Discovery | |
---|---|
Discovered by | Max Wolf |
Discovery site | Heidelberg Observatory |
Discovery date | 3 September 1902 |
Designations | |
(492) Gismonda | |
Pronunciation | /dʒɪzˈmɒndə/ |
1902 JR | |
Orbital characteristics[1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 113.62 yr (41499 d) |
Aphelion | 3.6662 AU (548.46 Gm) |
Perihelion | 2.5610 AU (383.12 Gm) |
3.1136 AU (465.79 Gm) | |
Eccentricity | 0.17747 |
5.49 yr (2,006.7 d) | |
267.617° | |
0° 10m 45.84s / day | |
Inclination | 1.6188° |
46.215° | |
296.611° | |
Physical characteristics | |
25.845±0.7 km | |
6.488 h (0.2703 d) | |
0.0795±0.005 | |
9.9 | |
492 Gismonda is a main belt asteroid discovered by German astronomer Max Wolf in 1902. Gismonda is named after the daughter of Tancred, prince of Salerno, from Giovanni Boccaccio's work, The Decameron.[2] It is orbiting 3.11 AU (466 Gm) from the Sun with a period of 5.49 yr and an orbital eccentricity (ovalness) of 0.18. The orbital plane is inclined at an angle of 1.6° to the plane of the ecliptic.[1]
This asteroid is a member of the Themis collisional family, which is one of the largest such groups in the belt. It has an estimated diameter of 50.3±1.1 km. The spectrum suggests the surface is covered with a fine grained silicate mantle.[3] Photometric observations of Gismonda made in 1902 produce a light curve displaying a rotation period of 6.488±0.005 h with a brightness variation of 0.16±0.02 in magnitude[4]
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