Toute l'astronomie en un site » telescope http://www.astronomag.com Sat, 31 Jul 2010 15:24:20 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Real World: How the Hubble Telescope Is Powered in Space http://www.astronomag.com/hubble-telescope/real-world-how-the-hubble-telescope-is-powered-in-space http://www.astronomag.com/hubble-telescope/real-world-how-the-hubble-telescope-is-powered-in-space#comments Sat, 17 Apr 2010 12:20:16 +0000 admin http://www.astronomag.com/hubble-telescope/real-world-how-the-hubble-telescope-is-powered-in-space In this NASA eClips video segment learn how NASA uses light from the sun to make electricity in order to keep the Hubble Space Telescope powered in space. Learn how batteries store the energy needed to keep the Hubble powered when it is in orbit at night and how solar panels help keep it powered when it orbits in the light. Demonstrations using graphs and mathematical equations help explain what it takes to keep the Hubble powered while in orbit around the Earth.

Duration : 0:7:9


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]]> http://www.astronomag.com/hubble-telescope/real-world-how-the-hubble-telescope-is-powered-in-space/feed 2 Smooth Movement of the Dobson Meade LightBridge 16″ http://www.astronomag.com/meade-telescopes/smooth-movement-of-the-dobson-meade-lightbridge-16 http://www.astronomag.com/meade-telescopes/smooth-movement-of-the-dobson-meade-lightbridge-16#comments Sat, 17 Apr 2010 12:20:14 +0000 admin http://www.astronomag.com/meade-telescopes/smooth-movement-of-the-dobson-meade-lightbridge-16 Alt-Az systems like Dobsonian telescopes may be moved in azimuth (horizontally) and in altitude (vertically) axis. It is important to get a smooth movement in both axis. This way you may easily follow a star or a planet inside the field of view. Here we test the smoothness of these movements.

Music by myself, in order to avoid copyright problems.

Hint: Add “&fmt=18″ (without quotes) at the end of the URL in Youtube to see this video at the best quality.

This high quality equipment is a Dobson Reflector of 406mm in diameter and 1829mm of focal length.

Have a look at my astrophotography pictures here: http://www.awesky.com/ComputerPhysicsLab/

Duration : 0:0:45


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]]> http://www.astronomag.com/meade-telescopes/smooth-movement-of-the-dobson-meade-lightbridge-16/feed 17 NASA | Making Hubble More Powerful http://www.astronomag.com/hubble/nasa-making-hubble-more-powerful http://www.astronomag.com/hubble/nasa-making-hubble-more-powerful#comments Sat, 17 Apr 2010 12:20:11 +0000 admin http://www.astronomag.com/hubble/nasa-making-hubble-more-powerful Want more? Subscribe to NASA on iTunes!
http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434

Or get tweeted by NASA:
http://twitter.com/NASAGoddard

The Hubble Space Telescope would not be able to produce its breathtaking science without the upgraded infrastructure targeted during the HST SM4 mission: Fine Guidance Sensor, Scientific Instrument Command and Data Handling, Soft Capture Mechanism, Batteries, and New Outer Blanket Layers. Along with all new cameras, scientific instruments, the Hubble telescope will work better than it ever has in its lifetime.

For more info: http://www.nasa.gov/mission_pages/hubble/servicing/series/Hubble_space_armor.html

Duration : 0:6:0


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]]> http://www.astronomag.com/hubble/nasa-making-hubble-more-powerful/feed 9 Remote Astrophotography – Tzec Maun Foundation http://www.astronomag.com/astrophotography/remote-astrophotography-tzec-maun-foundation http://www.astronomag.com/astrophotography/remote-astrophotography-tzec-maun-foundation#comments Wed, 14 Apr 2010 11:23:39 +0000 admin http://www.astronomag.com/astrophotography/remote-astrophotography-tzec-maun-foundation Images taken with the remote telescopes at New Mexico Skies & Fair Dinkum Skies, courtesy of the Tzec Maun Foundation.
http://www.tzecmaun.org/

Song: Meeting in the Aisle – Radiohead

To see more of my astrophotography, please visit:
http://www.flickr.com/photos/capella_891/

