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Images and interesting observations taken with Gx series of astronomical cameras

Here we present only a few examples of images and scientific observations taken with Gx cameras. More complete lists of images acquired with respective camera series are attached to the end of each page describing particular series. These lists contain also authors, used telescopes, exposure details etc.

There is also a slide-show of the best images of deep-sky wonders taken with Gx cameras available in the Gallery section.

Galaxies NGC4725 and NGC4747
 NGC4725 and NGC4747 galaxies in the constellation Coma Berenices are angularly smaller and also dimmer compared to big and bright spirals like M31 or M81. Therefore, these galaxies are much less often imaged and generally less known. Still, high quality image shows them in their full beauty and details. (more...)
Comet C/2020 F8 (SWAN)
 Comet C/2019 Y4 (Atlas) disappointed northern-hemisphere observers by breaking into pieces and thus it will not reach the brightness everybody hoped. But another comet C/2020 F8 (SWAN), visible from the southern hemisphere, evolves into beauty and brightness. (more...)
M82 “Cigar” Galaxy
 The M82 is also known as “The Cigar Galaxy”. It can be seen close to more famous spiral M81 “Bode” galaxy in the constellation Ursa Major. While the bigger and brighter M81 shows nice spiral structure, somewhat chaotic appearance of the smaller M82 caused the galaxy was considered to be irregular. Only recent observations in infra-red light revealed also M82 has spiral arms, only not that prominent, because we see the galaxy almost edge-on. (more...)
NGC2264 “Christmas Tree” cluster and “Cone Nebula”
 NGC2264 in the constellation Monoceros is both star cluster and nebula. Visual observers nicknamed the cluster “Christmas Tree”, because the brightest stars create a wedge-like shape, resembling lights on a Christmas tree. Astro-photographers often use another nickname — the “Cone Nebula”, because of a distinctive cone of dark nebula, extending from the tree top. It is visible on long-exposure images as a silhouette on the deep-red glowing hydrogen clouds on the background. (more...)
CTB 1 Supernova Remnant
 CTB 1 nebula in the constellation Cassiopeia is a remnant of an ancient supernova explosion. The nebula very low brightness is obviously a cause it is imaged much less frequently than brighter and thus more popular nebulae. (more...)
M78 nebula in Orion
 If we rank nebulae in the constellation Orion according how bright or known they are, M78 nebula in probably only on the third position, after famous “Great” nebula M42 and “Horse Head” with “Flame” nebulae duo. Being smaller and dimmer than their counterparts, imaging of M78 requires more effort to get good image, but the result may be more rewarding. At last, there are far less images of M78 all around the Internet. (more...)
NGC1365 galaxy in Fornax
 Today we present another masterpiece from the CielBoreal/CielAustral group of astro-photographers (Laurent Bourgon, Jean-Claude Canonne, Nicolas Outters, Philippe Bernhard and Didier Chaplain) — the NGC1365 barred spiral galaxy in the constellation Fornax. (more...)
Cygnus nebulae
 Is the Universe empty or full of stars and nebulae? This depends on what “empty” means to individual people. If you imagine a star like a small water drop, another water-drop sized star will be tens or hundreds of kilometers away. And this is valid only for galaxies — rather isolated islands of matter millions of light years apart. Space among galaxies lacks even these “water drops”. (more...)
Taurus Cloud
 The best Christmas gift for us is to hear from users satisfied with our cameras and to see their wonderful images acquired with them. Leonardo Orazi acquired the G4-16000 camera just prior Christmas and now we received very short e-mail from him, just two lines. The first line says “Incredible camera … great job” and the second line is the link to the first-light image taken with the camera. (more...)
“Rosette” nebula
 “Scientific” and “aesthetic” astronomical imaging split only recently. Images of galaxies, star clusters and nebulae, published in popular astronomy books only a few tens of years ago, were mostly captured for research purposes. When a state-of-the-art technology like CCD cameras, wide-field optics, precision telescope mounts and powerful computers become accessible to amateurs, the very best images of deep sky wonders start to be captured by amateurs for pure joy and satisfaction from beautiful universe. Still, sometimes they illustrate some interesting and important astronomical phenomena, like the birth on new stars on the Rosette Nebula image acquired by Thomas Lelu. (more...)
Corona Australis
 This beautiful image of part of the Corona Australis constellation shows numerous dark nebulae, barely glowing in the scattered light of remote stars belonging to our Milky Way galaxy. Some portions of interstellar dust, reflecting the light of a nearby hot stars, shine in blue-green color. The globular cluster NGC 6273, visible in the right portion of the image, is much farther than the nebulae, beyond the Milky Way disk. (more...)
Orion belt with “Flame” and “Horse Head”
 It is virtually impossible to find a deep-sky object, which remains out of sight of amateur astronomers these days. While everything on the sky is already imaged many times, taking astrophotography ourselves brings joy and satisfaction, when mysteries of the universe reveal themselves during processing and stacking of acquired images. (more...)
“Leo Triplet”
 Small camera — great image. Thomas Lelu uses his G2-4000 on 10” corrected Newtonian telescope to produce beautiful images. Three galaxies in the constellation Leo are often denoted as “Leo triplet”. (more...)
“Horse Head” and “Great Orion Nebula” in narrow-band
 We all used to the fact, that long exposure photography reveals cosmic structures so dark, that human’s eye cannot see them even in very large telescopes. What’s more, light from gaseous nebulae can be “enhanced” using narrow-band filters (more precisely, narrow-band filter of course cannot gain the light from nebula, but it very effectively suppresses disruptive background sky light, so it cannot overwhelm faint nebula glow). (more...)
