Selection of Open Clusters on Parameters and Available Measurements

This form helps answering questions like: Is there any cluster with right ascension between 5 and 7 hours, north of declination +25 degrees, with a diameter larger than 20 arc minutes and more than 50 stars measured in the uvby system?


	Limits			Select
Parameter	Lower	Upper	Units		A) The kind of comparison:
Right Ascension			in hour and minute			more than	stars
Declination			in degree and minute			less than	stars
Longitude			in decimal degree			between	and	stars
Latitude			in decimal degree		B) The kind of data:
Distance			in parsec		datatype
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 and available observations.
Enter values for the limits relevant to the chosen parameters.
Select one of the three comparison items and enter the relevant limit(s).
Select the type of data you are interested in.
The form usage offers further explanations on its use.

Last update: 27 October 2005