source: 1931PWasO..15..209H HUFFER C.M. Publ. Washburn Obs. Univ Wisconsin, 15, part 4, 209-213 (1931) The variation of beta Lyrae. --- Washburn 39cm refractor + potassiusm (blue) photocell --- up to six comp stars, zero-point not described JD del-mag 2424289.769 0.273 2424295.796 0.263 2424299.773 -0.078 2424299.786 -0.084 2424306.760 -0.196 2424306.772 -0.177 2424307.787 0.140 2424307.802 0.138 2424308.730 0.272 2424308.742 0.262 2424319.752 -0.158 2424320.716 0.159 2424320.729 0.164 2424322.684 0.223 2424322.697 0.221 2424328.672 0.266 2424328.692 0.260 2424336.709 0.058 2424336.724 0.052 2424349.692 0.065 2424353.685 0.248 2424353.751 0.271 2424353.764 0.258 2424365.677 0.112 2424365.692 0.106 2424376.637 -0.116 2424376.676 -0.122 2424381.679 0.133 2424381.697 0.131 2424382.678 -0.515 2424382.691 -0.530 2424382.723 -0.545 2424382.728 -0.548 2424384.741 0.014 2424384.757 0.017 2424390.641 -0.020 2424390.654 -0.002 2424410.688 0.046 2424410.711 0.043 2424414.580 0.100 2424414.599 0.095 2424417.599 0.229 2424417.611 0.224 2424422.551 -0.435 2424422.565 -0.446 2424422.578 -0.414 2424422.625 -0.418 2424422.637 -0.391 2424430.619 0.233 2424430.635 0.238 2424433.559 0.160 2424433.572 0.154 2424439.543 0.235 2424439.555 0.236 2424460.523 -0.466 2424460.537 -0.468 2424460.551 -0.482 2424464.556 0.312 2424473.502 -0.506 2424473.517 -0.479 2424473.526 -0.478 2424615.868 -0.577 2424615.928 -0.566 2424617.844 0.184 2424636.742 0.120 2424636.756 0.057 2424637.727 0.234 2424637.743 0.247 2424640.806 -0.139 2424641.758 -0.616 2424641.795 -0.610 2424641.828 -0.607 2424646.835 0.125 2424647.836 -0.069 2424650.712 0.224 2424650.725 0.243 2424651.760 0.314 2424651.773 0.304 2424690.663 0.232 2424691.647 0.122 2424691.758 0.102 2424693.792 -0.577 2424693.806 -0.562 2424696.735 0.287 2424714.783 0.211 2424719.711 -0.457 2424719.749 -0.461 2424756.645 0.147 2424756.660 0.139 2424757.697 -0.540 2424757.717 -0.547 2424758.657 -0.441 2424758.668 -0.453 2424768.574 0.317 2424768.586 0.321