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Measurements of 10 Scarcely Observed Pairs
Matthew B. James, Graeme L. White, Roderick R. Letchford +1
Separation () and Position Angle (PA) measurements are reported of 10 pairs which measures where last reported in the WDS +20 years from epoch of observation 2021.066. Measureme…
High Precision Calibration Pairs for Northern Lucky Imaging
Matthew B. James, Graeme L. White, Roderick R. Letchford +1
Presented here is list of 50 pairs quasi-evenly spaced over the northern sky, and that have Separations and Position Angles accurate at the milli-arcsec, and milli-degree level. Th…
High Precision Calibration Pairs for Southern Lucky Imaging
Matthew B. James, Graeme L. White, Roderick R. Letchford +1
Accurate measures of double stars require accurate calibration of the instrument. Here we present a list of 50 pairs, that are quasi-evenly spaced over the southern sky, and that h…
Measures of Ten Sco Doubles and the Determination of Two Orbits
Matthew James, Meg Emery, Graeme L. White +2
We present measures for 10 pairs in the constellation of Scorpius using a C14 telescope, Lucky Imaging, and the Reduc software. The separations of Alpha Centauri AB, as determined…