An Extensive Photometric Investigation of the W UMa System DK Cyg

Table 2

The light elements of DK Cyg.

JD	Period	Quadratic term	References
2437999.5838	0.470690550		Binnendijk [6]
2437999.5828	0.470690660	5.390 × 10^−10	Paparo et al. [10]
2437999.5825	0.470690730	5.760 × 10^−11	Awadalla [9]
2451000.0999	0.470692900		Kiss et al. [25]
2437999.5825	0.470690640	5.750 × 10^−11	Wolf et al. [27]
2451000.1031	0.470693909	5.862 × 10^−11	Borkovits et al. [28]
2437999.5961	0.470692060		Present work
2437999.5803	0.470690640	6.284 × 10^−11	Present work