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Long-duration tracked exposure of the M-22 globular cluster taken at the prime focus of my 6" Astrophysics refractor telescope.
Omega Centauri
Taken at Mt John, Lake Tekapo, New Zealand, 16-Apr-10.
FL 200mm
ISO800
f5.6
Exposure 5 minutes guided
Canon 50D, uploaded as shot with no post processing (apart from cropping)
Edited Hubble Space Telescope image of the Omega Centauri globular cluster. Color/processing variant.
Original caption: An international team of astronomers has used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the innermost region of Omega Centauri, the largest and brightest globular cluster in the sky. These stars provide compelling new evidence for the presence of an intermediate-mass black hole. Omega Centauri is visible from Earth with the naked eye and is one of the favourite celestial objects for stargazers in the southern hemisphere. Although the cluster is 17 700 light-years away, lying just above the plane of the Milky Way, it appears almost as large as the full Moon when seen from a dark rural area. The exact classification of Omega Centauri has evolved through time, as our ability to study it has improved. It was first listed in Ptolemy's catalogue nearly two thousand years ago as a single star. Edmond Halley reported it as a nebula in 1677, and in the 1830s the English astronomer John Herschel was the first to recognise it as a globular cluster. Omega Centauri consists of roughly 10 million stars that are gravitationally bound. [Image Description: A globular cluster, appearing as a highly dense and numerous collection of shining stars. Some appear a bit larger and brighter than others, with the majority of stars appearing blue and orange. They are scattered mostly uniformly, but in the centre they crowd together more and more densely, and merge into a stronger glow at the cluster’s core.]
The great cluster in hercules, a globular cluster known for being big bright and very nice to view through a telescope.
"M92 is one of the brightest globular clusters although often overlooked in favour of M13 which also lies in the constellation of Hercules.
The cluster is located about 27,000 light-years from Earth, and is thought to be at least 11 billion years old. It contains roughly 330,000 stars with a tightly packed core and has a diameter of about 109 light-years. It has a relative velocity of -112 km/s."
- Leeds Astronomical Society
Picture taken using:
ZWO ASIAIR Pro
ZWO ASI533MC Pro at -10C
ZWO ASI174MM Mini guidecam on ZWO OAG
Celestron C5 Spotter scope
SkyWatcher EQ6-R Pro
ZWO UV IR Cut filter
Captured in Live View, saving every frame:
10 Lights at 300 seconds, gain 100, temp -10C
20 Flats, at 40ms gain 100, temp -10C
50 Bias at 1ms, gain 100, temp -10C
10 Darks at 300 seconds gain 100, temp -10C
Bortle 4 sky.
Integrated in Astro Pixel Processor and adjusted in Photoshop CS4.
#m92 #hercules #globularcluster #globular #cluster #astrophoto #zwo #zwoasiairpro #zwoasi533mcpro #asi533mcpro #celestron #c5 #astrophotography #astronomy
Messier 107 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 12 - 5 minute exposures.
More information at SEDS.org
Edited Hubble Space Telescope image of the globular cluster Messier 54, which orbits the nearby Sagittarius Dwarf Galaxy. Inverted color variant.
Original caption: The object shown in this beautiful Hubble image, dubbed Messier 54, could be just another globular cluster, but this dense and faint group of stars was in fact the first globular cluster found that is outside our galaxy. Discovered by the famous astronomer Charles Messier in 1778, Messier 54 belongs to a satellite of the Milky Way called the Sagittarius Dwarf Elliptical Galaxy. Messier had no idea of the significance of his discovery at the time, and it wasn’t until over two centuries later, in 1994, that astronomers found Messier 54 to be part of the miniature galaxy and not our own. Current estimates indicate that the Sagittarius dwarf, and hence the cluster, is situated almost 90 000 light-years away — more than three times as far from the centre of our galaxy than the Solar System. Ironically, even though this globular cluster is now understood to lie outside the Milky Way, it will actually become part of it in the future. The strong gravitational pull of our galaxy is slowly engulfing the Sagittarius dwarf, which will eventually merge with the Milky Way creating one much larger galaxy. This picture is a composite created by combining images taken with the Wide Field Channel of Hubble’s Advanced Camera for Surveys. Light that passed through a yellow-orange (F606W) was coloured blue and light passing through a near-infrared filter (F814W) was coloured red. The total exposure times were 3460 s and 3560 s, respectively and the field of view is approximately 3.4 by 3.4 arcminutes.
