1743 Schmidt

1743 Schmidt
Discovery[1]
Discovered by Palomar–Leiden survey
C. J. van Houten, I. van Houten-Groeneveld and Tom Gehrels
Discovery site Palomar Obs.
Discovery date 24 September 1960
Designations
MPC designation 1743 Schmidt
Named after
Bernhard Schmidt[2]
4109 P–L · 1931 BJ
1939 CN · 1943 EA
1947 GD · 1951 JU
1952 QD
main-belt
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 85.17 yr (31110 days)
Aphelion 2.8065 AU (419.85 Gm)
Perihelion 2.1397 AU (320.09 Gm)
2.4731 AU (369.97 Gm)
Eccentricity 0.13482
3.89 yr (1420.6 d)
258.01°
 15m 12.312s / day
Inclination 6.3571°
189.64°
359.79°
Earth MOID 1.14003 AU (170.546 Gm)
Jupiter MOID 2.15155 AU (321.867 Gm)
Jupiter Tisserand parameter 3.462
Physical characteristics
Dimensions 17.3 km
Mean radius
8.64 ± 0.7 km
17.45 h (0.727 d)
0.0603 ± 0.011
B–V = 0.620
U–B = 0.260
12.48

    1743 Schmidt, also designated 4109 P–L, is an asteroid from the asteroid belt, about 17 kilometers in diameter. It was discovered on September 24, 1960, by Cornelis van Houten and Ingrid van Houten-Groeneveld at Leiden, on photographic plates taken by Tom Gehrels at Palomar. The asteroid orbits the Sun at a distance of 2.1–2.8 AU once every 3.89 years (1,421 days). It has a rotation period of 17.5 hours and a geometric albedo of 0.06.[1]

    The designation P–L stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Cornelis van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries.

    The asteroid was named after Baltic German optician and astronomer Bernhard Schmidt (1879–1935), the inventor of the Schmidt camera.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1743 Schmidt (4109 P-L)" (2015-09-15 last obs.). Jet Propulsion Laboratory. Retrieved 21 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1743) Schmidt. Springer Berlin Heidelberg. p. 138. ISBN 978-3-540-29925-7. Retrieved October 2015.

    External links


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