View allAll Photos Tagged alphacentauri
O Cruzeiro do Sul e um pouco da sombra da Via Lactea vistos , da Fazenda do Engenho, Santuário do Caraça.
***
The Crux Constellation and a bit shadow of the Milky Way seen of Engenho farm, in Caraça's Sanctuary.
Santuário do Caraça
Caraça
Minas Gerais
Panorama. Photos were done during a Uyuni stargazing tour. Elevation 3,650 m or 12,000 ft. The salt flat view even during a day is amazing, but at night it is fantastic.
With 10,582 km^2, more than 10 billion tons of salt and containing up to 70% of the world’s lithium reserves, Salar de Uyuni is the world’s largest salt flat, a vast salt plain near the crest of the Andes in southwest Bolivia.
On the photo you can see Southern hemisphere sky, Crux constellation, Alpha and Beta Centauri, Milky Way, Galactic Center, red and green Airglow, Hexagonal formations of the salt flat.
Finally, my dream happens and I was able to see south sky – Southern Cross, Alpha Centauri, sky South Pole. This photo was done during my trip to Peru, Central Andes, near small Andean indian village Chinchero, located in Inca Sacred valley between Cusco and Machu Picchu. Chinchero is believed to be the mythical birthplace of the rainbow (and as far as photo it is also place of birthplace of Milky Way). Altitude of this place is about 3,762 m or 12,339 ft. above the sea level. At such altitude the sky absolutely amazing! Even light from the small village was not able block light from night sky, star light looks brighter then lamp light.
I did this photo after our Inca trail, when we drive from Machu Picchu to Cusco. Our women decided to shopping in Chinchero and because it was already at night, I had time to do some photos during this shopping time.
Canon EOS 60Da, EF16-35mm f/2.8L II USM lens, ISO-4000, f/2.8, 30 seconds. Peru is on South hemisphere and on the photo you can find the south pole (3 1/2 times the distance between Gacrux and Acrux stars). Alpha and Betta Centauri also are visible on this photo. Alpha Centauri is the closest star to the Sun, just 4.37 light-years.
Chinchero Cusco Peru. Altitude about about 3,762 m or 12,339 ft.
Canon 60Da, EF16-35mm f/2.8L II USM lens, ISO-4000, f/2.8, 30 seconds.
After all that social distancing, busy weekdays & weekends at work, then seemingly endless days of clouds and rain, last Saturday night offered a chance to get out for some nightscape photos. The Moon was due to set just after midnight, but I left home at around 7:00 pm to give myself time to enjoy a long drive and scout some new locations for future shoots.
The sky was cloudless for the first half of my 290 km (180 mi) round-trip expedition, allowing me to get a dozen or so photos of the Moonlit countryside around Berry, New South Wales, Australia. I then drove to the spot I had in mind for my post-Moonset Milky Way photos, parked my car and slept for about an hour. Waking a couple of minutes before midnight, I was unimpressed to see that a canopy of high, thin clouds had moved in from the west.
Sticking to my photographic philosophy that "every shot is practice for the next one", I decided to snap away anyhow. Fog and thin clouds do wonders for enhancing the colours and brightness of the stars in photos, and today's post is an example of just how much difference that airborne moisture makes. Featured in the image are the stars Alpha and Beta Centauri, aka "The Pointers", plus Crux, the "Southern Cross". The clouds are evident in the top half of the shot, but I don't think they ruined my night.
This single-frame photo was captured using my Canon EOS 6D Mk II camera fitted with a Yongnuo 50mm f/1.4 lens @ f/2.8, using an exposure time of 6.0 seconds @ ISO 6400.
a little smile from Desi - don't let it fool you tho...this girl has attitude, as i type she's hanging on the cage bars foofing Lucina next door
Lucy and sis Desi are out of Finnish lines which the NFRS imported recently, both these little girls are topaz but Desi's rex coat makes her colouring look quite different to Lucy
The moon set too late last night for me to stay out and get photos of the dark and starry heavens, so I settled for photographing the stars against the moonlit sky. Seeing that there was an electrical storm out over the Tasman Sea, I stopped in at the lookout at Stanwell Tops, New South Wales, Australia. The lookout there on Bald Hill gives fantastic views at any time of day.
