Results 271 to 280 of about 4,162,760 (300)
Some of the next articles are maybe not open access.
Processing of Star Catalog and Star Image
2016Processing of star catalog and star image is the groundwork for star identification. The Star sensor process establishes the three-axis attitude of spacecraft by observing and identifying stars. Thus, star information is indispensable. The star information used by the star sensor process mainly includes the positions (right ascension and declination ...
openaire +1 more source
Star Names, Designations, and Catalogs
2021If you have been an astronomer for any length of time, then you know there are many stars in the sky that have names. Some star names make perfect sense, such as Polaris, the North Star. In most cases, however, star names seem rather unusual and exotic.
openaire +1 more source
Optimization of guide star catalog for daytime star sensors
International Journal of Modern Physics B, 2019Daytime star sensor provides accuracy navigation information to air vehicles near the ground in the daytime by observing stars. It has been an important development of modern star sensors. In order to achieve a high signal-to-noise ratio, daytime star sensors work in the infrared band to avoid interferences from sky background.
Feng Wu +6 more
openaire +1 more source
On the Carbon-Star Status of Five Stars in a New Carbon Star Catalog
Chinese Journal of Astronomy and Astrophysics, 2002We find that five sources listed in the new carbon star catalog are not really carbon-rich objects but oxygen-rich stars, because they all have the prominent 10mum silicate features in absorption and the 1612 MHz OH maser emission or/and the SiO molecular features.
Pei-Sheng Chen, Yi-Fei Gao
openaire +1 more source
Distribution of Points on a Sphere with Application to Star Catalogs
Journal of Guidance, Control, and Dynamics, 1998A new framework is introduced to analyze the spatial distribution of stars in a catalog, namely the Voronoi diagram/Delaunay triangulation. The Voronoi diagram is a partition of the celestial sphere into polygonal cells, one for each star, so that the cell for star P consists of the region on the sphere closer to P than to any other star.
openaire +1 more source
The Guide Star Catalog and related sky surveys
Astrophysics and Space Science, 1994The basic properties and foundations of the Guide Star Catalog (GSC) are presented. Special emphasis is given to the published versions of the GSC, and the project on image compression and distribution of the digitized survey plate scans is mentioned.
openaire +1 more source
Guide Triangle Catalog Generation Based on Triangle Density and Utilization for Star Sensors
IEEE Sensors Journal, 2022Yan Ma, Jie Jiang
exaly
A Catalog of Rotational Velocities of the Stars
Memoirs of the Faculty of Science, Kyoto University. Series of physics, astrophysics, geophysics and chemistry, 1970Akira Uesugi, Ichiro Fukuda
openaire +1 more source
The Construction of Observational Star Catalogs
1966Edgar W. Woolard, Gerald M. Clemence
openaire +1 more source
The Villafranca Catalog of Galactic OB Groups - I. Systems With O2–O3.5 Stars
Astronomy and Astrophysics, 2020Alfredo Sota +2 more
exaly