View allAll Photos Tagged multiband
Les araçaris multibandes vivent en petits groupes de quelques individus. Ils circulent généralement en volant en file indienne, les uns derrière les autres. Celui-ci est photographié en Equateur à partir d'une tour au dessus de la canopée.
Many-banded Aracari live in small groups of a few individuals. They usually fly in single file, one behind the other. This one is photographed in Ecuador from a tower above the canopy.
This is one of my favorite underwater images. It is quite challenging to get the lighting right, the deeper you go and to prevent overexposure on white subjects. These shy fish are endemic to the Hawaii Islands. They are usually found in pairs at depths up to 100 feet/30.48 meters.
Credit: NASA/JPL-Caltech/M. Povich (Penn State Univ.)
A dragon-shaped cloud of dust seems to fly out from a bright explosion in this infrared light image from the Spitzer Space Telescope.
These views have revealed that this dark cloud, called M17 SWex, is forming stars at a furious rate but has not yet spawned the most massive type of stars, known as O stars. Such stellar behemoths, however, light up the M17 nebula at the image's center and have also blown a huge "bubble" in the gas and dust that forms M17's luminous left edge.
The stars and gas in this region are now passing though the Sagittarius spiral arm of the Milky Way (moving from right to left), touching off a galactic "domino effect." The youngest episode of star formation is playing out inside the dusty dragon as it enters the spiral arm. Over time this area will flare up like the bright M17 nebula, glowing in the light of young, massive stars. The remnants of an older burst of star formation blew the bubble to the left.
This is a three-color composite that shows infrared observations from two Spitzer instruments. Blue represents 3.6-micron light and green shows light of 8 microns, both captured by Spitzer's infrared array camera. Red is 24-micron light detected by Spitzer's multiband imaging photometer.
Provider: Spitzer Space Telescope
Image Source: www.spitzer.caltech.edu/images/3189-sig10-009a-The-Evolut...
Curator: Spitzer Space Telescope, Pasadena, CA, USA
Image Use Policy: Public Domain
Nigaard Glacier (Norwegian: Nigaardsbreen) is an arm of the larger Jostedal Glacier (Jostedalsbreen), the largest glacier of Northern Europe. In common with virtually all glaciers in Europe, the front edge of the ice is retreating at an alarming rate. Since this photo was taken (/2008), the glacier edge has moved many hundreds of meters backwards. A visible demonstration of the ongoing climate cfhanges.
Multi-band spectral image composite taken with a full-spectrum modified Nikon D200 and the Coastal Optics 60mm f/4 APO lens.
UV: Baader U filter, coded blue
Visible: Green channel from image taken with a Baader UV/IR-Cut filter
NIR:B+W 093 (Wratten 87C), coded red
Taken in early spring (May) thus the foot lake Nigaardsvatn is still ice-covered.
ESA's 35-metre radio antenna in Malargüe, Argentina, has had a major refurbishment. Extenstive modifications made will now allow the ESTRACK network to support future mission like Euclid, launching in 2022, and to transfer data at much higher rates.
Upgrades to the ESA Malargüe station, and similar upgrades carried out in the Cebreros station located in Spain in 2017, make a big difference to deep space missions.
Currently missions like Gaia are able to send back data at a channel rate of 10Mb/s. Euclid will send back data at a rate of 149Mb/s – a similar increase in speed as we have experienced in our internet browsing in the last 10 years.
Euclid, which will orbit at the Lagrange point L2, will be fitted with the 26 GHz band radio giving it a higher bandwidth for transferring data to and from Earth, significantly increasing the scientific information returned over time.
The refurbishment of Cebreros and Malargue stations, will allow ESA deep space antennas to receive broadband signals at 26GHz as well as the conventional X-band frequency.
Highlights of the upgrade
The core of the Malargüe Ground Station antenna optical system is the beamwaveguide. This is a set of mirrors that redirect the signal from the spacecraft to the antenna feeding system.
The central mirror in the set plays a key role in the upgrade. By rotating the mirror in the centre, you can redirect the signal to different receivers with different frequencies.
When the central mirror is rotated to the deep space position, operators will be able to simultaneously use X-band and Ka-band waves – the kind of signal sent by deep space missions like BepiColombo.
When the central mirror is rotated to the near earth position, a newly developed multiband feed system will enable simultaneous X-band and K-band communications.
