In this article we are going to show the results of the comparision between IRIS and Postgress when handling Astronomy data.

Introduction

Since the earliest days of human civilization we have been fascinated by the sky at night. There are so many stars! Everybody has dreamed about them and fantasized about life in other planets.

Astronomers have been identifying and classifying stars since many centuries ago. There are star catalogues compiled in Mesopotamia and Egypt from the 2nd millennium BC [1]. In modern times there have been two main catalogues: Hipparcos [2] and Gaia [3]. Both are the E