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gri photometry of variables in NGC 4258
We present results of a ground-based survey for Cepheid variables in NGC4258. This galaxy plays a key role in the Extragalactic Distance Scale due to its very precise and... -
2MASS galaxy group catalog
A galaxy group catalog is built from the sample of the 2MASS Redshift Survey almost complete to K_s_=11.75 over 91% of the sky. Constraints in the construction of the groups... -
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... -
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... -
Gaia DR1 and OGLE variable stars
We present a comparison of the Gaia DR1 samples of pulsating variable stars - Cepheids and RR Lyr type - with the OGLE Collection of Variable Stars aiming at the... -
Very low mass stars in Praesepe
We present the results of a deep proper motion survey of a 19 square degree area of the Galactic open cluster Praesepe. Details of the astrometric and photometric reductions are... -
Census of Rho Oph candidate members from Gaia DR2
The Ophiuchus cloud complex is one of the best laboratories to study the earlier stages of the stellar and protoplanetary disc evolution. We constructed a control sample... -
The HELLAS2XMM survey. VIII
We present the results of the photometric and spectroscopic identification of 110 hard X-ray selected sources from 5 additional XMM-Newton fields, nearly doubling the original... -
Photometry in field of RX J004404.8+411820
We propose the first association of an optical counterpart with a luminous supersoft X-ray source in M31, RX J0044.0+4118, observed with ROSAT in July 1991. The PSPC position is... -
HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index
New Cross Index is constructed on the basis of data analyse of basic catalogs: BSC5 (), Hipparcos () and CSI (). The full list of the stars with HD-number and Bayer-Flamsteed... -
HD identifications for Tycho-2 stars
We present identifications in the Tycho-2 Catalogue (), for 99.8 per cent of the stars in the Henry Draper Catalogue () and for 96 per cent of the Henry Draper Extensions (, )... -
HD,HDE,DM Identifications in Open Clusters
The catalog is a compilation of cross-identifications between the numbering system of Mermilliod (1978) for stars in open clusters and the numbering systems of several other... -
HD-DO Cross Index
This is primarily a machine-readable version of the Dearborn Observatory (DO) Catalogue of Faint Red Stars (Lee et al. 1943, 1944, and 1947, Cat. ). It is a result of a survey... -
SAO-HD-GC-DM Cross Index (ADC 1983)
The catalog is an updated, corrected, and extended version of a table of correspondences originally prepared by Morin (1973). The individual data corrections, additions, and... -
H-alpha Stars in Northern Milky Way
The catalogue contains 4174 stars in the Northern Milky Way, in the range 32{deg}<l<214{deg}, -10{deg}<b<+10{deg}, having the H line in emission. The HBH list (main... -
Uccle AC Zone Data Reduced to ACRS
The U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system... -
Bordeaux AC Zone Data Reduced to ACRS
The U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system... -
Paris AC Zone Data Reduced to ACRS
The U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system... -
Vatican AC Zone Data Reduced to ACRS
The U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system... -
Oxford 2 AC Zone Data Reduced to ACRS
The U.S. Naval Observatory is in the process of making new reductions of the Astrographic Catalogue (AC) using a modern reference system, the ACRS, which represents the system...