NGC 7023 “Iris” nebula
 NGC 7023 “Iris” nebula in Cepheus is a popular target for astro-photographers. Its blue-green color is caused by reflection of a light from a 7th magnitude star in its center. But the nebula itself is much greater than the shining part around the bright star, only the majority of its gaseous clouds remains hidden in shadows. (more...)
Not only pretty pictures...
 CCD cameras caused revolution in astronomical research, similar to introduction of telescope and more recently to the usage of photographic plates, capable to accumulate light during long exposures. We very well understand that the beautiful pictures of the deep-space objects, out of the reach of human eye regardless of telescope used, are very attractive and majority of our users enjoy them. But still, astronomy is a science and scientific research is very important application for our cooled CCD (and CMOS) cameras. The image presented here shows so-called light curve of recently discovered double-eclipsing quadruple star system. (more...)
Omega Centauri
 It is always a pleasure to present an “easy” object, but “done like a tough one”, because results are usually stunning. Omega Centauri is the biggest and brightest globular cluster of both hemispheres (but visible from the southern hemisphere only, we northern-hemisphere astronomers, must be content with M13 in Hercules, which is beautiful, too). (more...)
M101 “Pinwheel Galaxy”
 M101 “Pinwheel Galaxy” in Ursa Major is angularly large object, but its surface brightness is rather low. This is why it is sometimes used by visual observers to judge sky brightness — if you can see M101, background sky is quite dark. But if you point you telescope exactly where M101 is located and cannot see any trace of it, the light pollution on your site is probably high and also the weather may not be cooperating. (more...)
Orion Nebulae
 If you go really deep, the only way to advance is to go even deeper. This is apparently a trend in astro-photography and the latest image from Paolo Moroni clearly demonstrates it. Capturing the Great Orion nebula or the Horse-head dark silhouette is no longer enough regardless of details in the image. Astro-photographers want to show that also areas, simply considered dark in the not so distant past, are in fact also filled with inter-stellar gas clouds, only much darker. (more...)
Large Magellanic Cloud
 Continuous pushing of amateur astro-photography limits seems to be a new norm these days. This time the CielAustral group of astro-photographers, operating their observatory in Chile, broke the accumulated exposure time record with 1060 hours long exposure of Large Magellan Cloud. Image size 14400 by 14200 pixels is maybe a good candidate for image resolution record? (more...)
CG 4 nebula
 The CG 4 nebula in the constellation Puppis is sometimes nicknamed as “God’s hand”. But we believe the nebula shape would probably resemble a giant worm from desert planet Arrakis to all Sci-Fi fans (what's more, the worm just tries to swallow entire galaxy :). (more...)
“Horse Head Nebula”
 The horse-head-shaped dark nebula silhouette against the deep-red glow of the background hydrogen cloud definitely become the iconic deep-sky object. There is hardly any popular astronomy book missing its image and Horse Head Nebula many times occurred on front pages of all popular astronomy magazines. (more...)
LBN 777 “Baby Eagle Nebula”
 Bright and shiny bluish nebulosity around stars belonging to the Pleiades open cluster shows us how interstellar gas and dust clouds look like when illuminated by nearby stars. But how about other parts of the Taurus molecular cloud (to which Pleiades belong), far from bright star cluster? The LBN 777 nebula is a good example how such cloud may look. (more...)
M16 “Eagle Nebula”
 The stream of amazing images from CielBoreal and CielAustral groups apparently never dries. The latest one shows the M16 star cluster and nebula, nicknamed the “Eagle Nebula”. This object become particularly famous when the detailed Hubble Space Telescope image of the nebula center, called “Pillars of Creation”, was published. (more...)
M31 Great Andromeda Galaxy
 Southern skies are probably richer than our northern ones. Northern hemisphere astronomers cannot see Magellan Clouds, Omega Centauri and other famous objects. But at last we at northern hemisphere can see the Great Andromeda galaxy. M31 galaxy in Andromeda is our own Milky Way galaxy sibling and both galaxies comprise a dominant, most massive pair of the local galaxy group. But the M31 holds another record – it is the most distant object, which light can be spotted by naked eye. (more...)
CTB-1 supernova remnant
 We have another rare “cosmic bubble” to show, but this time it is a remnant of ancient supernova explosion. The nebula is designated CTB-1 and is located in the constellation Cassiopeia. We not only never seen this bubble before, we were even not aware of its existence until Martin Myslivec send us this image, despite the object appears as big as full Moon on the sky. (more...)
SH2 308 nebula
 SH2 308 nebula (also known as Sharpless 308 or LBN 1052) in the constellation Canis Major is an example of “space bubble”, created by intense radiation of bright, hot Wolf-Rayet central star (another such object is for instance NGC7635 “Bubble nebula” in the constellation Cassiopeia). (more...)
NGC6995 “Veil Nebula”
 Thomas Lelu needed four sets of exposures, tiled to each other, to be able to assembly this wide field, yet very detailed mosaic of the NGC6995 nebula in the constellation Cygnus with his G2-4000 CCD camera. (more...)
NGC5128 “Centaurus A” galaxy
 This unique image of the NGC5128 galaxy, better known under the name “Centaurs A”, combines several unique qualities. (more...)
NGC7000 “North America” and NGC6888 “Crescent Nebula” in narrow band
 Thomas Lelu sent us another wonderful examples of great images captured with small camera. Thomas uses his G2-4000 camera on 10" Newtonian telescope (and also G1-0301 guiding camera) to capture very long exposures through filters, passing only very small interval of wavelengths. (more...)

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