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Photoelectric photometry of asteroid 69 Hesperia (1985)

Bowell, E. ; Poutanen, M. ; Martin, L. J. ; [et al.]

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Publication Date: 2019-06-28

Description: UBV photometric observations of the M asteroid 69 Hesperia, obtained using single-channel photometers on the 31-in. and 42-in. reflectors at Lowell Observatory and on the 24-in. reflector at Mauna Kea Observatory during the apparition of August-November 1977, are reported. The data are presented in tables and graphs and analyzed. Findings presented include minimal temporal or phase-angle-dependent light-curve fluctuations, evidence for large-scale albedo variegation of a few percent, synodic rotation period 5.65537 + or - 0.00064 h, zero-phase color indices B-V = 0.68 mag and U-B = 0.24 mag, B-V phase reddening 0.003 mag/deg, and absolute zero-phase primary maximum magnitude V = 7.04.

Keywords: ASTRONOMY

Type: Astronomy and Astrophysics Supplement Series (ISSN 0365-0138); 61; 291-297

Format: text

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