Welcome to the webpage of the semi professional free planetarium program HNSKY for MS Windows, intended for amateur astronomers. This program can control your telescope via the ASCOM or INDI interface, has a comprehensive up to date deep sky database with 30.000 objects and detailed descriptions, a star database with millions of stars and hundreds of Deep Sky Survey images which blends in accurately. Additional the program can access the online version of the Deep Sky Survey, allows online update of the asteroid and comet databases and can search online in professional astronomical databases. Is provided with menu's in 21 languages and it is totally free without any advertisement or restriction!!
Free with 30.000 deep sky objects and the TYCHO2++ 4.5 million star database up to magnitude 12.5. Online access to UCAC4 en NOMAD star catalog or download the complete GSC 1.2 up to magnitude 15 or the USNO UCAC4 up to magnitude 16. The Sun, Moon, the planets and their major moons are all displayed with surface features. Comet and asteroid databases and with hundreds of DSS deep sky images which will blend in at the correct size and orientation. It has an integrated deep sky observations help file with and 21 non-English menus. The MSWindows version contains both 32 bit and native 64 bit versions. With new powerful animation menu. In can control almost any telescope using the ASCOM interface program. Works flawlessly together with programs like EQMOD and MaximDL. Downloading of additional DSS images via the Internet is fully integrated. Just select an area and select download. After a few second the DSS image will pop in HNSKY at the correct size and orientation. The comet or asteroid database can be updated online with just one click. Online database search for objects in the selected area. Numerical integration for asteroids to achieve highest accuracy positions years in the future or past. The error is less then 1" after 10 years !!! So an asteroid orbital elements from 10 years ago will after numerical integration allow position calculation within 1" accurate!! So also 10 years in the future.
HNSKY version 3.2.3 (installer, 63 MB, dated 2016-8-6) This version contains the new .290 stars file format. Installer will replace the d32 files with .290 files!
HNSKY version 3.3ß22 (80mbyte 7z archive, dated 2016-8-8, AMD64 excutable file name is "hnsky". Unpack somewhere at your home folder.
This version contains the new .290 stars file format. You could remove the obsolete .d32 files manually.)
MS Windows version 3.2.3 complete in a rar archive for manual installation (version 2016-8-3) extract (and overwrite if required) these files to the HNSKY program directory or an other. The 64 bit version file is hnsky64.exe.
This version contains the new type .290 stars files. You could remove the obsolete .d32 files manually.Executables for Linux and MS Windows version 3.3ß22 (version 2016-8-8). Executables only, 4 mbytes. For the new type .290 stars files only.
HNSKY version 3.0.0m1, last classic 32 bit version , 64 mbytes 2015-8-8.
HNSKY version 2.4.1 (56 MB, version 2014-7-14),
|More asteroids/minor planets||
For more asteroids you have to download and import the huge uncompressed MPCORB.DAT file from the Minor Planet Center. This file contains the orbital element contains about 710.000 numbered asteroids and size is uncompressed 140 mbytes. Save this file as MPCORB.DAT. Open this file in Wordpad or any editor and keep the first 30.000 asteroids or so and remove the rest. Open the MPCORB.DAT file in the internal HNSKY asteroid editor. HNSKY will then convert format. To make permanent save to HNS_AST1.AST. HNSKY will only read the numbered asteroids.Alternatively conversion of MPCORB.DAT to supplement format can be done with this small DOS program
|Additional stars databases||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
If you only want the UCAC4 up to magnitude 13, download this UCAC4 converted version (64 mbytes) in the D32 format (7 million stars) version 2015-6-7 and extract it in the program directory. For conversion the tool D32conversiont is used.
|GSC: The GSC_ACT
or (catalog 255) GSC 1.2
(catalog 254) of 15 million stars to about magnitude
15 is available at CDS in the compact binary format
If you have an uncompressed GSC 1.1 or GSC_ACT, it can be compressed by the the EXPORT program to the same compact binary format (total 303 MB) as used for the GSC 1.2.
|Obsolete TYCHO-1 star databases, more then 1 million stars, total size 10 MB, 4 Zip files containing 32 x D32 files, version 2000-8-10.|
supplement Dated 2015-1-5 (10 MB) demo
image using 65 mm telescope. Place the supplement
under the HNSKY directory under DOCUMENTS.
