Sagar, R.; Joshi, U. C.
(1979)
Photoelectric magnitudes and colours in the UBV system have been determined for 50 stars in NGC 6611. The reddening value varies across the cluster from E(B-V) - 0ᵐ.58 to E(B-V) = 1ᵐ.21. The distance modulus to the cluster ...