Featured images:
1 – 47 Tucanae
2 – Barnard’s Galaxy (NGC 6822)
3 – Bubble Nebula (NGC 7635)
4 – Crescent Nebula (NGC 6888)
5 – Christmas Tree Cluster/Cone Nebula Region
6 – The Running Chicken (IC 2944)
7 – Dumbbell Nebula (M27)
8 – Outburst of Comet 17P/Holmes – 11-20-07
9 – Cocoon Nebula (IC 5146)
10 – Crab Nebula (M1)
11 – Eagle Nebula (M16)
12 – Trifid Nebula (M20)
13 – IC 342
Video 1 – Comet 8P/Tuttle and M33 – 12-30-07
14 – Lagoon Nebula (M8)
15 – Helix Nebula (NGC 7293)
16 – The Pleiades (M45)
17 – Silver Coin Galaxy (NGC 253)
18 – Double Cluster (NGC 869/884)
19 – Omega Nebula (M17)
20 – Pinwheel Galaxy (M101)
21 – Pelican Nebula (IC 5070)
22 – Veil Nebula (NGC 6992)
23 – Whirlpool Galaxy (M51)
24 – Omega Centauri (NGC 5139)
25 – Eta Carinae Nebula (NGC 3372)
Video 2 – Flyby of NEO asteroid 2007 TU24 – 1-29-08

Duration : 0:3:13


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]]> http://www.astronomag.com/astrophotography/remote-astrophotography-tzec-maun-foundation/feed 1 The Hubble Telescope Gallery http://www.astronomag.com/hubble-telescope/the-hubble-telescope-gallery http://www.astronomag.com/hubble-telescope/the-hubble-telescope-gallery#comments Wed, 14 Apr 2010 11:23:37 +0000 admin http://www.astronomag.com/hubble-telescope/the-hubble-telescope-gallery Source: http://hubblesite.org/gallery/album/entire/
Acknowledgements for NASA and STScI
Thanks for watching. =)

Duration : 0:4:8


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]]> http://www.astronomag.com/hubble-telescope/the-hubble-telescope-gallery/feed 0 Rebirth Of The Hubble Space Telescope http://www.astronomag.com/hubble-telescope/rebirth-of-the-hubble-space-telescope http://www.astronomag.com/hubble-telescope/rebirth-of-the-hubble-space-telescope#comments Sun, 11 Apr 2010 14:07:36 +0000 admin http://www.astronomag.com/hubble-telescope/rebirth-of-the-hubble-space-telescope Hubblecast 30: The Hubble Space Telescope – Rebirth of an icon.

—
Subscribe to Science & Reason:
• http://www.YouTube.com/Best0fScience
• http://www.YouTube.com/SagansCosmos
• http://www.YouTube.com/FFreeThinker
—

After more than three months of calibration and testing, the NASA/ESA Hubble Space Telescope is re-opening its rejuvenated eyes to begin probing the Universe once again. Dr. J reveals the stunning new images and the fascinating science behind them.

—

Credit:
• ESA/Hubble (M. Kornmesser, Colleen Sharkey & Lars Lindberg Christensen)
• Visual Design & Editing: Martin Kornmesser
• Animations: Martin Kornmesser & Greg Bacon (STScI)
• Web Technical Support: Lars Holm Nielsen, Raquel Yumi Shida
• Written by: Colleen Sharkey & Ivana Horvat
• Host: Dr. J (Joe Liske)
• Narration: Gaitee Hussain
• Cinematography: Peter Rixner
• Script: Lars Lindberg Christensen, Will Gater
• Music: movetwo & John Dyson from the CD Darklight
• STS-125 Footage: NASA
• Executive Producer: Lars Lindberg Christensen
• Directed by: Colleen Sharkey
• Acknowledgement: Ray Villard, Cheryl Gundy, Lisa Frattare, Zolt Levay and Donna Weaver

Dr. J is a German astronomer at the ESO. His scientific interests are in cosmology, particularly on galaxy evolution and quasars. Dr. J’s real name is Joe Liske and he has a PhD in astronomy.

Hubble European Space Agency Information Centre
Garching/Munich, Germany
• http://www.eso.org
• http://www.spacetelescope.org
• http://hubblesite.org
.

