Results 11 to 20 of about 4,162,760 (300)
USNO Bright Star Catalog, Version 1 [PDF]
The Astronomical Journal, 2022 Abstract The USNO Bright Star Catalog (UBSC) is a new astrometric catalog of the 1423 brightest stars covering the entire sky, which is published online. It is nearly complete to V = 3 mag except for three stellar systems. A combined astrometric solution of the Hipparcos Intermediate Astrometry Data and two dedicated ground-based ...
Norbert Zacharias +5 more
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A Voting-Based Star Identification Algorithm Using a Partitioned Star Catalog
Applied SciencesWith the rapid advancement of aerospace technology, the maneuverability of spacecraft has increasingly improved, creating a pressing demand for star sensors with a high attitude update rate and high precision. Star identification, as the most complex and
Xu He +5 more
doaj +2 more sources
An Ap Star Catalog Based on LAMOST DR9
The Astrophysical Journal, 2023 We present a sample of 2700 Ap stars in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) DR9 catalog. The candidates are first selected to be in a temperature range typical of Ap stars by using the BP − RP color index from Gaia DR3.
Fangfei Shi +4 more
doaj +3 more sources
Investigation of the Guide Star Catalog
Open Astronomy, 1997 Malkov O. Y., Smirnov O. M.
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A Galactic O Star Catalog [PDF]
The Astrophysical Journal Supplement Series, 2004 We have produced a catalog of 378 Galactic O stars with accurate spectral classifications which is complete for V<8 but includes many fainter stars. The catalog provides cross-identifications with other sources; coordinates (obtained in most cases from Tycho-2 data); astrometric distances for 24 of the nearest stars; optical (Tycho-2, Johnson, and ...
Maíz-Apellániz, J. +3 more
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Catalog of Galactic β Cephei Stars [PDF]
The Astrophysical Journal Supplement Series, 2005 We present an extensive and up-to-date catalog of Galactic Beta Cephei stars. This catalog is intended to give a comprehensive overview of observational characteristics of all known Beta Cephei stars. 93 stars could be confirmed to be Beta Cephei stars. For some stars we re-analyzed published data or conducted our own analyses.
Stankov, Anamarija, Handler, Gerald
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Precision Vs. Accuracy in Star Catalogs [PDF]
Symposium - International Astronomical Union, 1995 As better precision is achieved and more sophisticated reduction methods are created previously invisible biases surface. This has been especially true in astrometric Schmidt plate work. The problem of their amelioration is not fully solved and precision per se is meaningless in the presence of poor accuracy of comparable amplitude.
L. G. Taff, J. E. Morrison, R. L. Smart
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A Catalog Of Reference Stars For New Reductions Of The Astrographic Catalog Plates [PDF]
Symposium - International Astronomical Union, 1988 A high density reference star catalog is being compiled at the U. S. Naval Observatory for the purpose of making new reductions of the Astrographic Catalog. The catalog will be a replacement to the SAO catalog and will be derived from the large photographic catalogs and the modern meridian circle catalogs.
Thomas E. Corbin, Sean E. Urban
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A Star Catalog for the Open Cluster NGC 188 [PDF]
Publications of the Astronomical Society of the Pacific, 2004 We present new BVRI broad-band photometry for the old open cluster NGC188 based upon analysis of 299 CCD images either obtained by us, donated by colleagues, or retrieved from public archives. We compare our results on a star-by-star basis with data from eleven previous photometric investigations of the cluster.
Stetson, Peter B. +2 more
openaire +3 more sources
Redshift distribution of gamma-ray bursts and star formation rate [PDF]
, 2006 Aims. The redshift distribution of gamma-ray bursts collected in the BATSE Catalog is compared with the star formation rate.We aim to clarify the accordance between them. We also study the case of comoving number density of bursts monotonously increasing
Bagoly, Zsolt +18 more
core +1 more source