Results 101 to 110 of about 30,911 (193)

Astrometry and Relativity

Il Nuovo Cimento B, 2005
General relativistic effects in astrophyiscal systems have been detected thanks to accurate astrometric measurements. We outline some keystones of astrometry such as stellar aberration (argument development during the years 1727-1872); Mercury's perihelion precession (1845-1916); solar disk oblateness (1966-2001); relativistic light deflection (1916 ...
openaire   +2 more sources

A DIFFERENTIAL CATALOGUE OF RIGHT ASCENSIONS OF 263 RRS2 STARS OBTAINED FROM OBSERVATIONS MADE WITH THE ODESSA MERIDIAN CIRCLE IN 1990-1993

Odessa Astronomical Publications, 2017
This catalogue contains the results of 1321 right ascensions observations of 2dj Radio References Stars obtained al Odessa with the Repsold transit circle in 1990-1993.
A. P. Chelombit'ko
doaj   +1 more source

Multi-functional star tracker — future perspectives

Acta Polytechnica, 2011
This paper focuses on the idea of a multi-functional wide-field star tracker (WFST) and provides a description of the current state-of-the-art in this field. The idea comes from a proposal handed in to ESA at the beginning of 2011.
J. Roháč, M. Řeřábek, R. Hudec
doaj  

Determination of field distortion of astronomical telescopes by means of the simultaneous adjustment method

Revista Técnica de la Facultad de Ingeniería, 2011
There are three ways to determine the field distortion produced by astronomical telescopes: a) the direct comparison of measured coordinates with theoretical coordinates derived of an astrometrical catalog of high precision: b) the analysis of the ...
Maria Jeanette Stock Leyton, Jurgen Stock, Ras Patnaik   +2 more
doaj  

Dynamical constraints on the S2 (S0-2) star possible companions

Astronomy & Astrophysics
The centre of the Galaxy harbours a supermassive black hole, Sgr A*, which is surrounded by a massive star cluster known as the S-cluster. The most extensively studied star in this cluster is the B-type main-sequence S2 star (also known as S0-2).
Silva Rodrigo P., Correia Alexandre C. M., Boekholt Tjarda C. N., Garcia Paulo J. V.   +3 more
doaj   +1 more source

Exomoon search with VLTI/GRAVITY around the substellar companion HD 206893 B

Astronomy & Astrophysics
Context. This study presents the first application of high-precision astrometry to search for exomoons around substellar companions, as this field remains largely unexplored. Aims.
Kral Q., Wang J., Kammerer J., Lacour S., Malin M., Winterhalder T., Charnay B., Perrot C., Huet P., Abuter R., Amorim A., Balmer W. O., Benisty M., Berger J.-P., Beust H., Blunt S., Boccaletti A., Bonnefoy M., Bonnet H., Bordoni M. S., Bourdarot G., Brandner W., Cantalloube F., Caselli P., Chauvin G., Chavez A., Chomez A., Choquet E., Christiaens V., Clénet Y., Coudé du Foresto V., Cridland A., Davies R., Dembet R., Dexter J., Drescher A., Duvert G., Eckart A., Eisenhauer F., Förster Schreiber N. M., Garcia P., Garcia Lopez R., Gardner T., Gendron E., Genzel R., Gillessen S., Girard J. H., Grant S., Haubois X., Henning Th., Hinkley S., Hippler S., Houllé M., Hubert Z., Jocou L., Keppler M., Kervella P., Kreidberg L., Kurtovic N. T., Lagrange A.-M., Lapeyrère V., Le Bouquin J.-B., Lutz D., Maire A.-L., Mang F., Marleau G.-D., Mérand A., Mollière P., Monnier J. D., Mordasini C., Mouillet D., Nasedkin E., Nowak M., Ott T., Otten G. P. P. L., Paladini C., Paumard T., Perraut K., Perrin G., Pfuhl O., Pourré N., Pueyo L., Ribeiro D. C., Rickman E., Rustamkulov Z., Shangguan J., Shimizu T., Sing D., Stadler J., Stolker T., Straub O., Straubmeier C., Sturm E., Tacconi L. J., Vigan A., Vincent F., von Fellenberg S. D., Widmann F., Woillez J., Yazici S., Abd El Dayem K., Aimar N., Berdeu A., Correia C., Defrère D., Fabricius M., Feuchtgruber H., Foschi A., Hönig S. F., Joharle S., Laugier R., Lai O., Leftley J., Lopez B., Millour F., Montargès M., Morujão N., Nowacki H., Osorno J., Petrov R., Petrucci P. O., Rabien S., Robbe-Dubois S., Sadun Bordoni M., Sánchez Bermúdez J., Santos D., Sauter J., Scigliuto J., Soulez F., Subroweit M., Sykes C.   +130 more
doaj   +1 more source

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

CHES: An astrometry mission searching for nearby habitable planets. [PDF]

Innovation (Camb), 2022
Ji J, Wang S, Li H, Fang L, Li D.
europepmc   +1 more source

Origin and Evolution of Enceladus's Tidal Dissipation. [PDF]

Space Sci Rev, 2023
Nimmo F, Neveu M, Howett C.
europepmc   +1 more source

Unraveling the complex inventory of biorelevant organics in the plumes of icy moons. [PDF]

Proc Natl Acad Sci U S A, 2023
Kaiser RI.
europepmc   +1 more source