Duration : 0:10:33


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]]> http://www.astronomag.com/hubble-telescope/rebirth-of-the-hubble-space-telescope/feed 7 The Meade DS 2080 LNT 80mm GOTO computerised telescope http://www.astronomag.com/meade-telescopes/the-meade-ds-2080-lnt-80mm-goto-computerised-telescope http://www.astronomag.com/meade-telescopes/the-meade-ds-2080-lnt-80mm-goto-computerised-telescope#comments Thu, 08 Apr 2010 17:21:20 +0000 admin http://www.astronomag.com/meade-telescopes/the-meade-ds-2080-lnt-80mm-goto-computerised-telescope A guide to the Meade DS 2080 LNT 80mm GOTO computerised telescope.

As recommended by Sir Patrick Moore! Anyone who has read the great astronomy books by Sir Patrick or watched the Sky at Night will know that he often recommends a good quality 3″ or 75mm refractor as a minimum ideal astronomy instrument. The Meade 80 is a 80mm (or 3.25″ – in old money) refractor so the Meade 2080 generously exceeds Sir Patrick’s advice.

Available at: http://www.scopesnskies.com/prod/Meade/starter-scope/refractor/80NA.html

Duration : 0:6:30


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]]> http://www.astronomag.com/meade-telescopes/the-meade-ds-2080-lnt-80mm-goto-computerised-telescope/feed 2 The Hubble in “Hubble 3D” IMAX http://www.astronomag.com/hubble/the-hubble-in-hubble-3d-imax http://www.astronomag.com/hubble/the-hubble-in-hubble-3d-imax#comments Thu, 08 Apr 2010 17:21:15 +0000 admin http://www.astronomag.com/hubble/the-hubble-in-hubble-3d-imax A short video describing the contributions of Frank Summers and colleagues at the Space Telescope Science Institute to the new IMAX film “Hubble 3D.” The Hubble images are stunningly presented, and so are simulations and data animations contributed by the Advanced Visualization Lab, National Center for Supercomputing Applications, U. of Illinois.

Duration : 0:2:59


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]]> http://www.astronomag.com/hubble/the-hubble-in-hubble-3d-imax/feed 25 Hubble Space Telescope Journey to Galaxies, Universe, Nebulas and Stars with the Sounds of Heaven http://www.astronomag.com/hubble-telescope/hubble-space-telescope-journey-to-galaxies-universe-nebulas-and-stars-with-the-sounds-of-heaven http://www.astronomag.com/hubble-telescope/hubble-space-telescope-journey-to-galaxies-universe-nebulas-and-stars-with-the-sounds-of-heaven#comments Mon, 05 Apr 2010 16:05:17 +0000 admin http://www.astronomag.com/hubble-telescope/hubble-space-telescope-journey-to-galaxies-universe-nebulas-and-stars-with-the-sounds-of-heaven Music from THE SOUNDS OF HEAVEN by Rafael Brom
http://www.marianland.com/music04.html

