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1
An
Astrometric Analysis of Eta Carinae's Eruptive History ...
Using the results from §4.3.3, the astrometric constraint ellipse is defined as
having a semi-major axis a = 2.9 mas, oriented at PAa = 232◦ and semi-minor
axis b = 1.8 mas, oriented at PAb = 142◦. I can use this approach to “test” the
binary ...
2
Dark Companions of Stars:
Astrometric Commentary on the ...
B. Astrometric Profile of Sproul Refractor The reality of the perturbation in the
observed path of Barnard's Star, or of any other star, may be tested by
establishing the astrometric profile of the telescope over the years. Ideally this is
obtained from ...
3
A Giant Step: From Milli- to Micro- Arcsecond Astrometry ...
We describe a way to compare current relativistic astrometric models accurate to
the micro-arcsecond level. The observed stellar direction can be written as a
function of several parts, linking the astrometric observables to the relativistic
effects ...
International Astronomical Union. Symposium, Wenjing Jin, Imants Platais,
2008
4
Relativity in Fundamental Astronomy (IAU S261): Dynamics, ...
International Astronomical Union 2010 doi:10.1017/S1743921309990573
Spatial correlations in the Gaia astrometric solution Berry Holl1, David Hobbs1
and Lennart Lindegren1 *Lund Observatory, Lund University, Box 43, SE-22100
Lund, ...
International Astronomical Union. Symposium, Sergei A. Klioner, P. Kenneth Seidelmann,
2010
Actually, a coma corrector exists but is not used for high-precision astrometric
work. We shall see (Sect. 5.1.4) that a coma is not necessarily a difficulty for
astrometric measurements. A few other astrometric reflectors have been built
since 1964 ...
6
Working Papers:: Astronomy and Astrophysics Panel Reports
However, the gains in astrometric precision that can be achieved with a
dedicated modem astrometric telescope at a site with excellent seeing should
permit studies with precision as good as 500 microarcsec, thereby bringing a
wider variety ...
Board on Physics and Astronomy, Astronomy and Astrophysics Survey Committee, National Research Council,
1991
7
Astrometric Binaries: Delta Aquilae, Sigma Aquarii, Alpha ...
Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Not illustrated.
8
Hipparcos, the New Reduction of the Raw Data
The astrometric catalogue is presented as a main catalogue with references to
supplementary catalogues for complex solutions. These are the 7- and 9-
parameter solutions and the VIM solutions. The solution type as implemented is
given by ...
9
Analysis of the Photometric and
Astrometric Fidelity of ...
Photometry and astrometry performed with charge coupled devices (CCDs) at the focal planes of large telescopes are indispensable tools of modern observational cosmology, astrophysics and astronomy.
Malek Amir Mahmoud Abunaemeh,
2008
10
Astrometry of Fundamental Catalogues: The Evolution from ...
3.1 Astrometric Space Missions At the close of the 20th century, considerable
improvement of astrometric precision was obtained by transferring the telescope
site into Earth orbit and by employing space techniques for the observation of ...
Hans G. Walter, Ojars Juris Sovers,
2000
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See Earth-crossing asteroid Icarus in closest approach for 75 years
... table gives astrometric Epoch 2000.0 coordinates computed for an observer located in the centre of the British Isles. Parallax will be therefore ... «Astronomy Now Online, 6月 15»
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In total, 586 astrometric and almost as many photometric observations were performed by 27 amateur and professional observers in less than ... «Science 2.0, 5月 15»
How Scientists Figured Out a Comet's Orbit from Photos On the Web
They then put the photos through special astrometric calibration software to figure out what section of the sky each photographer was pointing ... «PetaPixel, 5月 15»
Extended hard-X-ray emission in the inner few parsecs of the Galaxy
To improve our positional accuracy, we derived an astrometric correction for each observation by registering known sources. For the July and ... «Nature.com, 4月 15»
US Naval Observatory releases 228 million-star catalogue
The United States Naval Observatory (USNO) has released the First Edition of its USNO Robotic Astrometric Telescope star catalogue, URAT1. «Astronomy Now Online, 4月 15»
This Week On The Space Show
I participate in the Carnegie Astrometric Planet Search where I created the data reduction pipeline and the calibration for CAPScam. I recently ... «Space Fellowship, 4月 15»
Calling Serious Asteroid Hunters
... is responsible for the collection of astrometric (position) measurements of NEOs and dissemination of those measurements, making Tim the ... «The Planetary Society, 11月 14»
Lights out at U.S. Naval Observatory?
The dome housing the 61-inch Strand Astrometric Reflector sits at the Naval Observatory on West Route 66 in this file photo. «Arizona Daily Sun, 11月 14»
Will Gaia Be Our Next Big Exoplanet Hunter?
... impressive”, said former mission project scientist Michael Perryman, lead author on a report titled Astrometric Exoplanet Detection with Gaia. «Universe Today, 11月 14»
Goodnight everyone, and have a newfangled weekend!
... Lee Gianangelo featuring 18 top flight Los Angeles musicians. They do a terrific remake of a huge hit by War. Enjoy Astrometric Star. Cool! «SouthMilwaukeeNOW.com, 9月 14»