On the proper motion of small pores in sunspot groups

Details On the proper motion of small pores in sunspot groups On the proper motion of small pores in sunspot groups

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979soph...63...61m&link_type=abstract

Solar Physics, vol. 63, Aug. 1979, p. 61-66.

Physics

Astronomical Photography, Position Errors, Position Indicators, Sunspots, Time Series Analysis, Error Analysis, Instrument Errors, Root-Mean-Square Errors, Solar Magnetic Field

Scientific paper

The possibility of measuring pore positions and proper motions with high
accuracy, using time series of short exposure photographs, is discussed.
Preliminary measurements of a series covering a time span of 110 min.
show that positions of small pores may be defined, and horizontal
velocities determined, to within 0.1 inches or 30 m/s, respectively.

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