1000 Piazzia
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1000 Piazzia, provisional designation 1923 NZ, is a carbonaceous background asteroid from the outer region of the asteroid belt, approximately 48 kilometers (30 miles) in diameter. It was discovered on 12 August 1923, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. The C-type asteroid has a rotation period of 9.5 hours.[5] It was named after Italian Giuseppe Piazzi, who discovered 1 Ceres.[3]
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 12 August 1923 |
Designations | |
(1000) Piazzia | |
Pronunciation | /piˈætsiə/[2] |
Named after | Giuseppe Piazzi[3] (Italian astronomer) |
1923 NZ · A923 PF 1951 OB · 1967 ED | |
Orbital characteristics[4] | |
Epoch 27 April 2019 (JD 2458600.5) | |
Uncertainty parameter 0 | |
Observation arc | 94.83 yr (34,637 d) |
Aphelion | 3.9909 AU |
Perihelion | 2.3511 AU |
3.1710 AU | |
Eccentricity | 0.2586 |
5.65 yr (2,063 d) | |
347.91° | |
0° 10m 28.2s / day | |
Inclination | 20.574° |
323.74° | |
280.90° | |
Physical characteristics | |
Mean diameter | |
9.47±0.01 h[12] | |
C/Cb (S3OS2)[13] | |
9.60[8][11] 10.5[1][4][5] 10.60[14][9] 10.61[10] | |
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