Selection of Open Clusters on Parameters

This form helps answering questions like: Is there any cluster with right ascension between 5 and 7 hours, north of declination +25 degrees and with a diameter larger than 20 arc minutes?

Parameter Lower Upper Units
Right Ascension in hour and minute
Declination in degree and minute
Longitude in decimal degree
Latitude in decimal degree
Distance in parsec
Distance modulus in magnitude
Colour excess in magnitude
Age in logarithm of the age
Distance Z in parsec
Diameter in minute of arc


This form offers the possibility of selecting clusters on the basis of their parameters.
Enter values for the limits relevant to the chosen parameters.
The form usage offers further explanations on its use.

Last update: 20 December 1997