... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel to ESO Headquarters . ... Visits to ESO Sites . ... Architecture at ESO . Collaborations with ESO . ESO Acronyms . ... Educational Material . ... An artist's impression of the debris disc around the white dwarf SDSS J1228+1040 (left) at the same scale as Saturn and its rings (right). While the white dwarf in SDSS J1228+1040 has about seven times smaller diameter than Saturn, it has a mass 2500 times greater. ...

The horn on the lbw receiver was switched from a kildal horn to one designed by german cortes in feb2003. On 11jul03 we did a test comparing tsys vs frequency for both horns. ... The measurements started around 9:30 AST and finished at about 11:20 am. ... Cortes horn tracking ra/dec: 6:40:00/14:12:30 start at 11:10 AST To select the blank sky I used NVSS and looked at 1 degree around the positions to see that there were no strong sources nearby. ... POLA. tsys vs frequency. ...

The silicates that produce the 10 and 18 micron features appear to be broadly similar to terrestrial minerals such as Forsterite and Enstatite. ... Where pre-solar silicate dust grains can be isolated from meteorite material, these also tend to be Mg-rich silicates rather than Fe-rich silicates. ... It has been suggested that the interstellar silicate grains have a different 10 micron feature profile than what is observed for the silicates around evolved stars. ...

... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...

It is possible to piece together the processes that have shaped the observed characteristics of a galaxy by studying its stars in detail. The Large Magellanic Cloud (LMC) is an excellent candidate for this type of study because of its favourable viewing angle and ongoing star formation. I present the results of high-resolution VLT/FLAMES observations of ~80 red giant stars around star cluster NGC 1846, located in the disc of the LMC. ...

... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... What are typical star-to-star distances in globular clusters compared to stellar distances in our region of the galaxy? ... RELATED TOPICS: GLOBULAR CLUSTERS . ... Get instant access to subscriber content on Astronomy.com! ...

... User Guide ] Task: tvcycle Purpose: Cycle through TV channels to compare different images. Categories: visual display TVCYCLE is a MIRIAD task to cycle through TV channels thus allowing different images to be compared. Use button D to exit. ... Key: tvchan List of channels to cycle around. Key: delay Delay in seconds between channel changes. Default is 0.5 s This can be altered with the x-location of the cursor. ... Key: options reverse Default is to loop around the channels. ...

. Sitemap . Contact . Search . Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Use your mouse to look around and up and down. The first part of the Astropark that most people see represents our own Solar System. The Sun and the eight main planets are laid out here, so that you can compare their distances and sizes. We start above with a view of Jupiter looking towards the Sun. Behind us is Saturn. See also: . The Solar System . Other virtual visits . Last Revised: 2015 January 8th .

... Starburst Galaxy Messier 94 . ... Beautiful island universe Messier 94 lies a mere 15 million light-years distant in the northern constellation of the hunting dogs, Canes Venatici. A popular target for earth-based astronomers, the face-on spiral galaxy is about 30,000 light-years across, with spiral arms sweeping through the outskirts of its broad disk. ... Bright Spiral Galaxy M81 . ... The grand spiral galaxy can be found toward the northern constellation of the Great Bear (Ursa Major). ...

... Meta Index / Home Page / Some functions for testing/debugging . This function returns .true. if the given pair of values agree with each other in the given precision (order), or .false. otherwise. LOGICAL(bool) FUNCTION isNearlyEqual(cmp, compared, precision) REAL, intent(in) :: cmp, compared ! or INTEGER INTEGER, intent(in) :: precision END FUNCTION isNearlyEqual . For the pair of the first two arguments, any combination of int8 , int16 , int32 , single and double is allowed. ...

. You can compare any two versions of a file that is under the control of SCCS with the sccsdiff command: /usr/sccs/sccsdiff -r version -r version s. filename . Using this command produces a line by line difference between the two versions of the file. Results are shown in the same format as that produced by the diff command. Examples .

... I'm an apeman, I'm an ape, apeman, oh I'm an apeman I'm a King Kong man, I'm a voodo man, oh I'm an apeman Cause compared to the sun that sits in the sky, Compared to the clouds as they roll by, Compared to the bugs and the spiders and flies I am an apeman. ... Oh what a life of luxury to be like an apeman. ... I'm an apeman, I'm an ape, apeman, oh I'm an apeman I'm a King Kong man, I'm a voodo man, oh I'm an apeman I don't feel safe in this world no more, I don't want to die in a nuclear war. ...

... In principle, two observers on the ground can tell, by comparing the position of the same auroral arc against the background stars. ... The display stretches across Canada; just below it, in the middle of the picture, are the lights of Chicago, next to Lake Michigan. ... 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. ... Auroral Acceleration . ...

... Mass . 17a. Measuring Mass . ... A medium-size (1.25 inch wide) binder clip, as is used in offices to hold papers together--the type made of flat blue steel, with two wire handles. ... The theory predicts that the oscillation period should be proportional to the square root of the oscillating mass, including the mass of the clip. Note that gravity plays no part here: the oscillation period would be the same on the Moon or in zero-g. Denoting square root by SQRT, we have . ...

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... 2009 October 13 . Giant Dust Ring Discovered Around Saturn . ... Explanation: What has created a large dust ring around Saturn? At over 200 times the radius of Saturn and over 50 times the radius of Saturn's expansive E ring , the newly discovered dust ring is the largest planetary ring yet imaged. ... An additional possibility is that the dust ring supplies the mysterious material that coats part of Saturn's moon Iapetus , which orbits near the dust ring 's inner edge. ... About APOD | ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Directory of astronomy web sites. ... Listed Since October 25, 2004 . ... Web Site . http://123world.com/astronomy/index.html . ... Web . www.astronomy.net . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

Next: About this document Up: Multi-Object Spectroscopy Previous: Rebinning . To define your object's and sky regions use DEFINE/MOS . By default it automatically averages ( 20 ) columns around the position ( center of frame ) of the frame and searches for objects in this averaged frame that have an intensity above ( -0.04 ) when compared to a median over ( 5 ) pixels. can be absolute ( > 0) or relative to the median intensity ( < 0). ...

... How to Find Us . ... Take a stroll around the beautiful grounds of the Armagh Observatory Astropark. Armagh Observatory's Astropark is a scale model of the Universe where visitors can walk through the Solar System and into the Milky Way and beyond. The landscaped grounds are dotted with stainless steel scale models of the planets demonstrating how small our planet Earth is compared with some of its neighbouring worlds. ... Find out more about the Armagh Observatory Astropark. CONTACT US . ...