There is a placeholder position for exclusive communication at X-band using the new 80 kW high power amplifier. The 80kW amplifier is currently being developed and is expected to be deployed to ESTRACK by 2024.
In addition, a new generation of low-maintenance cryogenic amplifiers for improved performance have been installed, as has the latest portable satellite simulator – which will be compatible with Euclid’s high data rates.
Challenges to upgrade
This upgrade has provided unique challenges for the teams charged with seeing it through. The mirrors must be very precisely aligned, with a maximum of 3.5 millidegrees of angular tolerance. To achieve this precision, photogrammetry was used.
ESTRACK antennas also support a very wide range of flying missions, with a high operational load. To minimise the impact on operations, the complete refurbishment had to be completed in only five weeks.
Teamwork is key
The success of the upgrade relied on the dedication and expertise of each individual and their capability to work together effectively as a team.
Coordination between more than twenty people carrying out the upgrades has been paramount – and it has been achieved by keeping the team motivation high and ensuring communication and information flowed among the five industrial partner companies who worked together on the refurbishment.
Credit: ESA / Filippo Concaro
A scene of jagged fiery peaks, turbulent magma-like clouds and fiercely hot bursts of bright light. Although this may be reminiscent of a raging fire or the heart of a volcano, it actually shows a cold cosmic clump of gas, dust and stars.
The subject of this image, from ESA’s Herschel Space Observatory and NASA’s Spitzer Space Telescope, is the irregularly shaped Large Magellanic Cloud (LMC), one of the nearest galaxies to our own.
The dark, orange-tinted patches throughout the galaxy are plumes of murky dust. The hints of deep red and green mark areas of particularly cool dust, with white and blue tones highlighting hot regions of furious star formation. These pale pockets of gas are heated by the very stars they are creating, which push hot winds out into their surroundings.
To make this scene even more uninviting, the LMC is also home to a giant cosmic spider – the Tarantula Nebula. This hot cloud of gas and dust is easily visible as the brightest region in this image, located towards the lower left of the frame. This nebula is very well studied, for example by the NASA/ESA Hubble Space Telescope, which last year produced a stunning infrared mosaic showing the celestial creepy-crawly in great detail.
This is one of the reasons astronomers like to explore the LMC; it is close enough to us that we can pick out individual nebulas – including the Tarantula – and study how stars form, evolve and die in other galaxies. The LMC is populated by a mix of old and young stars, many of which are lined up along the galaxy’s central ‘bar’, which slants from the bottom left to the top right of this image.
ESA’s Herschel and NASA’s Spitzer are both space telescopes that explore the Universe in infrared light. The LMC looks quite different – and much more serene – in visible light, instead resembling a scattering of pale stars with occasional plumes of pink and purple.
The data making up this image are from Herschel’s Spectral and Photometric Imaging Receiver (SPIRE) and Photoconductor Array Camera and Spectrometer (PACS), and Spitzer’s Multiband Imaging Photometer (MIPS).
This image was previously published by NASA/JPL.
Credit: ESA/NASA/JPL-Caltech/STScI
Astronomical images often look like works of art. This picture of one of our nearest neighbouring galaxies, the Small Magellanic Cloud, is certainly no exception!
The scene is actually a collaboration between two cosmic artists — ESA’s Herschel space observatory and NASA’s Spitzer space telescope. The image is reminiscent of an artistic stipple or pointillist painting, with lots of small, distinct dots coming together to create a striking larger-scale view.
The colours within this image provide information about the temperature of the dust mixed with the gas throughout the galaxy. The slight green tint stretching towards the left of the frame and the red hue of the main body of the galaxy are from the Herschel observations, which highlight cold material, down to a chilly –260 degrees Celsius .
The brighter patches of blue were captured by Spitzer. These regions are made up of ‘warmer’ —about –150 degrees Celsius — gas and dust, and within some of these areas new stars are being born. These newborn stars in turn warm up their surroundings, resulting in intense clumps of heated gas and dust within the galaxy.
These clumps show up brightly in this image, tracing the shape of the galaxy clearly — the SMC is made up of a central ‘bar’ of star formation, visible on the right hand side, and then a more extended ‘wing’, stretching out towards the left of the frame.
