was never bright this nig71437606 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437603 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437596 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.13899933 - The Zodiacal Light at dawn on an autumn morning, October 7, 2022. Orion, Sirius, and the winter Milky Way are at right; Mars is the bright object at top right. The Beehive star cluster is at centre embedded in the Light. Leo is rising at left. Bands of airglow tint the sky.71437600 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.71437593 - The Grand Canyon as seen from the South Rim in Arizona. The large gorge was eroded over millions of years by weather and the Colorado river that still runs through it. The reddish tint it has is due to the iron contained in the rock's minerals that oxide.13998697 - A display of aurora borealis in a curving arc of parallel curtains and swirls in the northeastern sky on a Kp5 night,February 22,2023. The curtains display a yellowing tint toward the horizon. This was from the snowmobile trail down to the frozen ponds on the north side of the Churchill Northern Studies Centre in Churchill,Manitoba.13823055 - Detail of the flowering wild apple tree, Malus sylvestris, with white flowers with a pink tint. Abruzzo, Italy, Europe70351632 - Rotweinwanderweg through vineyards near Altenwegshof, Autumnal tint, Ahr, Eifel, Rhineland-Palatinate, Germany, Europe70264386 - Autumnal tint near St. Ulrich, Farmhouse, Markgräflerland, Black Forest, Baden-Württemberg, Germany, Europe70366540 - View from the Limberg at forest and river Rhine, Autumnal tint, Kaiserstuhl, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe70366552 - View from the Limberg at forest and river Rhine, Autumnal tint, Kaiserstuhl, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe70351631 - Rotweinwanderweg through vineyards near Altenwegshof, Autumnal tint, Ahr, Eifel, Rhineland-Palatinate, Germany, Europe70351633 - Rotweinwanderweg through vineyards near Altenwegshof, Autumnal tint, Ahr, Eifel, Rhineland-Palatinate, Germany, Europe70264384 - Autumnal tint near Todtnau - Präg, Black Forest, Baden-Württemberg, Germany, Europe70366553 - View from the Limberg at forest and river Rhine, Autumnal tint, Kaiserstuhl, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe70366544 - View from the Limberg at forest and river Rhine, Autumnal tint, Kaiserstuhl, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe70366542 - View from the Limberg at forest and river Rhine, Autumnal tint, Kaiserstuhl, Vogesen, Vosges, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe70351634 - Rotweinwanderweg through vineyards near Altenwegshof, Autumnal tint, Ahr, Eifel, Rhineland-Palatinate, Germany, Europe70366545 - View from the Limberg at forest and river Rhine, Autumnal tint, Kaiserstuhl, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe70366541 - View from the Limberg at forest and Vosges, Autumnal tint, Kaiserstuhl, Oberrheinische Tiefebene, Baden Wuerttemberg, Germany, Europe71028280 - Wildflowers with Blue Tint71146698 - The summer Milky Way over the Milk River Valley and sandstone formations of Writing-on-Stone Provincial park, in southern Alberta. On the horizon are the volcanic Sweetgrass Hills in Montana. The red tint at top is from an aurora active that night and the
