... In particular, near Buford, Wyoming, USA, you could run across the geometric Ames Monument, visible on the right, built to commemorate the financiers of a historic transcontinental railroad across North America. ... Endeavour s Starry Night . ... Jets from Unusual Galaxy Centaurus A . ... Jets of streaming plasma expelled by the central black hole of a massive spiral galaxy light up this composite image of Centaurus A. The jets emanating from Cen A are over a million light years long. ...

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... It might feel like you are sitting still, but right this very second, you are zooming through space at speeds that make the fastest rocket look like its moving at a snail's pace! ... The Earth is also moving along its orbit around the Sun, and the Solar System itself is orbiting around the core of our galaxy, the Milky Way. ... For many years, astronomers have suspected that this rotation is propelled by gas being pulled onto the galaxy from a surrounding envelope of material. ...

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• Los Cielos de Am , The darkest sky and the two galactic hemispheres
• Rapid Changes in the Inner Coma of Comet Hyakutake
• The Very Large Telescope Project

... Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looking at an approaching source see light that is shifted to shorter wavelength (a blueshift). ... By measuring the amount of the shift to the red, we can determine that the bright galaxy is moving away at 3,000 km/sec, which is 1 percent of the speed of light, because its lines are shifted in wavelength by 1 percent to the red. ... Part 2...

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• Spectroscopy
• File Formats Required for Photometry

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "We're light years more advanced than our competition!" ... Even the closest astronomical object, the Moon, is 400,000 kilometers away! ... A beam of light will travel 9,500,000,000,000 kilometers in one year. This distance is defined as a light year ; the distance light travels in a year. ... This is another example of Bad Astronomy; like a light year, a parsec is a unit of distance, not time (to be specific, it equals 3.26 light years) . ...

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• Phil Plait's Bad Astronomy: Q and BA
• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Mad Science

Astronomy Terms - To Help You Study The Universe . Articles | ... Learning about the universe, or the study of astronomy, can be fun for the individual or for the whole family. ... Learning a few simple terms will help you with this fascinating study. ... You will use a telescope or binoculars for your observation of the sky at night. ... Celestial Terms . ... Meteor or a shooting star – the light caused when a meteoroid burns up in Earth's . ... www.astronomy.net . About Astronomy Net | ...

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• Use Light Radited From Stars Orbiting The Black Hole - an Astronomy Net
• Orbiting Light Retrieval? - an Astronomy Net Blackholes Forum Message
• TIME DILATION - an Astronomy Net Observation_reports Forum Message

... STScI-PRC00-35 THE MOTION OF RX J185635-3754 -- THE NEAREST NEUTRON STAR TO EARTH This photograph is the sum of three Hubble Space Telescope images. North is down, east is to the right. The image, taken by the Wide Field and Planetary Camera 2, is 8.8 seconds of arc across (west to east), and 6.6 seconds of arc top-to-bottom (south to north). ... All stars line up in this composite picture, except the neutron star, which moves across the image in a direction 10 degrees south of east. ...

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• Kuiper Belt Objects
• Jupiter's Moon Amalthea
• Educator's Guide to Spotting the Shuttle

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

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• ASP: Up, Up, and Away
• ASP: Star Science in the Autumn Sky
• ASP: There's More to Light Than Meets the Eye

Processing the Viking Orbiter Images . ... Contrast Enhancement . ... Image Processing of Images of the "Face on Mars": A Cautionary Tale . ... In the figures below, the general flow of processing for Viking Orbiter data is outlined, illustrated with the best two images of the "Face"(Figure 1). ... Figure 1: Raw (top) and contrast-enhanced raw (bottom) enlargements of 035A72 (left) and 070A13 (right). ... Figure 3: Increasing the contrast of the "face" images (035A72 (left) and 070A13 (right)). ...

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• Auroral Images
• Pluto and Charon
• Comet Introduction

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Aurora . ... Corona . Fireballs . ... Zodiacal Light . ... The first thing to do is get acquainted with what the night sky looks like. ... The National Schools Observatory web site has very good horizon views of the sky for the current night. ... If the object is moving slowly across the sky then it may be one of the larger satellites. ... Cloudbait Observatory - October 2002 . ... October 2003 Aurora at Armagh . ...

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• Armagh Observatory
• The International Space Station becomes the second brightest object in the
• Terry Mosely's Bulletins

... July 29, 1999 . Hydrogen Blob N88A in the Small Magellanic Cloud . ... Emerging from the cool, dusty interstellar medium in a nearby irregular galaxy known as the Small Magellanic Cloud , N88A hides hot young stars at its core. ... Other regions of ionized hydrogen ( H II regions ) which surround new born stars can be over a thousand light-years across but astronomers now recognize that these small ionized hydrogen blobs contain some of the most massive stars known. ... About APOD > . ...

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• APOD: 2003 August 18 - Bright Lights, Dark City
• APOD: 2004 May 14 - Zubenelgenubi and Friends
• APOD: 2012 May 8 - The Light of Stars

... The Large Magellanic Cloud is a Dwarf Irregular galaxy in orbit around our own Milky Way. It is a large object, several degrees in size, and easily visible to the unaided eye in Southern Hemisphere skies. The LMC is located in the constellation of Doradus at about 5h30m Right Ascension, -68 degrees Declination, and lies at a distance of roughly 50 kiloparsecs (160,000 light years) from Earth. ...

