FON Astrographic Catalogue (FONAC, Version 2.0) containing more then 2.0 million stars (J2000, epoch 1991.25)
Short Name:
FONAC_Version2.0
Date:
20 Feb 2014 21:58:06
Publisher:
Nikolaev Astronomical Observatory
Description:
The FONAC 2.0 is a compiled catalogue of positions, proper motions and photometric data for 2,005,137 stars between declinations of +90° and -2°. The mean epoch of positions is 1988.19. The catalogue was compiled using a new reduction of measurements for more than 1700 plates, which were obtained with the wide-angle astrograph of the Main Astronomical Observatory in Ukraine within the FON project. The acronym FON (Russian, Ukrainian) stands for Photographic Survey of the Northern Sky. The ACT Reference Catalogue as well as the Guide Star and USNO A2.0 catalogues were applied for the reductions of positions and determination of photometric characteristics of stars. Median precision of the FONAC data are ±200 mas, ±3 mas/year and ±0.18 mag in positions, proper motions and magnitudes of stars, respectively.
NAO is one of the oldest observatories in Eastern Europe. It was founded in 1821 as a Naval Observatory. In 1912 it became Nikolaev department of Pulkovo Astronomical Observatory. In 1992 it became an independent research institution in Ukraine, and it has become Research Institute since 2002. At present the Observatory is subordinated to the State Committee for Science, Innovation and Information.
The Observatory is located in the central part of Nikolaev at an altitude of 52m above sea level. The geographic coordinates are longitude 31o58' E, and latitude 46o58' N.
Positions of Mars obtained in Nikolaev Astronomical Observatory
Short Name:
Mars_pos
Date:
05 Dec 2018 17:51:36
Publisher:
Nikolaev Astronomical Observatory
Description:
Observations of Mars were carried out with the Zonal Astrograph at Nikolaev Astronomical Observatory. The mean period of observations in opposition was 156 days. The orbits of Mars and Earth were covered 7.3 and 3.8 times respectively. After defining more exactly some computational elements and the planet's phase, 441 positions were obtained in ICRS system. Coordinates of reference stars were taken from Hipparcos and Tycho catalogues, and their proper motions were taken from the ACTRC catalogue. The standard errors in right ascension and declination are ±0."21 and ±0."22 respectively, in accordance with accuracy estimations of the Institute of Applied Astronomy of the Russian Academy of Science. These standard errors are the best among all known photographic observations of Mars. Topocentric right ascension, declination in ICRS system (J2000.0), and Julian Days (UTC) are given in the table.
