1768 Appenzella

1768 Appenzella
Shape model of Appenzella from its lightcurve
Discovery[1]
Discovered byP. Wild
Discovery siteZimmerwald Obs.
Discovery date23 September 1965
Designations
(1768) Appenzella
Named after
Appenzell (canton)[2]
1965 SA · 1934 PM
1942 TH
main-belt · Nysa[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc74.56 yr (27,232 days)
Aphelion2.8899 AU
Perihelion2.0141 AU
2.4520 AU
Eccentricity0.1786
3.84 yr (1,402 days)
175.69°
0° 15m 24.12s / day
Inclination3.2582°
12.423°
19.718°
Physical characteristics
Dimensions19.0±1.9 km[4]
19.30±0.17 km[5]
20.221±0.129 km[6][7]
20.86±2.3 km (IRAS:2)[8]
21±2 km[9]
5.18335±0.00001 h[10]
5.1839±0.0001 h[11]
0.03±0.01[9]
0.032±0.007[6][7]
0.0338±0.009 (IRAS:2)[8]
0.039±0.008[5]
0.04±0.01[4]
F (Tholen)[1]
C (SMASS)[1]
B–V = 0.615[1]
U–B = 0.230[1]
12.70[1][3][4][5][6][9]

1768 Appenzella (prov. designation: 1965 SA) is a rare-type Nysian asteroid from the inner regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 23 September 1965, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland.[12] It was later named after the Swiss canton of Appenzell.[2]

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  9. ^ a b c Cite error: The named reference Ali-Lagoa-2013 was invoked but never defined (see the help page).
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  12. ^ Cite error: The named reference MPC-Appenzella was invoked but never defined (see the help page).