Magnetic field measurements onboard the Interball Tail spacecraft are carried out by the FM-3I instrument which consists of two flux-gate magnetometers covering two different ranges: [-200, +200] nT and [-1000, +1000] nT. Besides scientific goals, the FM-3I experiment data is used to perform the attitude control of the Interball Tail spacecraft. ... August 22, 1995 . ... October 18, 1995 . Top of the page . ... Back to the Interball Home Page . ...

... Telescopes . ... The spectrograph is installed in the Nasmyth focus of the BTA telescope, the equivalent focal length is 186 m (F/31). ... The preslit device unit is marked by number 3. ... Fig. ... slit unit of the MSS, 4.1 ? ... The spectrograph slit unit consists of a mirror that redirects the light beam from the Z axis and from the calibration path at an angle of 65њ to the axis of the telescope focus into the slit, the order separation filter, the block of the slit and the shutter (Item 4 in...

... Solar Space Experiments in LPI . ... The main goal of the TESIS is to provide complex observations of solar active phenomena from the transition region to the inner and outer solar corona with high spatial, spectral and temporal resolution in the EUV and Soft X-ray spectral bands. ... Solar EUV Coronagraph (SEC), based on the Ritchey-Chretien scheme, to observe the inner and outer solar corona from 0.2 to 4 solar radii in spectral band 290-320 A . ... 2 arc. sec./pix . ... Backside-CCD 2048*2048 pix...

RECREATIONAL TELESCOPES . ... TELESCOPES . ... Home Products Telescopes Spotting scopes ASTELE™ 95 . ... The ASTELE? 95 is a versatile astronomical telescope, spotting scope and telephoto lens that can be used for astronomy, target spotting, bird watching, nature studies etc. ... This design uses a meniscus optical correcting lens which produces the highest possible quality image with it’s primary mirror, and which seals the telescope from dust, dirt, etc., contaminating the optics of this instrument. ...

The telescope of Galilei was invented in 1609. Telescope (from tele ... and scope ) is an astronomic instrument for the celestial luminaries study on their electromagnetic radiation. The telescopes are divided into gamma-telescopes, X-rays and ultraviolet, optical, infrared and radiotelescopes. ... The first astronomic observations with telescopes (optical refractor) were carried by Galilei in 1609. Back . ...

The 24-inch (0.6-meter) Ritchie-Chretien research telescope was manufactured by RC Optical Systems and installed in August 2006. ... Spacers are used to put the camera or other instruments at the proper position, and an encoded focus motor moves the focal plane 5 microns per encoder count. ... The telescope uses an Apogee U16M CCD camera with a 4096x4096 array of 9 micron pixels which oversample the seeing and permit very accurate photometry and imaging over a wide dynamic range. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . Search the site . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Unless you've been under a rock the past few days, you've heard that the Mars Pathfinder landed safely on the surface of Mars on Friday night. ... When it was about 30 or so meters above the surface, the probe, now encased in giant airbags, cast off the parachute and fell freely for the last few meters. ... 15,000,000 . ...

Copies of The Nine Planets are maintained at several dozen different locations around the world in addition to my primary site at SEDS. ... You may find it faster to access one of the mirror sites that's near to you. ... The Nine Planets has been translated into French , Spanish , Italian , Polish , Portuguese , Slovenian, Norwegian , French , Dutch , Danish, German , Chinese, and Japanese . ... This mirror and a Dutch translation of TNP are maintained by Guido Hemeleers . ... Mirrors .. ...

... It was with this spirit that Norman Oberle suggested that area amateurs should have the benefit of a large aperture (25 inches or larger) telescope with sufficient focal length for excellent visual work. ... Norm Oberle and Jim Thomas spent 2,000 hours grinding and polishing to work the mirror into an oblate spheroid. ... Norm worked with Jim Thomas in a basement workshop. ... The Richland club is situated in the Hidden Hollow camp ground, and has long held meetings in the clubhouse on the grounds. ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

The Navy Prototype Optical Interferometer . Articles | ... John Huggins . ... The white buildings house a type of telescope called a siderostat. Each houses a 0.5 meter mirror which collects the starlight and sends it to a mirror system which guides the light to a central building. ... After the starlight hits the siderostat mirrors, additional mirrors guide the light to a feedbeam tube system. ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... SAI CAS . ... Catalog Access Services . ... This site is about the Virtual Observatory project at the Sternberg Astronomical Institute, Moscow University ( SAI MSU ). We provide a public access to the growing set of astronomical services developed by the SAI RVO development team in accordance with the Virtual Observatory standards. ... We provide access (programmatic and interactive) to the all major and biggest astronomical catalogs (about 4 billions objects total) as well as other web-services. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualitГїs . ... des tests d'instruments sans concession . ... Ciel et Espace teste rГїguliГЕrement les instruments dв?Tastronomie du marchГї afin dв?Tinformer les astronomes amateurs de la qualitГї de ces instruments, tant sur le plan optique que mГїcanique. ... Module Pentax 0-GPS1, logiciel EOS CamГїra Movie Record : Des reflex douГїs pour le ciel . ... TГїlescope Celestron CGEM 1100 HD : TaillГї pour le ciel profond . ...

... What causes the mysterious gamma-ray bursts? Indicated in this Hubble Space Telescope exposure of an otherwise unremarkable field in the constellation Crater, is the dwindling optical afterglow of a gamma-ray burst first detected by the Beppo-SAX satellite on 2001 December 11. ... NGC 4414: A Flocculent Spiral Galaxy . ... The above true color image of flocculent spiral galaxy NGC 4414 was taken with the Hubble Space Telescope to help answer this question. ... Centaurus Galaxy Cluster in X Rays . ...