Although shot at close to midnight, my photo displays a blue sky which at first glance makes it seem as if I took it during the day. The stars are the giveaway that it was night-time, though. The Southern Cross is high up near the top-centre of the image, just above the Coal Sack Nebula. The globular star cluster Omega Centauri is close to the left-hand edge of the scene, about 1/3 from the top. The moon’s light did a great job of revealing the clouds, and the flash from the lightning has revealed the rain falling from the thunderclouds onto the ocean.
For this single-frame photo, I used my Canon EOS 6D Mk II camera, a Rokinon 24mm lens @ f/2.2, with a 15-second exposure @ ISO 1600.
www.br.de/mediathek/video/alpha-centauri-11122018-stossen...
alpha-Centauri | 11.12.2018
Stoßen Galaxien zusammen?
Meshell Ndegeocello / Andromeda & the Milky Way
Here is the Poster I made for Alpha Centauri. Be on the look out this could pop up any where! Also if you haven't heard Alpha Centauri check them out www.myspace.com/thealphacentauri
And this poster got flyer of the week in Citypages.
blogs.citypages.com/gimmenoise/2009/04/flyer_of_the_we_43... ...
There was supposed to be an observable aurora australis, last night, with a Kp Index of 0.33 to 2.0 and a Bz Index of -8.0 to -6.0, but I barely saw a reddish glow in the sky . . .
My second objective; I used 4 different programs to process the .NEF raw image file, BUT some programs will not render the image the same pixel dimensions, so I had to discard two and stacked the others, then Subtracted three black .NEFs, tweaked Saturation.
Why go to this effort?
Hmmm. Recently, I read that Alpha Centauri is yellow" and Beta Centauri is blue, so I wanted to capture that as accurately as I could conceive, using common digital shit with my $$$ Nikon Noct-Nikkor 58mm f/1.2AiS, designed for Astro.
I achieved that, but the 2000 ISO gave me more noise than I care for and it is hard to differentiate between Noise, Hot Pixels and faint stars. There should be some algorithm in some inexpensive or free software to achieve that level of filtration, Mac and Windows.
So, I play until I get something that I believe is true and correct.
If I can get the two stars to render bluand yellow, then the rest should be correct.
A gentle reminder about copyright and intellectual property-
Ⓒ Cassidy Photography (All images in this Flickr portfolio)
Alpha Centauri & Beta Cetauri
The Milky Way in Centaurus
===============================
Image exposure: 32 x 12s = 6.4 min
Settings: f/3.5, ISO 1000
Image Size: 24° x 17° (approx)
Image date: 2024-08-07
===============================
===============================
A close-up look at the Milky Way Galaxy in the night sky from Blayney, Central West, NSW, Australia.
The closest star system to the Earth is the famous Alpha Centauri group. Located in the constellation of Centaurus (The Centaur), at a distance of 4.3 light-years, this system is made up of the binary formed by the stars Alpha Centauri A and Alpha Centauri B, plus the faint red dwarf Alpha Centauri C, also known as Proxima Centauri.
This NASA/ESA Hubble Space Telescope has given us this stunning view of the bright Alpha Centauri A (on the left) and Alpha Centauri B (on the right), shining like huge cosmic headlamps in the dark. The image was captured by the Wide-Field and Planetary Camera 2 (WFPC2). WFPC2 was Hubble’s most used instrument for the first 13 years of the space telescope’s life, being replaced in 2009 by Wide-Field Camera 3 (WFC3) during Servicing Mission 4. This portrait of Alpha Centauri was produced by observations carried out at optical and near-infrared wavelengths.
Compared to the sun, Alpha Centauri A is of the same stellar type, G2, and slightly bigger, while Alpha Centauri B, a K1-type star, is slightly smaller. They orbit a common center of gravity once every 80 years, with a minimum distance of about 11 times the distance between Earth and the sun. Because these two stars are, together with their sibling Proxima Centauri, the closest to Earth, they are among the best studied by astronomers. And they are also among the prime targets in the hunt for habitable exoplanets.