Overall, the Small Magellanic Cloud is about 1/20th of the size of the Milky Way. It can be seen shining in the night sky of the southern hemisphere, and its brightest regions are easily visible to the naked eye. It is a satellite galaxy of our own — it orbits around the Milky Way along with its bigger companion, the Large Magellanic Cloud. These two galaxies have been extensively studied because of their proximity to us; astronomers can observe them relatively easily to explore how star formation and galactic evolution works in galaxies other than our own.
The data in this image are from Herschel’s Spectral and Photometric Imaging Receiver (SPIRE), Photodetector Array Camera and Spectrometer (PACS), and Spitzer’s Multiband Imaging Photometer (MIPS).
This image was previously published by NASA/JPL.
Credit: ESA/NASA/JPL-Caltech/STScI
Here is a link to a RadioMuseum.org article on Nordmende radios in the United States in the 1960s/1970s. www.radiomuseum.org/forum/nordmende_transistor_radios_in_...
This spectacular image was captured by JWST’s Near Infrared Camera, or NIRCam.
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Journey with us through Webb’s breathtaking view of the Pillars of Creation, where scores of newly formed stars glisten like dewdrops among floating, translucent columns of gas and dust.
If this majestic landscape looks familiar, you may recognize the original. Hubble first captured the Pillars of Creation in 1995 and revisited it in 2014. Webb’s latest view was taken in near-infrared light, which is invisible to our eyes. Seeing in infrared allows Webb to pierce through the dust and reveal stars galore. (Find a side-by-side comparison of the Pillars of Creation as seen by Hubble and Webb also on our Flickr!)
Why go back to where we’ve been before? Webb helps us identify far more precise counts of newborn stars, along with the quantities of gas and dust. This will deepen our understanding of how stars form and burst out of these dusty clouds over millions of years. Read more: www.nasa.gov/feature/goddard/2022/nasa-s-webb-takes-star-...
Image Credit: NASA, ESA, CSA, STScI
[Image description: This Webb image of the “Pillars of Creation” has layers of semi-opaque, rusty red gas and dust that start at the bottom left and go toward the top right. There are three prominent pillars rising toward the top right. The left pillar is the largest and widest. The peaks of the second and third pillars are set off in darker shades of brown and have red outlines. Peeking through the layers of gas and dust is the background, set in shades of blue and littered with tiny yellow and blue stars. Many of the tips of the pillars appear tinged with what looks like lava. There are also tiny red dots at the edges of the pillars, which are newly born stars.]
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NASA Honors University of Arizona Regents Professors, Alumna for Space Exploration, Astronomy.
University of Arizona Regents Professors Marcia and George Rieke and UArizona alumna Jane Rigby have been recognized with NASA Distinguished Public Service Medals for their accomplishments in astronomy and key contributions to the James Webb Space Telescope.
University Communications
University of Arizona Regents Professors Marcia and George Rieke have each been recognized with NASA Distinguished Public Service Medals for their contributions to the field of astronomy and their key roles in the development of cutting-edge instruments for NASA’s James Webb Space Telescope, or JWST.
The medals, awarded this month, are the highest distinction the agency bestows upon nongovernmental personnel.
In addition to the Riekes, UArizona alumna Jane Rigby, who serves as the operations project scientist for JWST, was honored with the NASA Exceptional Scientific Achievement Medal for her scientific contributions and leadership. Rigby, who graduated with a doctorate in astronomy from UArizona in 2006, has played a pivotal role in the successful transition of JWST from commissioning to routine science observations. Her work at NASA’s Goddard Space Flight Center has been crucial to ensuring the seamless operation of the space observatory.
Marcia Rieke – as the principal investigator who led the development of JWST’s Near Infrared Camera, or NIRCam – has demonstrated unparalleled dedication and leadership, according to her nomination for the medal. The NIRCam project, considered the most challenging instrument development effort in the JWST program, proved to be 10 times more complex than initially anticipated.
In his capacity as the science team lead for JWST’s Mid-Infrared Instrument, or MIRI, George Rieke has been instrumental in facilitating international collaboration among 10 European countries and NASA’s Jet Propulsion Laboratory in Pasadena, California.
The star-forming region known as the Pillars of Creation was imaged by the James Webb Space Telescope
The infrared instruments on the James Webb Space Telescope enable the space observatory to peer through dense dust that visible light can’t penetrate. This image shows the iconic “Pillars of Creation” – a region where new stars are forming within dense clouds of gas and dust.