An unprocessed copy of my M13 image showing the feint galaxy NGC6207 captured by accident in the bottom corner. Amazing really considering the hazy cloud cover and nearby full moon!
Image by Johan Moolman
Single Exposure
Meade 14", autoguiding LX850 Starlock system, Canon 6D modified
L'amas globulaire Messier 56. Mêmes bruts que la photo de Matrok ici www.flickr.com/photos/13453036@N02/50029296888
Là encore, on apprend, on apprend.
Hubble Space Telescope image of the globular cluster, Palomar 2 (named after the telescope used to discover it).
L'amas globulaire M13. Appelons ça un retour aux fondamentaux !
(ou plutôt un petit bis : peu de prises, médiane...)
Camera: Meade DSI Color II
Exposure: 51m (204x15s exposures) LRGB exposure
Focus Method: Prime focus
Telescope Aperature/Focal Length: 203×812mm
Mount: LXD75
Telescope: Meade 8" Schmidt-Newtonian
Stacked: DeepSkyStacker
Adjustments: leveled in Photoshop
Location: Flintstone, GA
M13: The Great Globular Cluster in Hercules, approximately 25,000 Light Years away
(Taken by my husband, from his observatory in our back yard. He says he is too busy for flickr or other photo sharing sites. I say this is too cool not to share!)
Messier 92 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 30 - 2 minute exposures.
More information at SEDS.org
Imaged & processed using the Bradford Robotic Telescope's FLI MicroLine fitted Celestron C14. Further processing done using FITS Liberator & Pixelmator 3.0 FX.
The globular cluster located in the constellation Sagitta lies about 12,000 light years from Earth & spans around 27 light years.
Globular Cluster (M15)
Telescope (Lens): Vixen ED80Sf
Addition Optics: None
Camera: Canon XSi
Exposure: 45 sec
ISO: 1600
Processing: Single Image, Cropped
Tracked or a Celestron Pro
L'amas globulaire portant le numéro 10 du catalogue de Charles Messier, une de ses belles découvertes. Dans le Serpentaire, non loin visuellement de l'autre amas globulaire M12.
Messier 56 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 20 - 3 minute exposures.
More information at SEDS.org
Messier 10 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 30 - 2 minute exposures.
More information at SEDS.org
Messier 30 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 30 - 1 minute exposures.
More information at SEDS.org
Messier 15 or M15 (also designated NGC 7078) is a globular cluster in the constellation Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Charles Messier's catalogue of comet-like objects in 1764. At an estimated 13.2 billion years old, it is one of the oldest known globular clusters.
This image was taken from Silver City, NM: 11 - 300s luminous images: A&M 152mm F8 telescope, FLI PL16000M camera cooled to -30C. 9 - 300s RGB images: Takakashi FSQ-106N 106mm F5.1 telescope, SBIG ST4000XCM camera cooled to -20C. Both scopes mounted on Paramount ME.
M15 is about 33,600 light-years from Earth. It has an absolute magnitude of -9.2 which translates to a total luminosity of 360,000 times that of the Sun. Messier 15 is one of the most densely packed globulars known in the Milky Way galaxy. Its core has undergone a contraction known as 'core collapse' and it has a central density cusp with an enormous number of stars surrounding what may be a central black hole.
Messier 15 contains 112 variable stars, a rather high number. It also contains at least 8 pulsars, including one double neutron star system, M15 C. Moreover, M15 houses Pease 1, one of only four planetary nebulae known to reside within a globular cluster, which was discovered in 1928. From Wikipedia.
L'amas M5 (le numéro 5 du vénérable catalogue de Messier). C'est un des plus gros amas globulaires. Comme son nom l'indique et comme on le voit sur l'image, un amas globulaire est une forte concentration d'étoiles qui a grossièrement les symétries d'une sphère. Celui-ci a un diamètre de 165 années lumières et contient près de 100 000 étoiles.
Image réalisée à partir d'une cinquantaine de clichés réalisés avec une caméra GP-Cam au foyer d'un télescope Skywatcher 150/750, empilées avec Deep Sky Stacker, le résultat étant ensuite sévèrement retraité avec GIMP pour faire ressortir les couleurs et disparaître le bruit de fond (sauf un peu en bas à gauche hélas).
You can see the effects of light pollution here. However this is infact one of the first shots at astrophotography.
This is three images stacked together, slightly adjusted - but I am learning!
M3 is located in the constellation Canes Venatici and should be visible in binoculars.
Another better example of this type of object is M13, also in this photostream.
Messier 12 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 30 - 2 minute exposures.
