Astronomy:972 Cohnia

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972 Cohnia
Discovery
Discovered byMax Wolf
Discovery siteHeidelberg
Discovery date18 January 1922
Designations
(972) Cohnia
Pronunciation/ˈkniə/
1922 LK
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc110.24 yr (40266 days)
|{{{apsis}}}|helion}}3.7748 astronomical unit|AU (564.70 Gm)
|{{{apsis}}}|helion}}2.3388 AU (349.88 Gm)
3.0568 AU (457.29 Gm)
Eccentricity0.23487
Orbital period5.34 yr (1952.1 d)
Mean anomaly294.244°
Mean motion0° 11m 3.912s / day
Inclination8.3709°
Longitude of ascending node281.530°
93.837°
Physical characteristics
Mean radius37.825±0.95 km
Rotation period18.472 h (0.7697 d)
Geometric albedo0.0489±0.003
Absolute magnitude (H)9.50


972 Cohnia is a minor planet orbiting the Sun, one of several such in the asteroid belt. It was discovered on 18 January 1908 by a team in Heidelberg led by Max Wolf. In 2007, lightcurve data showed that Cohnia rotates every 18.472 ± 0.004 hours.[2]

It is named after the German astronomer Fritz Cohn.

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