... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... active optics . ...

... 216, Astronomical Data Analysis Software and Systems IX, eds. N. Manset, C. Veillet, D. Crabtree (San Francisco: ASP), 385 . ... A software system for active control of the KPNO 4-meter primary mirror is presented. The system consists of an embedded PC running RT-Linux, controlling a set of A/D and D/A modules. ... The primary mirror is supported by 33 pressurized units. ... The communication with the Telescope Control System is implemented using a KPNO standard ``software router'' package. ...

... International astronauts are those individuals from international space agencies who have trained or served with NASA Astronauts. Astronaut assignments and category definitions (e.g., "active" astronauts, "management" astronauts) are contained in a separate Flight Operations Directorate (FOD) policy letter. Former astronauts are those who are no longer employed by their agency. Active and Management International Astronauts . Astronaut . ... Former International Astronauts . ...

The ESO Very Large Telescope consists of an array of four 8-meter telescopes which can work independently or in combined mode. ... In such a mount the telescope tube moves around a horizontal axis called elevation axis. ... The telescope tube itself consists of a steel structure supporting at the bottom the primary mirror (M1) in its cell, and at the top the M2 Unit by means of metallic beams called "spiders". ... The VLT can operate in either Cassegrain, Nasmyth or Coud focus. ...

... JWST . ... Data . ... Science Blog . ... JWST Science . ... Data Simulation Resources . ... Science Corner . ... Paper abstract:- This work addresses the AGN IR-selection dependency on intrinsic source luminosity and obscuration, in order to identify and characterise biases that could affect conclusions in studies. ... The AGN sample is divided into low and high X-ray luminosity classes and into unobscured (type-1) and obscured (type-2) classes by means of X-ray and optical spectroscopy data. ...

Astronomy Picture of the Day . Io's Active Volcanoes . ... 27.10.1996 . ... Credit Copyright: Galileo Mission , JPL , NASA Explanation: Why is Io green at night? In this just-released nighttime picture of Jupiter 's moon Io , the red spots clearly show Io 's current volcanically active regions . ... This telling picture was taken by the automated Galileo spacecraft currently orbiting Jupiter while Io was in Jupiter's shadow. ... October 1996 . ... Publications with keywords: Io . ...

... May 15, 1998 . TRACE and the Active Sun . Credit: Courtesy CFA , TRACE Team , NASA . ... It shows graceful arcs of intensely hot gas suspended in powerful looping magnetic fields which soar above a solar active region. ... By operating the TRACE instruments during the Sun's increasingly active phase, scientists hope to explore the connections between complex solar magnetic fields and potentially hazardous solar eruptions. ... About APOD > . ... NASA Technical Rep.: ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 27, 1996 . Io's Active Volcanoes . ... In this just-released nighttime picture of Jupiter 's moon Io , the red spots clearly show Io 's current volcanically active regions . ... One hypothesis is that the green glow is caused by a different type of aurora resulting from high-energy particles interacting with Io's volcanic plumes . ...

Semiconductor Home > Products > Mixed Signal and Analog > CCD IMAGERS Family > . TC237, 680- X 500-PIXEL CCD IMAGE SENSOR DATA SHEET . ... The TC237 is a frame-transfer, charge-coupled device (CCD) image sensor designed for use in single-chip black and white NTSC TV, computer, and special-purpose applications requiring low cost and small size. ... 680- X 500-PIXEL CCD IMAGE SENSOR DATA SHEET ERRATA FOR SOCS044 (40 KB) . ... TIMING OF TC237 FRAME TRANSFER CCD IMAGE SENSORS (97 KB) (Abstract) . ...

... REGISTRATION . ... 119991, Leninski prospekt 53, Moscow, Russia . ... From radio to gamma rays results from space and ground based solar observatories . ... The Sun with high temporal and spatial resolution new look from SDO . ... Towards the Sun: InterHelioProbe, Solar Orbiter, PROBA-3, Solar Probe + . ... The Sun as a star: solar cycle and space weather . ... Head: E. DeLuca (SAO, USA), V. Kuznetsov (IZMIRAN, Russia) . ... June 1, 2011 (Wen) . ... Online publication of the workshop's program . ...

The total radiative power output from the hot outer layers of six late-type stars (of different spectral types and luminosity class) is derived via an emission measure technique. This analysis was based on observational data from the spectral range 100A to 3000A obtained as a result of three separate satellite missions, i.e. Hubble Space Telescope, International Ultraviolet Explorer and the Extreme Ultraviolet Explorer. ...

... A2145 Date