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Radio-optical Reference Catalog, Version 1 (RORC-1)
The fundamental celestial reference frame (CRF) is based on two catalogs of astrometric positions: the third realization of the International Celestial Reference Frame (ICRF3),... -
A sample of 7146 M or K-dwarfs from KIC and Gaia
The planet-metallicity correlation serves as a potential link between exoplanet systems as we observe them today and the effects of bulk composition on the planet formation... -
Radial Velocities of binary population in M67
We present and analyze 120 spectroscopic binary and triple cluster members of the old (4Gyr) open cluster M67 (NGC2682). As a cornerstone of stellar astrophysics, M67 is a key... -
Identification of RR Lyrae stars from the DES
Many studies have shown that RR Lyrae variable stars (RRL) are powerful stellar tracers of Galactic halo structure and satellite galaxies. The Dark Energy Survey (DES), with its... -
Properties of variables in the NGC 1846 field
Intermediate-age (IA) star clusters in the Large Magellanic Cloud (LMC) present extended main-sequence turn-offs (MSTO) that have been attributed to either multiple stellar... -
Spectroscopy and HST photometry in Westerlund 2
We present a spectroscopic and photometric determination of the distance to the young Galactic open cluster Westerlund 2 using WFPC2 imaging from the Hubble Space Telescope... -
M31 Cepheid disk sample of 1st year of PS1
We present a sample of Cepheid variable stars towards M31 based on the first year of regular M31 observations of the PS1 survey in the r_P1 and i_P1 filters. We describe the... -
A Spitzer view of NGC 2264
We have performed mid-IR photometry of the young open cluster NGC 2264 using the images obtained with the Spitzer Space Telescope Infrared Array Camera and Multiband Imaging... -
Galactic radio compact HII regions at 1.4GHz
We use a new Very Large Array Galactic plane catalog at 1.4GHz (Cat. ) covering the first and second Galactic quadrants (340{deg}<=l<=120{deg}, |b|<=0.8{deg} with... -
Optical ident. of BATC Sky Survey X-ray sources
We present optical candidates for 75 X-ray sources in a 1deg^2^ overlapping region with the 1997 medium-deep ROSAT survey by Molthagen et al. (1996, Cat. ). These candidates are... -
The UZC-SSRS2 group catalog
We apply a friends-of-friends algorithm to the combined Updated Zwicky Catalog (UZC, Cat. )and Southern Sky Redshift Survey (SSRS2, Cat. ) to construct a catalog of 1168 groups... -
Nearby poor clusters of galaxies catalog
A catalog of 732 optically selected, nearby poor clusters of galaxies covering the entire sky north of -3{deg} declination is presented. The poor clusters, called WBL clusters,... -
Cross identifications in NGC 1502
In studying this region Purgathofer (1964AnWie..26...37P) [the SIMBAD numbering], Hoag et al.(1961PUSNO..17..343H), and Dombrovskii and Hagen-Thorn (1964TrLen..20...75D) each... -
CCD photometry of open cluster M67
We present a CCD photometric survey of the central one-half degree of the old open cluster, M67, in U, B, V, and I colors to magnitude V=20. Extensive comparison of our... -
1412 MHz catalogue of Westerbork survey. II
A deep multicolor optical identification program is presented for a complete sample of 302 radio sources that were observed with the Westerbork Synthesis Radio Telescope within... -
Catalogue of X-ray binaries
We present a catalogue of high-mass X-ray binaries. The catalogue is an updated version of the catalogue of van Paradijs (1995, Cat. ). The new high-mass catalogue contains 130... -
ROSAT GPS optical identification
We report on optical searches in the error circles of 93 ROSAT survey sources located at low galactic latitudes (|b|<20{deg}). These sources were extracted from the ROSAT... -
UBV photometry of NGC 2323
UBV and DDO photoelectric photometry in the field of the open cluster NGC 2323 is presented. The analysis yields 109 probable members; one of them being a red giant, and 3... -
LH 47 UVBRI photometry
Table 3 lists the final photometric data of our observations. The UBVRI observations were done with the 1.54m Danish telescope at ESO on October 3rd and 4th, 1992. The CCD was... -
Galaxies in the "zone of avoidance". III.
As the third part in a series of papers on galaxies in the "zone of avoidance" (ZOA) of the Milky Way we present a compilation of 1161 galaxies discovered during a systematic...