NASA, ESA, CSA, STScI; Joseph DePasquale (STScI), Anton M. Koekemoer (STScI), Alyssa Pagan (STScI)
Over the course of five decades with the UArizona Lunar and Planetary Laboratory and Steward Observatory, the Riekes, a husband-and-wife research team, helped the field of infrared astronomy – once a niche endeavor fraught with extreme technical challenges – flourish into a powerful discipline that has allowed scientists to see the universe in ways that were once deemed impossible.
Marcia Rieke’s unwavering focus, diligence, and hands-on approach in the face of formidable technical and programmatic challenges set a remarkable example for her peers, according to the award notification from NASA. In addition to her work on NIRCam, she has made significant contributions as the deputy principal investigator for the Near Infrared Camera and Multi-Object Spectrometer, or NICMOS, on the Hubble Space Telescope and as a co-investigator on the Multiband Imaging Photometer instrument, or MIPS, on the Spitzer Infrared Space Telescope. Her influential role in advancing the field of infrared astronomy is widely recognized.
With JWST, Marcia Rieke hopes to discover the most distant and therefore earliest and youngest galaxies in the universe, and trace how they changed over time. She also researches the atmospheres of exoplanets – planets outside of the solar system –to understand what they are made of.
“After so many years of anticipation, finally seeing galaxies at an age of only a few hundred million years after the Big Bang has been the culmination of my career,” she said. “Seeing the happy faces of my team says it all.”
George Rieke played a vital role in coordinating the construction of the MIRI instrument, successfully uniting diverse teams. His award citation highlights his exceptional leadership, visionary approach and willingness to collaborate beyond his official responsibilities, acting as the “U.S. PI (principal investigator) for MIRI.” He has also made significant contributions to infrared astronomy as the principal investigator for Spitzer’s MIPS instrument.
George Rieke says he is excited about JWST’s capabilities to look at the evolution of the central massive black holes in galaxies. By combining previous radio, optical, ultraviolet and X-ray observations with those from JWST, his team is looking for elusive, very young black holes that are likely to be deeply shrouded in gas and dust that absorbs nearly all their output and emits it in the infrared where MIRI can find them. His team is also exploring small bodies, such as asteroids, in planetary systems outside of our solar system.
Artist's impression of the James Webb Space Telescope in space
Marcia and George Rieke have played significant roles in developing two critical instruments of the James Webb Space Telescope: Marcia is the principal investigator of the Near-Infrared Camera, or NIRCam, and George serves as the project scientist for MIRI, which stands for Mid-Infrared Instrument. NASA
“It is so exciting not just for me but for our entire research group to see so many aspects of astronomical sources that were completely out of reach to us before the launch of JWST,” George Rieke said. “It took 50 years to make this happen, but what a fantastic reward.”
Rigby is known for her groundbreaking research on using gravitational lensing to study galaxies in the early universe. This work, which originated during her doctoral studies at UArizona, has continued through her leadership of the JWST project TEMPLATES, which stands for Targeting Extremely Magnified Panchromatic Lensed Arcs and their Extended Star Formation. TEMPLATES leverages JWST’s Near-Infrared Spectrograph and MIRI to obtain high-resolution spectral images of gravitationally lensed galaxies. This allows Rigby and her team to construct images of early-universe galaxies that are much more detailed than what would be possible to observe with conventional imaging techniques.
Rigby’s achievements have garnered numerous accolades, including the NASA Robert H. Goddard Award for Exceptional Achievement for Science, Nature’s 10 Ones to Watch in 2022, BBC’s 100 Women and other honors. She also had the honor of presenting and explaining the first JWST results to President Joe Biden.
“All of us at Steward Observatory are incredibly happy that NASA is recognizing Marcia, George, and Jane for their major contributions to JWST,” said Buell T. Jannuzi, director of Steward Observatory and head of the Department of Astronomy. “By recognizing their achievements, NASA is also recognizing the teams these three amazing individuals have formed, developed, and sustained throughout the years it took to develop, launch, and commission JWST. We are looking forward to celebrating with George and Marcia once they receive their medals at Goddard Space Flight Center.”