Using the European Space Organization's HARPS instrument, astronomers already discovered a planet orbiting Alpha Centauri B. Then on Aug. 24, 2016, astronomers announced the intriguing discovery of a nearly Earth-sized planet in the habitable zone orbiting the star Proxima Centauri
Image credit: ESA/NASA
A close-up look at the Milky Way Galaxy in the night sky from Blayney, Central West, NSW, Australia.
Katoomba Valley. Taken on my trip to the Blue Mountains last weekend west of Sydney, Australia. In this part of the sky we can clearly see what Ferdinad Magellan noticed in the sky when circumnavigating the globe (1519-1522) now known as the 'Large Magellanic Cloud' but really it is a Dwarf Galaxy said to be orbiting our own Milky Way Galaxy.
Above the black patch in the middle of the Milky Way (know as the coalsack) are two bright stars, the brighter one above is Alpha Centauri a binary system 4 light years from earth and said to be the closest neighbouring star to our solar system.
The green hue below on the horizon is an optical phenomena known as airglow.
my lovely soppy boy left me a few days ago, he had just had his 2nd birthday, he leaves behind his brother Grisha & friend Sosigenes
lovely eyes - she reminds me of her mum Hestia www.flickr.com/photos/rattyfied/sets/72157607253738872/
Travelers to the southern hemisphere should make an effort to see the Southern Cross (Crux), an asterism used by navigators in the absence of a south pole star. As a circumpolar constellation, Crux is usually above the horizon all night long. See embedded notes for identifications.
Near it is Alpha Centauri, a triple star system whose minor member Proxima Centauri is the closest star to the sun (4.246 light-years).
Not having a tripod, I balanced my camera on an object and used the hat trick (cover lens with a hat when opening the shutter, then remove it quickly).
she is an agouti rex, but the lack of guard hairs and her age have made almost all grey with just a little gold highlight on her head
Avatar is a 2009 American science fiction epic film written and directed by James Cameron and starring Sam Worthington, Zoe Saldana, Sigourney Weaver, Michelle Rodriguez and Stephen Lang. The film is set in the year 2154 on Pandora, a moon in the Alpha Centauri star system. Humans are engaged in mining Pandora's reserves of a precious mineral, while the Na'vi - a race of indigenous humanoids - resist the colonists' expansion, which threatens the continued existence of the Na'vi and the Pandoran ecosystem. The film's title refers to the genetically engineered bodies used by the film's characters to interact with the Na'vi.
The Rosette Nebula is a vast star-forming region, 100 light-years across, that lies at one end of a giant molecular cloud the constellation Monoceros. The nebula is estimated to contain around 10,000 solar masses. The nebula is located about 5,000 light-years away from Earth. Intense radiation from the young stars inside a cluster in the nebula causes the gasses to glow. The background image is from the Digitized Sky Survey, while the inset is a small portion of the nebula as photographed by the Hubble Space Telescope. Dark clouds of hydrogen gas laced with dust are silhouetted across the image. The colours come from the presence of hydrogen, oxygen, and nitrogen.
[Image description: A square, ground-based observation of the entire Rosette Nebula. A large, diffuse donut shape primarily composed of light brown and gray gas and dust extends to the edges. Several bright blue stars are at its clearer center. There are innumerable small stars throughout the background, most of which are blue. A tiny box at center-left connects to a zoomed-in image of this region at bottom left from the Hubble Space Telescope. The Hubble image shows a dark gray V that extends from just below top left all the way down to the lower right corner and back up toward the top right. It looks like thick, irregular smoke. Behind the dark gray on the left side there are arced lines in light orange and yellow. The background at top left is hazier, the blues covered in semi-transparent orange wisps, making a few sections appear green. In the bottom right, the background is bluer. There are a few bright red and purple stars scattered along the right half.]