HyperLeda_2.440.000_galaxies database (type hnd) Dated 2016-7-135 (26 MB) Unpacked this file is 103 mbytes, so huge. Place this huge deepsky database in the HNSKY PROGRAM directory. You have to select either this one or one of the three deepsky databases.
|World map supplement: World map supplement version 3.0 dated 2000-10-22. World map and 2700 cities with there location and relative brightness. Scale 1 : 5.000.000. See screen shot of version 2.0. Included a conversion program to convert coastlines to a supplement.|
|GCVS 4.1 variable star supplement. Complete 37382 star version. In this supplement the GCVS is displayed as labels so you can easily cross check with Tycho or UCAC2. To get Tycho star info switch off the supplement. (The smaller 7800 star version is included to the basic package)|
|Additional FITS images||Extra large Mars map
(Color 1000x500 pixels) , large Mercury
maps (1440x720 pixels) based on
Mariner 10, SVTS and large Jupiter
maps (Color 600x300 and 1200x450 pixels) .
Use the large maps only if you have a fast computer or
some patience. The planetary FITS files should be placed
in your FITS directory.
45 hand made drawings/sketches (880 Kbytes) of Bill Ferris, Todd Nowlan and Rainer Töpler as FITS files. These can blended inside the map. They should be put in an other directory as the Realsky images otherwise they are blend with the Realsky images.
|Other languages||non-English help files and language modules. If you want create a new language module start modifying the English one .|
|CD covers||Some designs by volunteers: or or or or|
||Star catalog conversion tool with Delphi source D32 conversion. (Dated 2015-6-7, v0.05)|
|SAO PPM conversion too with Delphi source, DAT conversion. (Version 2015-6-2 )|
|SKY_TOASTER, program for conversion to the TOAST projection,with Delphi source. v0.0 2016-3-28|
|Realsky and DSS image viewer using HNSKY DDE link (HNS_REAL) Manual or DDE controlled Realsky image viewer. Click on an object and get the realsky image (you have to own the Realsky or DSS CD's). Click on the Realsky image and to center to get cross at HNSKY at the same place. Version 2.0.0c, Dated 2015-8-11. Here are the instructions and screen shot demo's If your FITS directory in HNSKY is set to the HNS_REAL directory, you will get every result blended in the next screen refresh. HNS_REAL can also be used in batch programs to create several images. Complete with Delphi and C source. Can also batch wise convert FITS to BMP. An other possibility is to control HNS_REAL from the provided Excel table. Contains GETDSS source code version 1.1plus dated 11 august 2015. See also www.projectpluto.com/get_dss.htm|
|HNS_FITS version 1.4.0 dated 2003-9-19. Utility program to create FITS files from BMP files with the correct WCS header by entering the position of two reference stars. Screen shot and describtion. This is a great tools to blend your own pictures inside the HNSKY sky map. With three added example files.|
|Miscellaneous||The following Windows program ORB_DEB is a
simple windows program which calculates the orbital
elements of a minor planet based on three
observations/positions using the Gauss method: Download
ORB_DET.ZIP version 1.02. Contains a win16,
win32 and win64 and Linux (AMD64 bit) version.
Here are some Pascal routines as used inside the HNSKY program. If you have any suggestion to improve them, please let me know: Pascal source code for some astronomical routines and constellation arrays as used in HNSKY program.
|PDF map||Example printed PDF map, format A2, 1200 DPI, azimuthal equidistant projection, from declination +90 degrees to -50 degrees. Stars up to magnitude 8.5 and 253 deepsky objects. Zoom in to 1200% to see deepsky objects.. Text searchable.|