Dans la constellation du Verseau (Aquarius), à 700 a.l. de la Terre, l'image infrarouge du télescope spatial Spitzer de la NASA montre la nébuleuse planétaire de l'Hélice NGC 7293 aux couleurs vives et ressemblant à un oeil géant. Elle est composée, comme toutes les nébuleuses planétaires, de restes d’étoiles qui ressemblaient autrefois beaucoup à notre soleil. Lorsque des étoiles semblables au soleil meurent, elles gonflent leurs couches gazeuses externes qui sont chauffées par le noyau chaud de l’étoile morte, appelé naine blanche. Avec la vision infrarouge de Spitzer, l’œil ressemble plus à celui d’un monstre vert. La lumière infrarouge des couches gazeuses externes y est en effet représentée dans les bleus et les verts. La naine blanche est visible comme un petit point blanc au centre de l’image. La couleur rouge au milieu de l’œil indique les couches finales de gaz soufflé quand l’étoile est morte.
Le cercle rouge plus lumineux au centre est la lueur d’un disque poussiéreux encerclant la naine blanche (le disque lui-même est trop petit pour être résolu). Cette poussière, découverte par la vision infrarouge à la recherche de chaleur de Spitzer, a probablement été stimulée par des comètes qui ont survécu à la mort de leur étoile. Avant la mort de l’étoile, ses comètes et peut-être des planètes auraient tourné autour de l’étoile de manière ordonnée. Mais quand l’étoile a repoussé ses couches externes, les corps glacés et les planètes extérieures ont été jetés et l’un dans l’autre, résultant en une tempête de poussière cosmique continue. Toutes les planètes intérieures du système auraient brûlé ou auraient été avalées alors que leur étoile mourante s’étendait. .. La nébuleuse de l'Hélice est l’un des rares systèmes d’étoiles mortes dans lesquels des preuves de survivants de comètes ont été trouvées. .. Cette image est constituée de donnéesCette image est constituée de données provenant de la caméra infrarouge et du photomètre d’imagerie multibande de Spitzer. Le bleu montre une lumière infrarouge de 3,6 à 4,5 microns, le vert une lumière infrarouge de 5,8 à 8 microns et le rouge une lumière infrarouge de 24 microns (cf. site Spitzer).
Pour situer l'astre dans sa constellation :
www.flickr.com/photos/7208148@N02/48845843028/in/datepost...
The region around the center of our Milky Way galaxy glows colorfully in this new version of an image taken by NASA's Spitzer Space Telescope.....The data were previously released as part of a long, 120-degree view of the plane our galaxy (see www.spitzer.caltech.edu/images/2680-ssc2008-11a-Spitzer-F...). Now, data from the very center of that picture are being presented at a different contrast to better highlight this jam-packed region. In visible-light pictures, it is all but impossible to see the heart of our galaxy, but infrared light penetrates the shroud of dust giving us this unprecedented view.....In this Spitzer image, the myriad of stars crowding the center of our galaxy creates the blue haze that brightens towards the center of the image. The green features are from carbon-rich dust molecules, called polycyclic aromatic hydrocarbons, which are illuminated by the surrounding starlight as they swirl around the galaxy's core. The yellow-red patches are the thermal glow from warm dust. The polycyclic aromatic hydrocarbons and dust are associated with bustling hubs of young stars. These materials, mixed with gas, are required for making new stars.....The brightest white feature at the center of the image is the central star cluster in our galaxy. At a distance of 26,000 light years away from Earth, it is so distant that, to Spitzer's view, most of the light from the thousands of individual stars is blurred into a single glowing blotch. Astronomers have determined that these stars are orbiting a massive black hole that lies at the very center of the galaxy.....The region pictured here is immense, with a horizontal span of 2,400 light-years (5.3 degrees) and a vertical span of 1,360 light-years (3 degrees). Though most of the objects seen in this image are located near the galactic center, the features above and below the galactic plane tend to lie closer to Earth.....The image is a three-color composite, showing infrared observations from two of Spitzer instruments. Blue represents 3.6-micron light and green shows 8-micron light, both captured by Spitzer's infrared array camera. Red is 24-micron light detected by Spitzer's multiband imaging photometer. The data is a combination of observations from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) project, and the Multiband Imaging Photometer for Spitzer Galactic survey (MIPSGAL).
Sh2-101 Nebulosa tulipano, questa la versione senza filtro a banda stretta, filtro che ne avrebbe migliorato i dettagli ed i colori.
