Discovery[1] | |
---|---|
Discovered by | Y. Väisälä |
Discovery site | Turku Obs. |
Discovery date | 17 March 1939 |
Designations | |
(1757) Porvoo | |
Named after | Porvoo (Finnish city)[2] |
1939 FC · 1964 BB 1968 FK | |
main-belt · (inner) [3] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 77.87 yr (28,442 days) |
Aphelion | 2.6478 AU |
Perihelion | 2.0551 AU |
2.3514 AU | |
Eccentricity | 0.1260 |
3.61 yr (1,317 days) | |
263.06° | |
0° 16m 23.88s / day | |
Inclination | 3.9765° |
39.423° | |
149.40° | |
Physical characteristics | |
Dimensions | 6.32 km (calculated)[3] 10.03±2.85 km[4] 12.81±0.45 km[5] |
4.89 h[6] | |
0.049±0.004[5] 0.072±0.097[4] 0.073±0.082 0.20 (assumed)[3] | |
S[3] | |
13.36[1][3][5] · 13.47[4] · 13.49±0.26[7] | |
1757 Porvoo, provisional designation 1939 FC, is a presumably stony asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 17 March 1939, by Finnish astronomer Yrjö Väisälä at Turku Observatory on the coast of southwestern Finland.[8] The asteroid was named for the Finnish city of Porvoo.[2]
jpldata
was invoked but never defined (see the help page).springer
was invoked but never defined (see the help page).lcdb
was invoked but never defined (see the help page).Masiero-2012
was invoked but never defined (see the help page).AKARI
was invoked but never defined (see the help page).Binzel-1983b
was invoked but never defined (see the help page).Veres-2015
was invoked but never defined (see the help page).MPC-Porvoo
was invoked but never defined (see the help page).