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BVR photoelectric sequences in the PSS
BVR photoelectric photometry and positions are reported for 437 stars in 49 Palomar Sky Survey fields. A relation is derived between the Johnson BVR photometry and the E and O... -
Santiago catalogue of 1105 FK5 stars
The positions in right ascension and declination of 1105 FK5 stars, observed with a Meridian Circle during the period 1979 to 1991, are given. The average mean square error of a... -
Optical positions of 221 radio stars
This catalog contains optical positions of 221 radio stars observed with the Bordeaux automatic meridian circle. The observations were strictly differential, a convenient number... -
Calern Observatory absolute declinations
A regular observational programme with a photoelectric astrolabe have been performed at Observatoire du Calern" (Observatoire de la Cote d'Azur, OCA, {phi}=+43{deg}44'55.011";... -
Yunnan Observatory photoelectric astrolabe catalogue
The positions of 53 FK5, 70 FK5 Extension and 486 GC stars are given for equator and the equinox J2000.0 and for the mean observation epoch of each star which are determined... -
UV-excess quasar candidates
We have developed a procedure (so called PAPA) for measurement of magnitudes (about 0.1mag accurate) and positions (with accuracy better than 0.5arcsec) of all the objects... -
Second Quito Astrolabe Catalogue
The paper contains 515 individual corrections {DELTA}{alpha} and 235 corrections {DELTA}{delta} to FK5 and FK5Supp. stars and 50 corrections to their proper motions computed... -
UBVRI photometry of FKSZ stars
UBVRI photometry in the Kron-Cousins system was observed for 117 stars of the Catalogue of Fundamental Faint Stars (FKSZ stars) in the declination zone 0 to +18{deg}. The... -
Gaia FGK benchmark stars v3
Large spectroscopic surveys devoted to the study of the Milky Way, including Gaia, use automated pipelines to determine the atmospheric parameters of millions of stars. The Gaia... -
Potentially hazardous asteroids observations
The New Astrometric Reduction of Old Observations (NAROO) program is dedicated to the measurement of astrophotographic plates and the analysis of old observations for scientific... -
Milky Way low mass young stars from Gaia EDR3
With an unprecedented astrometric and photometric data precision, Gaia EDR3 provides, for the first time, the opportunity to systematically detect and map, in the optical bands,... -
Gaia EDR3 and Johnson-Kron-Cousins standards
In the era of large surveys and space missions, it is necessary to rely on large samples of well-characterized stars for inter-calibrating and comparing measurements from... -
X-Shooter Spectral Library (XSL). DR3
We present the third data release (DR3) of the X-shooter Spectral Library (XSL). This moderate-high resolution near-UV to near-IR (350-2480nm, R~10000) spectral library is... -
Stellar parameters of the EXPRESS sample
As part of the search for planets around evolved stars, we can understand planet populations around significantly higher-mass stars than the Sun on the main sequence. This... -
Saturnian satellites in the Gaia ref. frame
We present a remeasurement of old photographic plates, providing important raw data for dynamical studies of the Saturnian satellite system. The unprecedentedly accurate... -
EUV estimates from CaII H&K activity
Atmospheric escape is an important factor shaping the exoplanet population and hence drives our understanding of planet formation. Atmospheric escape from giant planets is... -
CARMENES input catalogue of M dwarfs. V.
The relevance of M dwarfs in the search for potentially habitable Earth-size planets has grown significantly in the last years. In our on-going effort of comprehensively and... -
X-Shooter Spectral Library (XSL). DR2
We present the second data release (DR2) of the X-Shooter Spectral Library (XSL), which contains all the spectra obtained over the six semesters of that program. This release... -
Multi-frequency celestial reference frame
We present a celestial reference frame (CRF) based on the combination of independent, multifrequency radio source position catalogs using nearly 40 years of very long baseline... -
Astrometric classification of 647 VLBI sources
We present the result of our Allan standard deviation based classification according to their astrometric stability. The classification is divided into three categories (stable...