Ottenuta con circa 1,5 ore di integrazione con solo filtro multibanda Optolong L-Pro.
Riprese fatte il 31 Agosto 2024 ai Monti della Luna di Cesana (TO), con telescopio Newton 18/600 e camera ASI 294 MC Pro.
The region around the center of our Milky Way galaxy glows colorfully in this new version of an image taken by NASA's Spitzer Space Telescope.....The data were previously released as part of a long, 120-degree view of the plane our galaxy (see www.spitzer.caltech.edu/images/2680-ssc2008-11a-Spitzer-F...). Now, data from the very center of that picture are being presented at a different contrast to better highlight this jam-packed region. In visible-light pictures, it is all but impossible to see the heart of our galaxy, but infrared light penetrates the shroud of dust giving us this unprecedented view.....In this Spitzer image, the myriad of stars crowding the center of our galaxy creates the blue haze that brightens towards the center of the image. The green features are from carbon-rich dust molecules, called polycyclic aromatic hydrocarbons, which are illuminated by the surrounding starlight as they swirl around the galaxy's core. The yellow-red patches are the thermal glow from warm dust. The polycyclic aromatic hydrocarbons and dust are associated with bustling hubs of young stars. These materials, mixed with gas, are required for making new stars.....The brightest white feature at the center of the image is the central star cluster in our galaxy. At a distance of 26,000 light years away from Earth, it is so distant that, to Spitzer's view, most of the light from the thousands of individual stars is blurred into a single glowing blotch. Astronomers have determined that these stars are orbiting a massive black hole that lies at the very center of the galaxy.....The region pictured here is immense, with a horizontal span of 2,400 light-years (5.3 degrees) and a vertical span of 1,360 light-years (3 degrees). Though most of the objects seen in this image are located near the galactic center, the features above and below the galactic plane tend to lie closer to Earth.....The image is a three-color composite, showing infrared observations from two of Spitzer instruments. Blue represents 3.6-micron light and green shows 8-micron light, both captured by Spitzer's infrared array camera. Red is 24-micron light detected by Spitzer's multiband imaging photometer. The data is a combination of observations from the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire (GLIMPSE) project, and the Multiband Imaging Photometer for Spitzer Galactic survey (MIPSGAL).
Multiband composite of a forest lake near the Norwegian-Swedish border. Winter scenery. Influx of melt water makes patches of open water in the otherwise compact ice layer.
Nikoin D200 full-spectrum, Coastal Optics 60mm f/4 APO lens (now Jenoptik)
Filtration and colour encoding:
UV: Baader U, monochrome rendition used as blue channel
Visible: Baader UV/IR Cut, green channel used as is
IR: B+W 093 (Wratten 87C equivalent), monochrome rendition used as red channel
A teaser for a project I'm working on: a multiband LW/MW/SW crystal set receiver. This is the front panel, made from a sheet of black translucent acrylic that still has its original factory protective backing. The large hole is for a panel meter that measures signal strength.
(english below)
(ITA)
Solo un esperimento.
Consigli e suggerimenti sono ben accetti..
159 scatti (53 x3 +/-2EV) Pentax x90@626mm di focale
Autopano:
riconoscimento con algoritmo forte e correzione colore solo per esposizione
un bel ritaglio per avere solo l'isola in primo piano (quindi non tutte le foto sono state utilizzate nel rendering finale).
nelle opzioni per il rendering utilizzare multibanda come miscelatore( livello 0), fusione e hdr ghost; salvare il tutto come .HDR.
photomatrix pro:
Aprire l .HDR e utilizzare il preset painterly.
Photoshop:
duplicare lo sfondo e applicare il filtro timbro sul nuovo livello. Sempre sul livello duplicato selezionare il bianco e cancellarlo per far riapparire i colori sottostanti..
(EN)
Just a tryout.
Tips and suggestions are welcome ..
159 shots (53 x3 + /-2EV) Pentax x90 @ 626mm focal length.
Autopano:
Detection with Strong algorithm and exposure color correction.
cropping the pano to focus on the island (so not all photos where used in the final rendering).
in the render tab multiband blender at level 0, fusion and HDR ghost option enabled. saved to .HDR
Photomatrix:
Load the .HDR file and use the painterly preset
Photoshop:
Duplicate the background and apply a stamp filter; then delete color white to expose the underlyng colors..
