1155 Aënna

1155 Aenna
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 26 January 1928
Designations
MPC designation 1155 Aenna
Named after
 Astronomische Nachrichten (journal)[2]
1928 BD · 1928 FU
1941 UZ · 1982 DR6
main-belt
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 88.15 yr (32195 days)
Aphelion 2.8686 AU (429.14 Gm)
Perihelion 2.0578 AU (307.84 Gm)
2.4632 AU (368.49 Gm)
Eccentricity 0.16458
3.87 yr (1412.1 d)
249.01°
0° 15m 17.82s / day
Inclination 6.5933°
39.126°
195.56°
Earth MOID 1.04741 AU (156.690 Gm)
Jupiter MOID 2.12864 AU (318.440 Gm)
Jupiter Tisserand parameter 3.461
Physical characteristics
Mean radius
 5.82±0.5 km
8.07 h (0.336 d)
0.3278±0.066
SMASS = Xe
12.0

    1155 Aënna, provisional designation 1928 BD, is a main belt asteroid, approximately 12 kilometers in diameter. The X-type asteroid revolves around the Sun once every 3.87 years. It was discovered by Karl Reinmuth at Heidelberg Observatory, Germany on January 26, 1928.[1]

    It was named after one of the first international journals in the field of astronomy, Astronomische Nachrichten. The construct "Aënna" contains the German pronunciation of the initials "A" and "N" followed by the feminine ending. The name was proposed by the Astronomisches Rechen-Institut.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1155 Aenna (1928 BD)" (2015-09-19 last obs.). Jet Propulsion Laboratory. Retrieved 1 May 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1155) Aënna. Springer Berlin Heidelberg. p. 97. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.

    External links

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