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What is the .SUP File Extension?

.SUP File Extension Description:

The Hallo Northern Sky (HNSKY) is an astronomy program that plots the night sky and shows all the stars, the planets along with the Sun, the Moon, the comets, the asteroids and almost 26,000 deep sky objects. Its main goal is to help the users familiarize themselves with the night sky, thus all objects are presented in their correct orientation and sizes.

The HNSKY is provided with the following databases:

* Deepsky database - contains all the visual descriptions of most deepsky objects;

* Asteroids database - contains all inputs for asteroids;

* Comets database - contains all the orbital elements of comets;

* Supplement database - contains supplemental information on stars, deepsky objects, labels and local horizons.

The Supplement database saves its files with the file extension SUP. These files are flexible as users to enter additional data about stars, deepsky objects, constellation lines, logbook markers, and local horizons can use them. The database is slower than the rest of the HNSKY databases because of their format and because of the large number of objects it contain.

Files with the .sup file extension are written in ASCII text format, which can be edited by the HNSKY editor itself to check their syntax. Below is the general format of the file:










When a file with the .sup file extension is used as a deepsky object, it could be entered in the following format:

02,22.5,0,+42,21,0,101,NGC891,GX; old_position,131,120,20,22

This means that the galaxy NGC891 is at 02:22.5 position right ascension (RA) defined as the longitude on the Earth, and its declination (DEC) is at +42 d 21, defined as the latitude on the Earth. Its brightness is 13.1, its magnitude is 10.1, its size is 12.0 x 2.0 arc minutes, and its PA angle is 22 degrees.

Files with the .sup file extension can be viewed in three modes:

* Deep sky mode - if there is a brightness value given, the entry is displayed as a deep sky object; but if no value is given, the numbers 999 could be entered.

* Star mode - if the brightness value is equal to 0 or there is nothing at the brightness value field or the text description is given, the entry is displayed as a star.

* Line mode - depends on various conditions of brightness value entered if RA/DEC lines or azimuth/altitude lines can be drawn.

Author: Han Kleijn
Author URL:
Related Applications: HNSKY for Windows
Common Path: C:/


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Do you have errors with .SUP files?

The Reason for .SUP files Errors:

.SUP files errors are potential critical Windows errors and are often brought on by a corrupt registry that should be fixed right away to avoid even further damage in other software and/or devices. Dangers include system device failure, blue screen errors and fatal crashes.

.SUP files Errors - Common Symptoms:

.SUP files errors bring on numerous symptoms, including: system locks on start up or shut down, applications lock up, reduced computer performance, internal speaker beeps, problems saving documents, sluggish behaviour and application installation problems.

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