A Sony Earth-Orbiter multi-band radio, model CRF 5100. These were made from 1975-81 and were an obvious competitor to the Zenith Trans-Oceanic.
Here is a link to a RadioMuseum.org article on Nordmende radios in the United States in the 1960s/1970s. www.radiomuseum.org/forum/nordmende_transistor_radios_in_...
This infrared image from NASA's Spitzer Space Telescope shows the Helix nebula, a cosmic starlet often photographed by amateur astronomers for its vivid colors and eerie resemblance to a giant eye.
The nebula, located about 700 light-years away in the constellation Aquarius, belongs to a class of objects called planetary nebulae. Discovered in the 18th century, these cosmic butterflies were named for their resemblance to gas-giant planets.
Planetary nebulae are actually the remains of stars that once looked a lot like our sun.
When sun-like stars die, they puff out their outer gaseous layers. These layers are heated by the hot core of the dead star, called a white dwarf, and shine with infrared and visible-light colors. Our own sun will blossom into a planetary nebula when it dies in about five billion years.
In Spitzer's infrared view of the Helix nebula, the eye looks more like that of a green monster's. Infrared light from the outer gaseous layers is represented in blues and greens. The white dwarf is visible as a tiny white dot in the center of the picture. The red color in the middle of the eye denotes the final layers of gas blown out when the star died.
The brighter red circle in the very center is the glow of a dusty disk circling the white dwarf (the disk itself is too small to be resolved). This dust, discovered by Spitzer's infrared heat-seeking vision, was most likely kicked up by comets that survived the death of their star. Before the star died, its comets and possibly planets would have orbited the star in an orderly fashion. But when the star blew off its outer layers, the icy bodies and outer planets would have been tossed about and into each other, resulting in an ongoing cosmic dust storm. Any inner planets in the system would have burned up or been swallowed as their dying star expanded.
The Helix nebula is one of only a few dead-star systems in which evidence for comet survivors has been found.
This image is made up of data from Spitzer's infrared array camera and multiband imaging photometer. Blue shows infrared light of 3.6 to 4.5 microns; green shows infrared light of 5.8 to 8 microns; and red shows infrared light of 24 microns.
Picture by NASA
Candidate in Picture of the Year 2007.
1680x1050
Original at http://commons.wikimedia.org/wiki/File:169141main_piaa09178.jpg
Almost two years since my last upload.
Here's a spectacular and hard to find Toshiba 2 band radio.
A hefty shirtpocket radio with AM and a SW band. Despite its hefty feel the aesthetic appears to drift away from the more utilitarian look of many multiband radios.
A nice slab or reverse paint up top balanced by a unique curved or parabolic speaker grille.
The back cabinet is salmon/beige color.
Narrowband image with OSC camera. First light for the new "little" Sharpstar 61ED MarkII triplet. Using the standard 0.8 reducer the focal length is 275mm and the 28.3 mm diagonal of IMX571 color backlit sensor contains quite well this beautiful field. About 8h total hours of getting data, 300" unguided sub exp with IDAS NBZ multiband narrowband filter. The processing software has detected about 40000 stars in this beautiful field.
This is the real first light of "Pier 2" in my own little roof observatory in south Italy.
Newborn stars peek out from beneath their natal blanket of dust in this dynamic image of the Rho Ophiuchi dark cloud from NASA's Spitzer Space Telescope. Called "Rho Oph" by astronomers, it's one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth.
Rho Oph is a complex made up of a large main cloud of molecular hydrogen, a key molecule allowing new stars to form from cold cosmic gas, with two long streamers trailing off in different directions. Recent studies using the latest X-ray and infrared observations reveal more than 300 young stellar objects within the large central cloud. Their median age is only 300,000 years, very young compared to some of the universe's oldest stars, which are more than 12 billion years old.
This false-color image of Rho Oph's main cloud, Lynds 1688, was created with data from Spitzer's infrared array camera, which has the highest spatial resolution of Spitzer's three imaging instruments, and its multiband imaging photometer, best for detecting cooler materials. Blue represents 3.6-micron light; green shows light of 8 microns; and red is 24-micron light. The multiple wavelengths reveal different aspects of the dust surrounding and between the embedded stars, yielding information about the stars and their birthplace.
