HNSKY planetarium program

        Local star databases Name Abbreviation Magnitude limit Colour / Mono Type Size Maximumfieldin HNSKY Proper motion Description and download link TYC++ TYC 12.5 Mono Local files, native 290-10 format 45 MB 360° No, epoch2017 Native HNSKY star database up to magnitude 12.5 containing 4.7 million stars. […]

 
     
Local star databases
Name Abbreviation Magnitude
limit
Colour / Mono Type Size Maximum
field
in HNSKY
Proper
motion
Description and download
link
TYC++ TYC 12.5 Mono Local files, native 290-10 format 45 MB 360° No, epoch
2017 Native HNSKY star database up to
magnitude 12.5 containing 4.7 million stars. Compilation from TYCHO-2
& UCAC4. Included with the program and installed. TUC TUC 15 Mono Local files, native 290-9 format 341 MB  360° No, epoch
2017 Native HNSKY database up to
magnitude 15 containing 39 million stars. Compilation from TYCHO-2 and
UCAC4. Contains the Tycho and UCAC star
identifiers/designation. 

Download: RAR
file
or  RAR
file
 Unpack in the program directory, typically
c:program fileshnsky or for Linux /opt/hnsky.

GAIA DR2
V16  16
V-magnitude Colour Local files, native 290-6 format 346 MB  360° No, epoch
2022 Native HNSKY database up to Johnson-V magnitude
16 , containing 60 million stars. Magnitude is the calculated
Johnson-V magnitude and colour information (GBp-GRp) is
provided. A 455 bright Tycho2 stars are added for
completeness.

Download: Windows
installer
or Debian
package
or ZIP
file
or  RAR
file
..
Unpack in the program directory, typically c:program
fileshnsky or for Linux /opt/hnsky.
 Provided by  Sourceforge.

Recommended for visual observers.

GAIA DR2
G17 17
BP-magnitude Mono Local files, native 290-5 format 503 MB  360° No, epoch
2022 Native HNSKY database up to
photographic magnitude 17  containing 105 million stars.
Magnitude is the unmodified Gaia BP. A 455 bright Tycho2 stars are
added for completeness. Unpack in the program directory, typically
c:program fileshnsky or for Linux /opt/hnsky.

Download: Windows
installer
or Debian
package
or ZIP
file
or RAR
file
. Unpack in the program directory, typically c:program
fileshnsky or for Linux /opt/hnsky. Provided
by  Sourceforge.

Recommended for 
astrophotographers
.

Gaia DR2 V17 17
V-magnitude Colour Local files, native 290-6 format 695 MB  360° No, epoch
2022 Native HNSKY database up to Johnson-V magnitude 17 ,
containing 121 million stars. Magnitude is the calculated Johnson-V
magnitude and colour information (GBp-GRp) is provided. A 455
bright Tycho2 stars are added for completeness.

Download: Windows
installer
or Debian
package
or ZIP
file
or RAR
file
.
Unpack in the program directory, typically c:program
fileshnsky or for Linux /opt/hnsky.
 Provided by  Sourceforge.

Recommended for visual observers.

GAIA DR2 G18 18
BP-magnitude Mono Local files, native 290-5 format 996 MB  360° No, epoch
2022 Native HNSKY database up to photographic magnitude
18 containing 208 million stars. Magnitude is the unmodified
Gaia BP. 455 bright Tycho2 stars are added for completeness.
Unpack in the program directory, typically c:program
fileshnsky or for Linux /opt/hnsky.

Download: Windows
installer
or ZIP
file
or RAR
file
. Unpack
in the program directory, typically c:program
fileshnsky or for Linux
/opt/hnsky. Provided by  Sourceforge.

UCAC4 UC4 16 Mono Local files, external USNO
format 8.4 GB 2.6×1.3° Yes UCAC4:You can download the 113
million stars, 8.5 Gbytes large USNO
UCAC4
from
ftp://cdsarc.u-strasbg.fr/cats/I/322A/UCAC4/
HNSKY can access
this catalog directly. Download Z001 to Z900 from the U4b directory and
add to the same directory file u4index.unf from U4i. This UCAC4 and
Nomad are the catalogues where HNSKY will use proper motion for maximum
accuracy. See HNSKY UCAC
screenshots
. Online
catalogues
Name Abbreviation Magnitude
limit
Colour / Mono Type Size Maximum
field
in HNSKY
Proper
motion
Description UCAC4 UC4 16 Mono online – 2.6×1.3° Yes The USNO UCAC4 includes positions,
proper motions and magnitudes for 113 million objects Gaia DR2 G 21 Colour online – 1.4×0.8° Yes Gaia DR2 Nomad N 21 Mono online – 1.4×0.8° Yes NOMAD is merged catalog compiled by
the USNO, with positions and magnitudes for 1.1 billion stars from
several source catalogs, including Hipparcos, Tycho-2, UCAC 2, and
USNO-B 1.0 PPMXL 20 Mono online – 1.4×0.8° Yes PPMXL is a catalog of positions, proper motions, 2MASS-
and optical photometry of 900 million stars and galaxies, aiming to be
complete down to about V=20 full-sky. It is the result of a
re-reduction of USNO-B1 together with 2MASS. URAT U 18.5 Mono online – 1.4×0.8° Yes By USNO, northern sky only, extends
down to Declination -15°.228 million objects

Source Article

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