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847 Agnia

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Discovered by  G. N. Neujmin
Alternative names  1915 XX
Aphelion  3.0472 AU (455.85 Gm)
Discovered  2 September 1915
Orbits  Sun
Discovery site  Simeiz Observatory
Discovery date  2 September 1915
Observation arc  109.53 yr (40006 d)
Perihelion  2.5158 AU (376.36 Gm)
Inclination  2.4817°
Discoverer  Grigory Neujmin
Asteroid group  Asteroid belt
847 Agnia httpsuploadwikimediaorgwikipediacommonsthu
Similar  824 Anastasia, 516 Amherstia, 808 Merxia, 276 Adelheid, 441 Bathilde

847 Agnia is a minor planet orbiting the Sun. It is approximately 28 kilometers in diameter.

The spectrum of this object indicates that it is an S-type asteroid with both low and high calcium forms of pyroxene on the surface, along with less than 20% olivine. The high-calcium form of pyroxene forms 40% or more of the total pyroxene present, indicating a history of igneous rock deposits. This suggests that the asteroid underwent differentiation by melting, creating a surface of basalt rock.

847 Agnia is the namesake of the Agnia family of asteroids that share similar orbital elements and physical properties. The members of this family, including 847 Agnia, most likely formed from the breakup of a basalt object, which in turn was spawned from a larger parent body that had previously undergone igneous differentiation. Other members of this family include 1020 Arcadia, 1228 Scabiosa, 2401 Aehlita, and 3395 Jitka

Photometric observations of this asteroid collected during 2004–2005 show a rotation period of 14.827 ± 0.001 hours with a brightness variation of 0.45 ± 0.03 magnitude.

References

847 Agnia Wikipedia


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