The colors in this image reflect the relative temperatures and evolutionary states of the various stars. The youngest stars are surrounded by dusty disks of gas from which they, and their potential planetary systems, are forming. These young disk systems show up as red in this image. Some of these young stellar objects are surrounded by their own compact nebulae. More evolved stars, which have shed their natal material, are blue.
The extended white nebula in the center right of the image is a region of the cloud which is glowing in infrared light due to the heating of dust by bright young stars near the right edge of the cloud. Fainter multi-hued diffuse emission fills the image. The color of the nebulosity depends on the temperature, composition and size of the dust grains. Most of the stars forming now are concentrated in a filament of cold, dense gas that shows up as a dark cloud in the lower center and left side of the image against the bright background of the warm dust. Although infrared radiation at 24 microns pierces through dust easily, this dark filament is incredibly opaque, appearing dark even at the longest wavelengths in the image.
Image Credit: NASA/JPL-Caltech/Harvard-Smithsonian Center for Astrophysics
[Reciprocal link back Newborn Stars]
Update 20080223: A monograph, ASM-0001 is avalable on the astronomy download page and a 35x23 inch poster can be purchased at the SciTechLab Store.
Theres nothing about this radio receiver that has any connection to the digital age this is a fully analogue set from back in the 1980s ... and ....
this is still in perfect working condition ..
the range of bands available are ........
AM broadcast 540-1600 khz
SW1 2 - 6 mhz
SW2 15-30 mhz
FM & TV sound 55-108 mhz
TV sound (2) 175 - 218 mhz
Aircraft VHF Marine .....
Land mobile .... 108 - 175 mhz
A multi-band receiver from 1970 in a special version. Size 375 x 250 x 135 mm, weight 6 kg. As standard there are long wave, medium wave, marine band, shortwave, VHF high, AIR radio, FM broadcasting, FM low. In addition, there is a subsequently built-in UHF converter for the frequencies from 398-500 MHz. Adjustable on the right side with a separate regulator. Fine tuning is done using the normal tuning on the front panel. With the BFO control an SSB single sideband signal can be demodulated. The squelch is not adjustable. There are two telescopic antennas, connections for wire antennas and a jack for coaxial cable. A port for audiotape and headphones is on the left.
I've tried it and it still works. But apart from a few radio stations, I couldn't hear anything. For the Swiss IBBK radio it is still usable. A 50 year old rarity whose value I cannot estimate. Switzerland, March 4, 2021.
Lightweight multi-band antenna and repeater node.
Auto-balancing unicycle platform.
Human driver-operator ideal for rugged off-chart navigation, hands-on signal acquisition and troubleshooting.
(These so-called Repeatermen are nearly folk heroes in far craters that would be utterly isolated without their lonely vigils in the trackless wastes. A visitor might often hear the haunting melody of the "Ballad of the Lost Repeaterman", whistled in the access corridors and valve-rooms of lonely outposts by moon-weary pressuremen on graveyard shifts.)
Kavinė Magdė is a quirky roadside cafe in rural Lithuania. Magdė has decorated it in vintage radios, among other things.
The frequencies are labeled with the names of Soviet-bloc cities: Moscow, Odessa, Tallinn, Tashkent, Alma Ata, Novosibirsk, Leningrad, and a couple dozen others. And also some European capitals & Beijing. The farthest east Russian city I see so far is Chita, east of Lake Baikal; no Vladivostok. Maybe the signal from there didn't carry to Europe, even over short wave?
I did a search on the model name, Ural (Урал), and it was manufactured at the Sarapoul Orjonikidze Radio Works, at the foot of the Ural Mountains, around 1963; see www.radiomuseum.org/r/sarapoul_ural.html. The factory had been near Moscow up until WWII, but it was relocated in haste deep into Russia as the Germans closed in on the capital. The radio receives AM, FM/UHF, short wave, and long wave, and there is a record turntable under those coffee cups. Judging from the icons at bottom left and right, it has separate adjustments for bass & treble.
Identical to Realtone TR-970, "Voyager": large and very well constructed multi band receiver with its characteristic cabinet in the form of a slightly pronounced "V" and thin for its size.
The chassis has nine NEC transistors, distinguishing the two large/round black audio output transistors, NEC 2SB165, powered by four "AA" size batteries.
This particular item is in very good condition and functioning, but requires fresh electrolytic capacitors.