NGC 2509

NGC 2509 (OCL 630, ESO 561-SC7) is an open cluster in the constellation of Puppis. The age of this cluster is estimated to be 8 × 10⁹ years and its distance is estimated to be 912±15 pc. Its apparent magnitude is 9.3.

References

• http://prints.iiap.res.in/bitstream/2248/2342/1/paper-2.pdf