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HD 88234


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The angular diameter of Regulus from the 28 March 1980 CTIO occultation
On 28 March 1980 an occultation of Regulus (= alpha Leo) was observed intwo colors from Cerro Tololo Inter-American Observatory. The best-fituniform disk angular diameters (in milliarcseconds) derived from thesedata are 1.32 + or - 0.2 (yellow channel, lambda = 5768 A) and 1.37 + or- 0.11 (blue channel, lambda = 4356 A), in excellent agreement with themeasurement obtained through intensity interferometry and in reasonableagreement with a daytime occultation observed at Kitt Peak NationalObservatory.

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Observation and Astrometry data

Constellation:Leo
Right ascension:10h10m41.46s
Declination:+11°49'29.6"
Apparent magnitude:8.324
Proper motion RA:31.1
Proper motion Dec:-29.9
B-T magnitude:9.277
V-T magnitude:8.403

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 88234
TYCHO-2 2000TYC 833-847-1
USNO-A2.0USNO-A2 0975-06431128

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