Credits: NASA, ESA, STScI, DSS; CC BY 4.0
The Milky Way in the southern hemisphere sky from Canis Major at top right to Centaurus at bottom left, from Sirius to Alpha Centauri. At centre is the huge Gum Nebula emission nebula bubble. At left of centre is the Carina Nebula. At bottom is the Large Magellanic Cloud with the star Canopus above it. Crux, the Southern Cross, is at lower left.
This is a stack of 5 x 3-minute tracked exposures with the filter-modified Canon 5D MkII camera at ISO 2000 and 14mm Rokinon SP lens at f/2.5. No filter was employed. On the iOptron Sky-Tracker, from Tibuc Gardens Cottage, Coonabarabran, NSW, Australia. Re-processed in 2024.
Grisha was 2 a fortnight ago, but as his brother was so poorly & needed lots of tlc the celebration was postponed
As someone who has spent his entire life in São Paulo and its Bortle 8/9 sky; this weekend I had the opportunity to visit Brotas and imagine what it was like to see a Bortle 4 sky? It's not even halfway to a perfect sky yet, but what a beautiful thing to be able to observe "our home", the Milky Way.
Xiaomi Redmi 11S ISO5000 25s f/1,89 5,89mm EV0.
Edited with MS Picture Manager.
When we reached the Dales Gorge campsite for a few nights, we saw the sign "Astro Session". I signed up immediately.
Phill is a super nice guy, our two-hour lesson under the Starry Sky of Karijini National Parks (WA) was informative and fun, and also very cold:)
Here he explains us how to find the southern sky direction and uses a powerful laser for it. You are welcome to guess which chocolate bar he distributed to us at the end of the lesson :-)
Rokinon 7,5mm fisheye.
So much to see in the southern night skies. Here's another night shot from Terrigal, New South Wales.
The Carina Nebula is the bright fuzzy patch at the top centre, above the Southern Cross in the dead centre of the shot. At the bottom are the two really bright stars Alpha Centauri and Rigil Kentaurus, pointing towards the cross.
At the extreme top right of the shot is the wonderful Large Magellanic Cloud.
The wonders of the southern hemisphere sky rising over the Tasman Sea at Cape Conran, on the Gippsland Coast of Victoria. Australia, on March 31, 2017.
The head and neck of the Dark Emu is rising from the ocean. At top is the Carina Nebula area, below is Crux, the Southern Cross, and below it are the twin Pointer Stars of Alpha and Beta Centauri. At top right is the Large Magellanic Cloud, and below it is the Small Magellanic Cloud. Left (north) of the Crux and Pointers is the fuzzy spot of Omega Centauri globular cluster. At far right is the star Achernar. At centre is the area of the South Celestial Pole.
The dim red glow in the sky due south at centre might be aurora australis but is likely airglow.
This is a stack of 4 x 40-second exposures, untracked, for the ground, mean combined to smooth noise, and one 40-second exposure for the sky, all at f/2.5 with the 14mm Rokinon lens and Canon 6D at ISO 3200.
This panorama takes in a roughly 180° sweep of the Milky Way:
— from Sagittarius, Scorpius and the Galactic Centre at left,
— to Orion, Gemini and near the galactic anti-centre at right.
At far left we are looking toward the centre of our galaxy; at far right we are looking toward its outer edge, from our location in one of the outer spiral arms of the Milky Way, in a spur off the Cygnus Arm. At centre we are looking into the adjacent Carina and Centaurus arms.
The panorama frames the full extent of southernmost reaches of the Milky Way that can be seen only from, or best from, southern latitudes, in the tropics or the southern hemisphere.
The southern extent of the Milky Way includes the constellations of (from L to R) Lupus, Centaurus, Crux, Carina, Vela and Puppis across the central area of the panorama, a region rich in red emission nebulas and dark lanes of interstellar dust. The largest nebula is the vast pink Gum Nebula in Vela and Puppis near centre, a huge bubble of glowing hydrogen similar to the arc of Barnard's Loop around Orion at right.
