Chinese Ancient Astronomical Fundamental Reference Star Catalog
Publish Time:2024-01-10
The Chinese Ancient Astronomy Fundamental Reference Star Catalog is a comprehensive database of bright stars across the entire sky. It is based on the Hipparcos Catalog and incorporates stellar parameter information from datasets such as HIP2 and XHIP.All data is aligned and calculated to the J2000.0 epoch. The selection criteria for stars include those with a magnitude brighter than 7, resulting in a total of 15,537 stars in the catalog. The star catalog contains coordinate information in the J2000.0 epoch, as well as the latest data on proper motion, radial velocity, and more. This facilitates the retroactive calculation of the spatial positions of stars in different historical periods, providing convenience for the verification and plotting of ancient star catalogs. The star catalog is provided in two formats: FITS and CSV.
Fields in the star catalog:
Field Format Unit Description
HIP J Identifier (HIP number)
RA F12.8 deg ICRS Right Ascension (Epoch = J2000.0)
Dec F12.8 deg ICRS Declination (Epoch = J2000.0)
Vmag F5.2 mag V Magnitude
pmRA F8.2 mas/yr Right Ascension Proper Motion (RA*cos(Dec))
pmDE F8.2 mas/yr Declination Proper Motion
Plx F7.2 mas Trigonometric Parallax
RV F7.2 km/s Radial Velocity
The astropy's SkyCoord.apply_space_motion method can be used to calculate the positions at different time points for the data.
· Data Access ·
 
Data Website
.. caafrc.fits
919.69 kB
..
.. caafrc.csv
902.39 kB
..
♦Introduction♦
Keywords
catalog , ancient astronomy , reference star catalog
Data Volume
1866465 Bytes 2 files
Sharing Method
online
Sharing Scope
Public
DOI
CSTR
VO Identifier
ivo://China-VO/data/ccafrc
♦Contact Author♦
Author
Boliang HE
Email
hebl(at)nao.cas.cn
♦Contact Publisher ♦
Email
support(at)china-vo.org
Phone
+86-10-64807973
Institution
National Astronomical Data Center
♦Tags♦
waveband
Optical
data type
Catalog Data
content level
Research
General
Amateur