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?

	Limits
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

Hints

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