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Main page  Observations

Observations
Images and observations taken with Gx series of CCD cameras

Here we present only a few examples of images 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.

Presented images courtesy of (alphabetically) Dieter Beer, Philippe Bernhard, Laurent Bourgon, Jan Camek, Didier Chaplain, Jonas Fiedler, Patrick Hochleitner, Warren Keller, Michael Miller, Martin Myslivec, Pavel Pech, Ondrej Podlucky, Reinhold Wittich.

False colors vs. real colors
 What are real colors of deep sky objects? Philippe Bernhard's unique images of the same nebula acquired through various filters allow to explain what are “false color” images and why are they used to visualize details in the emission nebulae, which shine also in wavelengths invisible to human eye. (more...)
Cave Nebula, Sharpless 155 and Herbig-Haro 168
 A wide-field image of the portion the constellation Cepheus, spanning three full Moons of sky area, was published as the Astronomy Picture of the Day on June 11, 2015. Its' author Herbert Walter needed more than 12 hours of exposure time with G2-8300 camera on FSQ106ED telescope to capture this image. (more...)
FRAM robotic telescope captures comet Lovejoy
 Remotely operated robotic telescope FRAM, located at the Pierre Auger observatory at Los Leones, Argentina, captured the comet C/2014 Q2 (Lovejoy). Telescope operators used wide-field setup (G4-16000 camera with 300 mm, f/2.8 Nikkor lens), piggybacked on the main telescope, to acquire multiple images through photometric BVR filters and combine them into resulting color image. (more...)
Early observations of asteroid 2012 DA14 by FRAM robotic telescope
 FRAM robotic telescope of Pierre Auger observatory at Los Leones, Argentina, is operated by Institute of Physics of the Czech Academy of Sciences. The telescope, equipped with Gx CCD cameras, was among the first optical telescopes, which captured approaching asteroid 2012 DA14. (more...)
CzeV343: unique quadruple star discovered in Auriga
 Despite growing number of large telescopes and fully robotic surveys automatically scanning the heavens, there are still rare objects that remain to be discovered. So there is still room for small telescopes, regardless if operated by amateur or professional astronomers, to discover something new and interesting. CzeV343 is apparently a hierarchical quadruple star system, consisting of two eclipsing binary stars. Only a handful of such systems are known to astronomers and only three of them exhibit eclipses of both double stars—BV Dra and BW Dra, V994 Her and KIC 4247791, the later one discovered using the Kepler planet-hunting space telescope. CzeV343 is apparently a fourth example, unique is several respects. And it was discovered with G4 camera on an affordable 25 cm commercial telescope. (more...)
Venus Transit 2012
 Martin Myslivec used his G1-2000 CCD camera on Lunt LS T Ha 60 solar telescope to capture transit of Venus across the Sun. Enjoy images of this rare event, next opportunity will be no earlier than on December 2117. (more...)
Novae discovered in M81 galaxy using G2-3200 CCD camera on 10 inch telescope
 Although absolute brightness of a typical nova can reach -7 or -8 mag, we can see it only as a star shining at 19 or 20 mag, when it explodes in the M81 galaxy 12 millions light years away. This is why telescopes with meter-class mirrors were used to search for them in such a big distance. But with a CCD camera capturing almost 90% of incoming photons, a telescope as small as 10 inches can be used to discover them. (more...)
New Nova in the M31 Andromeda Galaxy Found
 Kamil Hornoch, amateur astronomer awarded by the “Amateur Achievement Award” of the year 2006 by the Astronomical Society of the Pacific, found his 43rd nova in the M31 “Great Andromeda Galaxy”. This time he used his new G2CCD-1600 camera. (more...)
Astronomy Images Taken by G2CCD Cameras
 Number of G2CCD camera users take nice images of deep-sky wonders. Some of them are presented here. (more...)
G2CCD-1600 first light images
 Recently introduced KAF-1603ME based CCD cameras prove their capabilities to gather precise scientific data (e.g. in exoplanet transit observations) as well as to capture beautiful images of deep sky images. We introduce some very first images obtained with the G2CCD-1600 prototype. (more...)
Exoplanet XO-1b transit observations
 The XO robotic telescope found slight brightness variations of the star GSC 02041-01657 in Corona Borealis on the beginning of year 2006. Consequent photometric observations, performed by amateur astronomers, confirmed very slight 0.03m brightness drops repeating every 3.94 days. The 193rd exoplanet was discovered—the star was named XO-1 and the newly found planet XO-1b. It is only 10th exoplanet found by detection of planet transits. How difficult is it to actually observe the exoplanet transit? (more...)
73/P Schwassmann-Wachmann
 Comet 73/P passed exceptionally close to Earth on May 2006. It was not very bright so imaging it while speeding across the sky was a challenging task. On the other side computer processing of acquired images can create interesting views. (more...)
2003UB313—the 10th planet or only the biggest known KBO?
 At 97 AU from the Sun and about 3000 km diameter, the Kuiper-belt object 2003UB313 gleamed only at 18.9m on January, 2006. Although slightly bigger than Pluto, this object appears about 100× dimmer. Still amateur astronomers can capture it with backyard telescope and CCD camera. (more...)
How Deep Can You Go?
 High-quality CCD camera promises converting of majority of incoming light into information. Another important feature is keeping system-induced noise as low as possible to maintain good signal to noise ratio. Regulated chip cooling and system read noise limited only by the CCD chip itself is a must for scientific-grade instruments. So what is the limiting magnitude for typical backyard telescope? (more...)
G2CCD-0400 Deep Sky Images
 First shots with the production G2CCD-0400 camera show its capability to capture beautiful images of deep sky objects. (more...)
G2 CCD Camera Prototype First Light
 The first prototype of G2 CCD camera acquired first light on June 2005. Although the camera mechanics and electronics were somewhat changed from that time, the overall shape is almost finished. (more...)
 
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