More information at SEDS.org
Object name: M 13
Popular name: Hercules Cluster
Object type: Globular cluster
Magnitude: 5.8
Size: 20.0'
Constellation: Hercules
An image taken an a useless night for imaging. Atik 16IC-S, 50 frames from 10-45s. Stacked and processed in Nebulosity.
Messier 13 taken using a 12.5 inch f/9 RCOS Ritchey-Chrétien telescope with an SBIG ST10XME and AO7. The image is a combination of 25 - 2 minute exposures.
More information at SEDS.org
Object name: M 2
Object type: Globular Cluster
Magnitude: 6.6
Size: 13.0'
Constellation: Aquarius
Image captured and processed in Nebulosity. Atik 16IC-S CCD camera on 72mm f/6 WO Megrez APO refractor. Autoguided using a Watec 120N video camera on ST80 using PHD software. Astronomik CLS filter.
L = 10x120s
Binocular sketch of C/2006 M4 (SWAN) showing ion tail and turquoise coma with Messier 13 (M13) near the end of the tail
Lights 50 x 60s f/5 ISO 400
Darks 30 x
Bias 99 x
Flats 108 x
Imaging: Canon 50D mounted on Skywatcher equinox 80mm with Televue TRF-2008 Reducer/Flattener
Guiding: Orion Starshoot on Skywatcher 80mm f/5 refractor.
Updated with proper flats. Also did some PP to remove light pollution gradient.
Edited Hubble Space Telescope image of the Omega Centauri globular cluster.
Original caption: An international team of astronomers has used more than 500 images from the NASA/ESA Hubble Space Telescope spanning two decades to detect seven fast-moving stars in the innermost region of Omega Centauri, the largest and brightest globular cluster in the sky. These stars provide compelling new evidence for the presence of an intermediate-mass black hole. Omega Centauri is visible from Earth with the naked eye and is one of the favourite celestial objects for stargazers in the southern hemisphere. Although the cluster is 17 700 light-years away, lying just above the plane of the Milky Way, it appears almost as large as the full Moon when seen from a dark rural area. The exact classification of Omega Centauri has evolved through time, as our ability to study it has improved. It was first listed in Ptolemy's catalogue nearly two thousand years ago as a single star. Edmond Halley reported it as a nebula in 1677, and in the 1830s the English astronomer John Herschel was the first to recognise it as a globular cluster. Omega Centauri consists of roughly 10 million stars that are gravitationally bound. [Image Description: A globular cluster, appearing as a highly dense and numerous collection of shining stars. Some appear a bit larger and brighter than others, with the majority of stars appearing blue and orange. They are scattered mostly uniformly, but in the centre they crowd together more and more densely, and merge into a stronger glow at the cluster’s core.]
Edited Hubble Space Telescope image of the globular cluster NGC 6397. Inverted grayscale variant.
Original caption: This ancient stellar jewelry box, a globular cluster called NGC 6397, glitters with the light from hundreds of thousands of stars. Astronomers used the NASA/ESA Hubble Space Telescope to gauge the cluster’s distance at 7800 light-years away. NGC 6397 is one of the closest globular clusters to Earth. The cluster’s blue stars are near the end of their lives. These stars have used up their hydrogen fuel that makes them shine. Now they are converting helium to energy in their cores, which fuses at a higher temperature and appears blue. The reddish glow is from red giant stars that have consumed their hydrogen fuel and have expanded in size. The myriad small white objects include stars like our Sun. This image is composed of a series of observations taken from July 2004 to June 2005 with Hubble’s Advanced Camera for Surveys. The research team used Hubble’s Wide Field Camera 3 to measure the distance to the cluster.
Edited Hubble Space Telescope image of the globular cluster NGC 6397. Color/processing variant.
Original caption: This ancient stellar jewelry box, a globular cluster called NGC 6397, glitters with the light from hundreds of thousands of stars. Astronomers used the NASA/ESA Hubble Space Telescope to gauge the cluster’s distance at 7800 light-years away. NGC 6397 is one of the closest globular clusters to Earth. The cluster’s blue stars are near the end of their lives. These stars have used up their hydrogen fuel that makes them shine. Now they are converting helium to energy in their cores, which fuses at a higher temperature and appears blue. The reddish glow is from red giant stars that have consumed their hydrogen fuel and have expanded in size. The myriad small white objects include stars like our Sun. This image is composed of a series of observations taken from July 2004 to June 2005 with Hubble’s Advanced Camera for Surveys. The research team used Hubble’s Wide Field Camera 3 to measure the distance to the cluster.