. Annals of the New York Academy of Sciences. Science. 116 Rutherfurd Photographic Measures of. 61- Cygni AB = <r0 = True distance at from the mean of all the measured distances. jSfZV= Distance measured on plate of the date, I, corrected except for proper motion. P01 Po' = The proper motions of 6il and 612 Cygni at the epoch AM, BN= Arcs traveled over in the time T = t — A<r0]=The change in o-0 due to the proper motion of only 611 from A to M. A'<r0 = The change in (o-0 — A<r0) due to the proper motion of only 61* from B to N- PAB = 7r0 = True angle at
. Annals of the New York Academy of Sciences. Science. 116 Rutherfurd Photographic Measures of. 61- Cygni AB = <r0 = True distance at from the mean of all the measured distances. jSfZV= Distance measured on plate of the date, I, corrected except for proper motion. P01 Po' = The proper motions of 6il and 612 Cygni at the epoch AM, BN= Arcs traveled over in the time T = t — A<r0]=The change in o-0 due to the proper motion of only 611 from A to M. A'<r0 = The change in (o-0 — A<r0) due to the proper motion of only 61* from B to N- PAB = 7r0 = True angle at from the mean of all the measured angles. PMN= Position-angle measured on plate of the date, t, corrected except for proper motion. Xo, Xo' = The position-angles of the proper motion of 611 and 612 at PBA = A0', also y, z, K are auxiliary angles having the significance shown above. A7r0=The change in 7r0 due to the proper motion of only 611 from A to M. A'7r0 = The change in (n0 — An0) due to the proper motion of 612 from B to Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York Academy of Sciences. New York, New York Academy of Sciences
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1877
