NGC 637

Number of stars per data source

	Reference  128 :   28 stars
	Reference  500 :  176 stars

References

 128

Lasker B.M., Russel J.N., Jenkner H., Sturch C.R., McLean B.J., Shara M.M.

(1990) Astron. J. 99, 2019

The HST guide star catalogue, version 1.0

1990AJ.....99.2019L

 500

Pietrukowicz P., Olech A., Wisniewski M., Kedzierski P., Mularczyk K., Zloczewski K., Starczewski S., Szaruga K.

(2006) Acta Astron. 56, 267

CUriuos Variables Experiment (CURVE). CCD Photometry and Variable Stars in the Field of Open Cluster NGC 637

2006AcA....56..267P