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• What is HISA?
• puppi
• The Pleiades

... Flux density at 1 GHz (/Jy): 2720 . ... 1991, ApJ, 373, 146. ... ADS . ... VLA at 1.4 GHz and 4.8 GHz (both 1".3), for polarisation studies. ... VLA at 1.4 GHz and 4.8 GHz, for proper motion studies. ... 151 MHz observations for bulk expansion studies. ... Chandra observations, showing outer shock. ... Fesen et al. ... Spitzer observations. ... Chandra observations of rim. ... 2006, ApJ, 636, 848. ... 2006, ApJ, 647, L41. -ray line observations. ... Spitzer and Chandra observations for 3-D structure...

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• G120.1+1.4
• G4.5+6.8
• G327.6+14.6

The HST images of GRB 990510. The images were obtained on 8.1 June 1999 (UT), 17.9 June 1999 and 29 April 2000. ... On this page we present the Hubble Space Telescope images of GRB 990510. ... The field of GRB 990510 was imaged by HST on 8.1 June 1999 (UT) 17.9 June 1999 (UT) and 29 April 2000 with the STIS/CCD camera in Open Filter (50CCD) mode. ... The suggestion of a host in the June 1999 image, led us to re-image the field in April 2000. ... The 29 April 2000 image of the field of GRB 990510. ...

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• WFC3 Data Handbook
• Archive for May
• Superluminal Motion in the M87 Jet

... Auroral Currents . ... 25c. Space tether . ... Aurora from Space . ... But the best view is still from space. ... The Canadian scientific satellite Isis-2 (1971) carried an auroral imaging camera and discovered the diffuse aurora, a broad ribbon around the auroral oval, too spread-out to be noticed from the ground. ... Currently, NASA's Polar (1996) collects images of the polar aurora using three cameras--in visible light (sometimes as frequently as 12 seconds apart), in ultra-violet and in x-rays. ...

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• Parallax
• More on Kepler's Second Law
• (S-6) Seeing the Sun in a New Light

Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ... A narrowband filter image centered on this wavelength will then readily reveal these H II regions and hence the current sites of star formation in a galaxy, The luminous blobs that can be seen here are all H II regions . ... NGC 3558 Visual . NGC 3558 Infrared . ...

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• Astronomy HyperText Book: Planetary Motion
• Low Surface Brightness Galaxy Gallery

... Armagh Planetarium . ... Universe . ... Posted on December 3, 2015 | ... Continue Reading.. ... No Comments A spectacular multi-coloured fireball was witnessed in Ireland and Scotland by dozens of people on the evening of 29 November 2015. ... 1 Comment Is this a new dawn for suborbital travel? ... Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

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• Did a Wandering Star Light Up Ancient Skies? | Astronotes
• Finding Your Way in the Milky Way | Astronotes
• Was the 21 September Fireball a Second Moon? | Astronotes

I/146 Positions and Proper Motions (Roeser+ 1988) ================================================================================ Catalogue of Positions and Proper Motions Roeser S., Bastian U. =1988A .. ... 449R ================================================================================ ADC_Keywords: Positional data; Proper motions Description: PPM North gives J2000 positions and proper motions of 181,731 stars north of -2.5 degrees declination. ... The mean epoch is near 1931. ...

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• Positions and Proper Motions - South
• Supplement to the PPM Star Catalogue

... click image to view discuss) . ... This is a quick shot of the near-Earth asteroid 2005 YU55 using four consecutive exposures from the Harvard MicroObservatory robotic telescope in Amado, Arizona, on the night of Nov. ... 10, 2015 . This is Comet Lovejoy C/2014 Q2 as it appeared at about 10:30 pm Saturday, Jan. 10, 2015, from my back yard in Belmont, MA, about 5 miles west of downtown Boston. ... Main image: 0.6 second exposure. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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• ATMoB: Christmas Mystery

... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

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• Meade Sports Optics - Binoculars Instruction Manual
• Meade Sports Optics - How to Select the Right Binocular
• UHTC Coatings: Ultra High Transmission Coatings, Special Coatings, Telescopes,

... 9,A..C P0 Pulsar period (s). ... 9,A, fit n time derivative(s) of DM, n=1.. ... 9 A1_n Projected pulsar semi-major axis of n'th orbit (s)(n=1,2,3; default 1) E_n Eccentricity of n'th orbit (n=1,2,3; default 1) T0_n Epoch of periastron passage of n'th orbit (MJD) (n=1,2,3; default 1) TASC Epoch of ascending node passage (MJD) PB_n Period of n'th orbit (days) (n=1,2,3; default 1) OM_n Longitude of periastron passage, n'th orbit (deg) (n=1,2,3; default 1) FB ...

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• Introduction to Astrometry
• ATNF Media Release - December 1, 1998
• correlator:faults [ATNF VLBI Wiki]