26 Proserpina
Synodic rotation period | 13.11 h[3][5] | |
| 0.1966[3][6] | ||
| S[3] | ||
| 7.5[3] | ||
Proserpina (
Ceres and the Queen of the Underworld. Another main-belt asteroid, 399 Persephone, discovered in 1895, is named after her Greek counterpart. Its historical symbol was a star inside a pomegranate; it is in the pipeline for Unicode 17.0 as U+1CECD (
).[7][8]
.svg){kind=small}
).[7][8]This object is orbiting the Sun with a period of 4.33 years. It has a cross-section size of around 90 km and a stony (S-type) composition. Photometric observations of this asteroid have produced discrepant estimates of the rotation period. A period of 12.13 hours was reported in 1979, followed by 10.6 hours in 1981 and 6.67 hours in 2001. Observations made in 2007 at the Oakley Observatory in Terre Haute, Indiana produced a light curve with a period of 13.06 ± 0.03 hours and a brightness variation of 0.21 ± 0.01 in magnitude.[9] This was refined by a 2008 study, giving a period of 13.110 ± 0.001 hours.[10]
References
- ^ Noah Webster (1884) A Practical Dictionary of the English Language
- ^ E.g. Andrew & Reid (2003) Two Hundred Years of Pushkin
- ^ a b c d e "JPL Small-Body Database Browser: 26 Proserpina" (2011-12-30 last obs). Jet Propulsion Laboratory. Retrieved 28 January 2012.
- ^ S2CID 119226456. See Table 1.
- ^ "Asteroid lightcurve derived data". Archived from the original on 13 September 2006. Retrieved 11 August 2006.
- ^ "Asteroid Albedos". Archived from the original on 22 July 2012. Retrieved 11 August 2006.
- ^ Bala, Gavin Jared; Miller, Kirk (18 September 2023). "Unicode request for historical asteroid symbols" (PDF). unicode.org. Unicode. Retrieved 26 September 2023.
- ^ Unicode. "Proposed New Characters: The Pipeline". unicode.org. The Unicode Consortium. Retrieved 6 November 2023.
- Bibcode:2007MPBu...34...59D.
- Bibcode:2008MPBu...35..135P.
External links
- 26 Proserpina at AstDyS-2, Asteroids—Dynamic Site
- 26 Proserpina at the JPL Small-Body Database
