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Au détour de la petite fête organisée entre amis, voici qu'un drôle d'énergumène, connu de tous les convives, arborait une curieuse mais fascinante chemise !
De quoi attiser mon envie de graphisme !
Désolé de n'avoir pas pu résister... :o)
Happy New Year !
Bonne année et bonne santé à tous !
Comet C/2022 E3 (ZTF) in the constellation of Taurus on the night of Feb 10, 2023. The comet is the cyan-coloured glow above bright orange Mars at upper left.
The framing takes in the major star clusters in Taurus: At upper right is the Pleiades star cluster, while the Hyades star cluster with reddish Aldebaran is at bottom. Other NGC catalogue star clusters are in this framing: NGC 1647 to the left of the Hyades and NGC 1746 to the left of the comet and Mars. Mars appears to be at the tip of a dark lane of interstellar dust in the Taurus Dark Clouds.
This is a stack of 10 x 2-minute exposures at ISO 1600 with Canon R5 and with the RF70-200mm lens at f/4 and 89mm. Tracked but unguided on the AP Mach1 mount, and taken from home. A mild diffusion effect added with Radiant Photo plug-in. Faint nebulosity brought out with luminosity masked curves from Lumenzia.
As the sun was setting, the light caught the water-drops sitting on a fine layer of spider webbing that surrounds this cactus.
The Pleiades (also known as the Seven Sisters, the Little Hen, or by the acronym M45 in Charles Messier's catalog) is an open cluster visible in the constellation of Taurus. This cluster is quite close (440 light years) and has several stars visible to the naked eye. In urban environments, only four or five of the brightest stars can be seen, in a darker place even twelve. All the components are surrounded by light reflection nebulae, observable especially in long exposure photographs taken with telescopes of considerable size.
It is noteworthy that the stars of the Pleiades are really close to each other, have a common origin and are linked by gravity.
Given their distance, the stars visible between the Pleiades are much hotter than normal, and this is reflected in their color: they are blue or white giants; the cluster actually has hundreds of other stars, many of which are too far away and cold to be seen with the naked eye. The Pleiades are a young cluster, with an estimated age of about 100 million years and a predicted life of only another 250 million years, since the stars are too far apart.
Because of their brightness and proximity to each other, the brightest stars of the Pleiades have been known since ancient times: they are mentioned, for example, by Homer and Ptolemy. The Nebra disk, a bronze artifact from 1600 BC found in the summer of 1999 in Nebra, Germany, is one of the oldest known representations of the cosmos: in this disk the Pleiades are the third clearly distinguishable celestial object after the Sun and the Moon.
Since it was discovered that stars are celestial bodies similar to the Sun, it was hypothesized that some were somehow linked to each other. Thanks to the study of proper motion and the scientific determination of the distances of the stars, it became clear that the Pleiades are indeed gravitationally linked and that they have a common origin.
The Pleiades cluster is located north of the celestial equator, therefore in the Northern Hemisphere; its declination is about 24°N, so it is close enough to the celestial equator to be observable from all populated areas of the Earth, up to the Antarctic Circle. North of the Arctic Circle they appear circumpolar, while one degree north of the Tropic of Cancer they can be observed at the zenith. In the Northern Hemisphere the cluster dominates the evening sky from mid-autumn to early spring, in the Southern Hemisphere it is typical of the summer sky.
9 hours of shooting with a color camera, l-pro filter and apochromatic triplet
The Lockheed Constellation ("Connie") is a four-engined airliner built by Lockheed Corporation between 1943 and 1958. Museum of Flight, Seattle.
Messier 53 (also known as M53 or NGC 5024) is a globular cluster in the Coma Berenices constellation and is one of the more outlying globular clusters. It is roughly 60,000 light-years away from our solar system.
Observation data (J2000 epoch)
Class: V
Constellation: Coma Berenices
Right ascension: 13h 12m 55.25s
Declination: +18° 10′ 05.4″
Distance: 58,000 ly
Apparent magnitude (V): 7.6
Apparent dimensions (V): 13’
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO ASI2600MC camera running at 0F, 135x60 seconds guided exposures, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: May 15, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Winter Constellations in Finland: Orion in the Center between the trees, Taurus with Aldebaran (middle right) and the Pleiades (Open cluster on the right) above the white tree) Procyon (left) of Canis Minor, Gemini top left (Athena at the left of the tall tree), Castor and Pollux are outside the frame of this image.
Gravitationally Lensed Galaxy Cluster
By ESA/HUBBLE MAY 7, 2023
TOPICS: Astronomy Astrophysics "European Space Agency" "Gravitational Lensing" "Hubble Space Telescope"
The Hubble Space Telescope has captured an image of a massive galaxy cluster, eMACS J1823.1+7822, that offers insights into dark matter distribution and acts as a natural telescope to study distant objects. Credit: ESA/Hubble & NASA, H. Ebeling
This Hubble Space Telescope image reveals a massive galaxy cluster, eMACS J1823.1+7822, located nine billion light-years away in the constellation Draco. Gravitational lensing caused by the cluster’s mass distorts background galaxies into streaks and arcs of light, offering insights into dark matter distribution.
A vast galaxy cluster lurks in the center of this image from the Hubble Space Telescope.
Like a submerged sea monster causing waves on the surface, this cosmic leviathan can be identified by the distortions in spacetime around it. The mass of the cluster has caused the images of background galaxies to be gravitationally lensed; the galaxy cluster has caused a sufficient curvature of spacetime to bend the path of light and cause background galaxies to appear distorted into streaks and arcs of light. A host of other galaxies can be seen surrounding the cluster, and a handful of foreground stars with tell-tale diffraction spikes are scattered throughout the image.
royal south australian yacht squadron and outer harbor container terminal, lefevre peninsula, south australia
Salt Lake City, UT
Constellation Owl is a five story high psychedelic owl overlooking the Gallivan Center. There are constellations incorporated into the owl's body while it sits on some colorful crystals.
The mural was painted by Vexta, an Australian stencil artist.
The small constellation of Dephinus the dolphin just off the Milky Way. The field is similar to what a pair of large binoculars would show. I shot this from home Nov. 25, 2019.
This is a stack of 6 x 2-minute unguided exposures with the 200mm Canon telephoto at f/2.8 and stock Canon 6D MkII at ISO 1600. An additional exposure taken through the Kenko Softon A filter adds the star glows. All were with the camera on the Fornax LighTrack II tracker.
My image of Saturn showing the storm which was visible near the northern polar region.
Image was taken on 5 June 2018 @ 14:30UTC when Saturn was 1,455,552,000km (9.12AU) away from earth, shining at magnitude -0.1.
Saturn was located in the constellation "Sagittarius".
This image was taken using a 8" SCT at a focal length of 6764mm/f33.3 with a 1/4" OSC CCD.
My First attempt to Night Photography!!!
On the way to YLNP, around Cheyenne WY by midnight
Saw this beautful band of stars, dared to go off highway a mile or so away from light and clickd few. Never thought u could really see this, takes time to adjust your eyes in dark..will continue exploring more, thanks for viewing!!