But the Milky Way is dotted with many other bright emission nebulas, such as (from L to R): the Lagoon, Cat's Paw (both at far left), the Running Chicken, Eta Carinae (both near centre), the Seagull, the Rosette (both at far right), and the Angel Fish in the head of Orion. At top left are the stars of the head of Scorpius and the colourful nebulas around Antares and Rho Ophiuchi.
The dark dust lanes at left make up the aboriginal Dark Emu constellation, with her head being the Coal Sack near the Southern Cross left of centre, and her neck being the curving lane of dust that splits the Milky Way in Centaurus at left. At far left are the angled lanes that make up the Dark Horse in the Milky Way.
Of note are the various colours of the Milky Way, varying from blue (at right) to, to redder (at centre), to yellow (at left), the latter from absorption of short wavelengths by the greater amount of dust toward the centre of the galaxy, and also from the presence of more older, yellow Population II stars toward the galactic core.
The two brightest stars in the panorama are also the two brightest stars in the night sky: Canopus at the bottom edge and Sirius at right. Procyon and the pair of Castor and Pollux are at upper right.
The Southern Cross and the Pointer stars of Alpha and Beta Centauri are left of centre, while the False Cross stars are just below centre to the left of the Gum Nebula. The white "star" above the Southern Cross and Pointers is the large globular cluster Omega Centauri. The blue stars at left above the Milky Way belong to the Scorpius-Centaurus OB Association of young, hot stars.
Technical:
This is a panorama of 11 segments, each a stack of 8 to 12 exposures, of 2 or 3 minutes each, with the Canon RF28-70mm lens at f/2.2 or f/2.8 (I varied the settings during the shoot) and at 35mm focal length, and with the camera turned in portrait orientation across the Milky Way. I used the red-sensitive Canon Ra camera at ISO 800. The lens had an URTH 95mm Night broadband light pollution reduction filter to help contrast. A ballhead with a rotation axis above the ball facilitated moving the camera from segment to segment along the Milky Way with a single motion, keeping the galactic equator centered.
I shot the segments on one long night in March 2024, shooting from the Warrumbungles Mountain Motel near Coonabarabran, NSW, Australia, at the OzSky star party. Pre-dawn clouds rolling in, plus dawn itself, and an annoying nearby tree prevented more exposures up the Milky Way to the north at left, to frame more of the galactic centre area. Ditto on sky glow at right in the early evening preventing more exposures north of (below in the Oz sky) Orion into Auriga, a region quite low from this latitude of 32° South. In fact, the sky glow in the upper right corner is likely Zodiacal Light. Extending the panorama requires exposures at another time and/or site and latitude.
Segments were processed initially in Adobe Camera Raw, stacked and aligned in Photoshop, and then stitched into the panorama with PTGui, which did a better job at blending segments than Photoshop's Photomerge command. Applications of luminosity-masked Curves, the Photokemi Nebula Filter action, and the Nik Collection Color EFX Detail Extractor filter all helped bring out the nebulas. I also applied a mild Soft Focus filter to add a touch of glow for artistic effect! I did not use a starglow diffusion filter on the lens, nor any narrowband filter such as an H-Alpha filter.
The original is 21,100 by 6,500 pixels.
È conosciuta anche come strada dei Quattro parchi visto che attraversa, o comunque lambisce, il parco delle Madonie, il parco dei Nebrodi, il parco fluviale dell'Alcantara ed il parco dell'Etna. Un'altra denominazione in uso nel passato era strada Termini - Taormina, richiamando le due principali località vicine ai due capi del percorso.
Sul tratto in provincia di Palermo si snodava l'itinerario della Targa Florio.
From WIKIPEDIA
I'm facinated with the concept of constellations in negative space. See a labeled overlay and image details at
astronomy.robpettengill.org/blog180605.html
This shot of the Milky Way rising over Cusco from Urubamba featues la Llama stretching from Scorpius to the eyes of alpha and beta Centauri. The Milky Way showing the eyes of the llama (alpha and beta Centauri) from Urubamba Peru. Sony a6300 with Rokinon 12mm f/2 lens shot at f/2.8 for 30 sec at ISO 800 on a Vixen Polarie Tracker. Single image processed in Pixinsight and Photoshop.
