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FON Astrographic Catalogue Southern Part (FONAC-S)
The catalog of positions and B-magnitudes of stars and galaxies of the southern sky (from -20{deg} to +2{deg}) was created as a part of the FON (Russian abbreviation... -
FON Astrographic Catalogue, Version 3.0
The catalog of equatorial coordinates {alpha} and {delta} and B-magnitudes of stars of the northern sky (from -4{deg} to +90{deg}) was created as a part of the FON project at... -
The APM-North Catalogue
This version is a preliminary adaptation of the APM, covering the Northern sky at high galactic latitudes only. The catalogue APMCAT-POSS1-1.0 is derived from the first epoch... -
Second Cape Photographic Catalogue (CPC2)
The Second Cape Photographic Catalogue (CPC2) is an astrometric, photographic catalog covering the entire Southern Hemisphere to a limiting magnitude of about 10.5. The... -
BVRIc photometry of Stock 8
We present UBVIc CCD photometry of the young open cluster Stock 8 with the aim of studying its basic properties such as the amount of interstellar extinction, distance, age,... -
UBV(RI)c photometry in clusters Tr 1 and Be 11
We present deep UBV(RI)C charge-coupled device (CCD) photometry for the young open star clusters Tr 1 and Be 11. The CCD data for Be 11 are obtained for the first time. The... -
G and K dwarfs UBV(RI)c and ubvy photometry
K dwarfs have lifetimes older than the present age of the Galactic disc, and are thus ideal stars for investigating the chemical evolution of the disc. We have developed several... -
BVI photometry of NGC 2547
We have developed the techniques required to use Naylor's optimal photometry algorithm of to create colour-magnitude diagrams with well-defined completeness functions. To... -
UBV(RI)_c_ photometry of HIP red stars
We present homogeneous and standardized UBV(RI)c photometry for nearly 550 M stars selected from the Hipparcos satellite data base (Cat. ) using the following selection... -
Berkeley 21 BVI photometry
We present CCD BVI photometry of the old open cluster Berkeley 21, one of the most distant clusters in the Galactic anticentre direction, and possibly the lowest metallicity... -
BVRIJHK photometry of red LMC supergiants
(BV)J(RI)C observations for 185 and additional JHK observations for 53 red supergiant candidates in the Large Magellanic Cloud (LMC) are presented. The data have been reduced... -
Edinburgh-Cape Blue Object Survey. Zone 1.
Results for Zone 1 of the Edinburgh-Cape (EC) Blue Object Survey are presented. This zone covers that part of the North Galactic Cap more than ~30{deg} from the Galactic plane... -
UBVRI CCD sequences for wide-field surveys. I.
We present the first results of a campaign to secure deep UBVRI CCD photometric calibration in all UK Schmidt equatorial fields with galactic latitudes |b|<~50{deg}. In this... -
Spectrophotometric standards near DE=+40{deg}
The second stage to compile a list of regional intermediate-brightness spectrophotometric standards has been completed. It includes the spectral energy distribution for 24 stars... -
Multimode delta Scuti stars from ZTF
We obtain the largest catalog of multimode {delta} Sct stars in the northern sky to date using the Zwicky Transient Facility (ZTF) Data Release 20. The catalog includes 2254... -
Contact binaries from CSS DR2
With the continuous development of large optical surveys, a large number of light curves of late-type contact binary systems (CBs) have been released. Deriving parameters for... -
Positions of 5 Uranian satellites from Yunnan obs.
A total of 10,339 positions of the five major Uranian satellites (Ariel, Umbriel, Titania, Oberon and Miranda) were collected at the Yunnan Observatories from 2013 to 2020 with... -
Periodic variable stars from LAMOST DR9
Identifying and classifying variable stars is essential to time-domain astronomy. The Large Area Multi-Object Fiber Optic Spectroscopic Telescope (LAMOST) acquired a large... -
Flares in hot subdwarf & WDs from TESS photometry
Stellar flares are critical phenomena on stellar surfaces, which are closely tied to stellar magnetism. While extensively studied in main-sequence (MS) stars, their occurrence... -
{beta} Cephei pulsating variables from TESS and Gaia
{beta} Cephei pulsating variable (BCEP) stars are the most massive pulsating variable stars in the main sequence, exhibiting both p- and g-mode pulsations. In this study, we...
