Tombaugh 2

Number of stars per data source

	Reference   52 : 2895 stars
	Reference   88 :  707 stars

References

 52

Kubiak M., Kaluzny J., Krzeminski W., Mateo M.

(1992) Acta Astron. 42, 155

Variable stars in the old open cluster Tombaugh 2

1992AcA....42..155K

 88

Phelps R.L., Janes K.A., Montgomery K.A.

(1994) Astron. J. 107, 1079

Development of the galactic disk: a search for the oldest open clusters

1994AJ....107.1079P