Eagle Nebula, The Pleiades is one of the most famous open clusters. Table of all 110 Messier objects. A shorter exposure shows less nebulosity. A Spitzer image of the Pleiades in infrared light, showing the associated dust. Credit: NASA/JPL-Caltech. A map of the Pleiades. Star Formation. LH 95 stellar nursery in Large Magellanic Cloud. The Orion Nebula. The Messier 80 globular cluster in the constellation. The giant elliptical galaxy ESO 325-G004. The Spindle Galaxy (NGC 5866), a lenticular galaxy in the Draco constellation. Credit:NASA/ESA. Milky Way Galaxy. the spiral structure of the Milky Way. NGC 1300, viewed nearly face-on. Hubble Space Telescope image. The Sculptor Galaxy. A Hubble Space Telescope (HST) close up view of NGC 253. Credit: HST/NASA/ESA. Florida, USA, taken from NASA Shuttle Mission STS-95 on October 31, 1998. The Antennae Galaxies. Starburst activity in the central region of nearby dwarf galaxy NGC 1569. I Zw 18. Irregular Galaxy IC 10. Large Magellanic Cloud. LH 95 stellar nursery in Large Magellanic Cloud. Credit: NASA/ESA. NGC 1705. Palomar 12, believed to have been captured from the Sag DEG about 1.7 Gya. SagDIG. Sextans A. Small Magellanic Cloud. Coma Cluster. NGC 1427A, an example of an irregular galaxy about 52 Mly distant. NGC 604 in the Triangulum Galaxy. Andromeda Galaxy. The Andromeda Galaxy seen in infrared by the Spitzer Space Telescope, one of NASA’s four Great Space Observatories. Image of Andromeda Galaxy (M31) taken by Spitzer in infrared, 24 micrometres (Credit:NASA/JPL-Caltech/K. Gordon (University of Arizona). As viewed from our position 12.2 billion light years away, the Baby Boom Galaxy is seen to be creating 4000 stars per year. Credit: NASA. Ultraluminous Infrared Galaxy IRAS 19297-0406. supermassive black hole & accretion disk. Credit: NASA/JPL-Caltech. black hole and a main sequence star. Sagittarius A* The Galactic Center as seen by one of the 2MASS infrared telescopes. NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 17,000 parsecs in diameter and approximately 20 million parsecs distant. The Sombrero Galaxy, an example of an unbarred spiral galaxy. M82, the archetype starburst galaxy. I Zwicky 18 (lower left) resembles a newly formed galaxy. Seyfert’s Sextet is an example of a compact galaxy group. Strong gravitational lensing as observed by the Hubble Space Telescope in Abell 1689 indicates the presence of dark matter – Enlarge the image to see the lensing arcs. The galaxies of HCG 87, about four hundred million light-years distant. “Panoramic view of the entire near-infrared sky reveals the distribution of galaxies beyond the Milky Way. An artist’s impression of a growing quasar. Hubble Space Telescope image of nebula M1-67 around Wolf-Rayet star WR 124. SN 1994D in the NGC 4526 galaxy. This composite image shows X-ray (blue) and optical (red) radiation from the Crab Nebula’s core region. Supernova remnant N 63A. Hoag’s Object, a ring galaxy. The Circinus Galaxy, a Seyfert 2 galaxy. Messier 82. NGC 3314. Messier 81. An infrared image of Messier 81 taken by the Spitzer Space Telescope. Mayall’s Object. Sunflower Galaxy. Tadpole Galaxy. Whirlpool Galaxy. Arp 220. Circinus Galaxy. A Hubble Space Telescope (HST) image of the dust disk in front of the nucleus of Centaurus A. Credit: HST/NASA/ESA. The full disk by the Spitzer Space Telescope. Hubble telescope image known as pillars of creation, where stars are forming in the Eagle Nebula. Planetary nebulae, here represented by the Ring Nebula, are examples of emission nebulae. Hourglass Nebula. Optical images reveal clouds of gas and dust in the Orion Nebula. This view is about 2. Infant stars. Trifid Nebula. Veil nebula. M78. IC 2118. Horsehead Nebula. Zeta Orionis Aa/Ab/B. Crab Nebula. Remnant of Tycho’s Nova, SN 1572. Detail of Hubble image. Courtesy of NASA/ESA. SL9 (Shoemaker-Levy). Brown spots mark impact sites on Jupiter’s southern hemisphere. A reddish, asymmetric ejecta pattern. Planet Fomalhaut b (inset against Fomalhaut’s interplanetary dust cloud) imaged by the Hubble Space Telescope’s coronagraph (NASA photo. the planet OGLE-2005-BLG-390Lb . An artist’s conception of extrasolar planet HD 189733 b. rtist’s impression of the pulsar planet PSR B1620-26. A WFPC2 image of a small region of the Tarantula Nebula in the Large Magellanic Cloud. Tarantula Nebula.

Duration : 0:7:30


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]]> http://www.astronomag.com/hubble-telescope/hubble-space-telescope-journey-to-galaxies-universe-nebulas-and-stars-with-the-sounds-of-heaven/feed 16 Meade Telescope http://www.astronomag.com/meade-telescopes/meade-telescope-4 http://www.astronomag.com/meade-telescopes/meade-telescope-4#comments Mon, 05 Apr 2010 16:05:15 +0000 admin http://www.astronomag.com/meade-telescopes/meade-telescope-4 Meade telescope doesn’t rotate properly

Duration : 0:1:10


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