The saltwater crocodile, also known as estuarine or Indo-Pacific crocodile, (Crocodylus porosus) is the largest of all living reptiles. It is found in suitable habitats in Northern Australia, the eastern coast of India and parts of Southeast Asia. Its typical hunting technique is known as the "death roll": it grabs onto the animal and rolls powerfully. This throws any struggling large animal off balance, making it easier to drag it into the water.
Circular Star trails caused by Earth's rotation around the Southern Celestial Pole.
Some of the brighter stars in this photo include the Southern Cross (Crux), Hadar and Rigel Kentaurus (better known as Alpha Centauri).
Martin
-
[Home Page] [Photography Showcase] [My Free Photo App]
[Flickr Profile] [Facebook] [Twitter] [My Science & Physics Page]
This is a Hubble Space Telescope photo of a small portion of the Rosette Nebula, a huge star-forming region spanning 100 light-years across and located 5,200 light-years away. Hubble zooms into a small portion of the nebula that is only 4 light-years across (the approximate distance between our Sun and the neighbouring Alpha Centauri star system.) Dark clouds of hydrogen gas laced with dust are silhouetted across the image. The clouds are being eroded and shaped by the seething radiation from the cluster of larger stars in the center of the nebula (NGC 2440). An embedded star seen at the tip of a dark cloud in the upper right portion of the image is launching jets of plasma that are crashing into the cold cloud around it. The resulting shock wave is causing a red glow. The colours come from the presence of hydrogen, oxygen, and nitrogen.
[Image description: A tiny portion of the Rosette Nebula. Very dark gray material shaped like a V extends from just below top left all the way down to the lower right corner and back up toward the top right. It looks like thick smoke that has billowed out irregularly, thicker along the line from top left to bottom right, and looser on the piece that goes toward the top right. Behind the dark gray on the left side, from the bottom left to top center, there is dust that looks like arced claw marks that appears in light orange and yellow. The background at top left is hazier and some blues are covered in semi-transparent orange wisps, which makes sections take on green hues. In the bottom right, the background is bluer. There are a few bright red and purple stars scattered along the right half, most toward the bottom. The largest star is at right-center, just at the edge. It is red and has four diffraction spikes.]
Credits: NASA, ESA, STScI; CC BY 4.0
The Southern Cross (at top) and Pointer Stars (below) rising over the Tasman Sea from the Green Cape Lighthouse, in New South Wales Australia. This is a stack of 4 x 45 second exposures for the ground and clouds (to smooth noise) and a single 45-second exposure for the stars. With the 14mm f/2.5 Rokinon lens, and Canon 6D at ISO 6400.
The Dark Emu from aboriginal sky lore rising in the east, on a late March evening in Australia. The Dark Emu is a “constellation” made of dark lanes in the Milky Way. Here, his head and beak are at centre as the dark Coal Sack beside the Southern Cross. The Emu’s neck extends down along the Milky Way through Centaurus and into Scorpius, which is just rising here. Antares and the head of Scoripius are at botttom left above the gum trees, with bright Mars to the left of Antares. The glow at upper left is the Gegenschein.
This scene encompasses much of the splendours of the southern hemisphere sky, including the Large Magellanic Cloud at right, and the Carina Nebula, the red patch right of top centre. At centre is the Southern Cross, or Crux. Below it are the paired stars of Alpha and Beta Centauri.
The foreground is illuminated only by starlight, though when I shot this the last quarter Moon was about to rise and so was beginning to light the sky a deep blue.
This is a stack of 5 x 2 minute tracked exposures at f/3.2 with the 15mm full-frame fish-eye lens, and filter-modified Canon 5D MkII at ISO 3200 for the sky, plus a single untracked exposure at ISO 800 for 8 minutes at f/2.8 for the ground to eliminate blurring. I shot the ground shot immediately after the last sky shot, by simply turning off the tracker’s motor.
Where the two images, tracked sky and untracked ground, meet there are blurred silhouettes of the trees. I used the iOptron SkyTracker.