169 Zelia

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169 Zelia
Orbita asteroida 169.png
Orbital diagram
Discovery
Discovered by P. M. Henry, 1876
Discovery date28 September 1876
Designations
(169) Zelia
Named after
Zelia Martin
A876 SB; 1933 FC2
Main belt
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 131.26 yr (47944 d)
Aphelion 2.6662  AU (398.86  Gm)
Perihelion 2.0511 AU (306.84 Gm)
2.3586 AU (352.84 Gm)
Eccentricity 0.13040
3.62 yr (1323.1 d)
249.62°
0° 16m 19.524s / day
Inclination 5.5001°
354.77°
334.90°
Earth  MOID 1.04119 AU (155.760 Gm)
Jupiter  MOID 2.65309 AU (396.897 Gm)
TJupiter 3.535
Physical characteristics
Mean radius
16.80±1.3 km [1]
19.3 ± 0.45 km [2]
14.537  h (0.6057  d)
0.178 ± 0.035 [2]
0.2347±0.041 [1]
O (Bus & Binzel) [2]
9.56

    Zelia (minor planet designation: 169 Zelia) is a main belt asteroid that was discovered by the brothers Paul Henry and Prosper Henry on September 28, 1876. Credit for this discovery was given to Prosper. [3] Initial orbital elements for this asteroid were published in 1877 by American astronomer H. A. Howe. [4]

    Based upon its spectrum, this body is classified as a rare O-type asteroid in the taxonomic system of Bus & Binzel. [2] Photometric observations of this asteroid during 2009 gave a light curve with a period of 14.537 ± 0.001 hours and a brightness variation of 0.14 ± 0.03 in magnitude. [5]

    It was named for Zelia Martin, a niece of the astronomer Camille Flammarion. [6]

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    References

    1. 1 2 3 Yeomans, Donald K., "169 Zelia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory , retrieved 6 May 2016.
    2. 1 2 3 4 Mainzer, A.; et al. (January 2012), "NEOWISE Studies of Asteroids with Sloan Photometry: Preliminary Results", The Astrophysical Journal, 745 (1): 7, arXiv: 1110.4998 , Bibcode:2012ApJ...745....7M, doi:10.1088/0004-637X/745/1/7.
    3. Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 28, ISBN   978-3642297182.
    4. Howe, H. A. (May 1877), "Elements of (169) Zelia", Astronomische Nachrichten, 89 (18): 279, Bibcode:1877AN.....89..279H, doi:10.1002/asna.18770891803.
    5. Stephens, Robert D.; Pilcher, Frederick (October 2009), "Photometric Observations of 169 Zelia", The Minor Planet Bulletin, 36 (4): 161, Bibcode:2009MPBu...36..161S.
    6. Schmadel, L. (2003:28). Dictionary of minor planet names. Germany: Springer.