This service is an extension of the Apparent Places of Fundamental
Stars (APFS) computing exact geocentric positions in both the CIO and
equinox systems to stars from the Gaia DR3 result catalogue.
This service is an extension of the Apparent Places of Fundamental
Stars (APFS) computing exact geocentric positions in both the CIO and
equinox systems to stars from the Gaia DR3 result catalogue.
This service is an extension of the Apparent Places of Fundamental
Stars (APFS) computing exact geocentric positions in both the CIO and
equinox systems to stars from the Gaia DR2 result catalogue.
This service is an extension of the Apparent Places of Fundamental
Stars (APFS) computing exact geocentric positions in both the CIO and
equinox systems to stars from the Hipparcos catalogue.
The archive of AGN spectral observations is obtained on AZT-8
telescope at the Fesenkov Astrophysical Institute (FAI), Almaty,
Kazakhstan. It represents the result of observations for abot 25 years
- from 1970 to 1995. All observations were carried out at AZT-8 (D =
700 mm, F[main] = 2800 mm, F[Cassegrain] = 11000 mm) with a high-power
spectrograph. In 1967-68, on the basis of the image intensifier
(https://doi.org/10.1080/1055679031000084795a) developed and assembled
the spectrograph of the original design in the workshops of the FAI.
To use the spectra, please, download raw .fit file of required object,
date and exposure. The open 'Calibration frames' in Related links and
then use them to calibrate object spectra frames. For more information
about calibration process please visit
https://github.com/ill-i/Spectra-Reduction.
ARI katkat is a catalog of star catalogues
in the spirit of G. Teleki's catalog of star catalogs
(`1989BOBeo.140..131T`_ and references in there). It contains
2573 catalogs suitable for astrometric usage, starting with Flamsteed
(1835) and ending in the 1970ies. For almost all of them, there
is a column description file (as PDF, and unfortunately sometimes in
German) and the digitized content.
.. _1989BOBeo.140..131T: http://ads.g-vo.org/abs/1989BOBeo.140..131T
ARI's "Geschichte des Fixsternhimmels" is an attempt to collect all
astrometrically useful observations from before ca. 1970 in a way
comparable to what has been done to construct the FK* series of
fundamental catalogs. About 7e6 published positions are included.
In GAVO's DC, we provide tables of identified and non-identified stars
together with the master catalog that objects were identified against.
The catalogue ARIHIP has been constructed by selecting the 'best
data' for a given star from combinations of HIPPARCOS data with Boss'
GC and/or the Tycho-2 catalogue as well as the FK6. It provides 'best
data' for 90 842 stars with a typical mean error of 0.89 mas/year
(about a factor of 1.3 better than Hipparcos for this sample of
stars).
This service provides Gaia data (currently DR1, DR2 and EDR3), with full-sky catalogues of high-precision positions down to about 20 mag, as a mirror of the original ESA archive with extra features (e.g., tables and column metadata).