IC 4665

Number of stars per data source

	Reference   23 :   15 stars
	Reference   86 :  685 stars

References

 23

Hackwell J.A., Hecht J.H., Tapia M.

(1991) Astrophys. J. 375, 163

Observations that link infrared cirrus and ultraviolet extinction

1991ApJ...375..163H

 86

Skrutskie M.F., Cutri .M., Weinberg M.D., Schneider S., Carpenter J.M., et al.

(2006) Astron. J. 131, 1163

The Two Micron All Sky Survey (2MASS)

2006AJ....131.1163S