1090 Sumida

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1090 Sumida
Discovery A
Discoverer Okuro Oikawa
Discovery date February 20, 1928
Alternate
designations B		 1928 DG
Category
Orbital elements C
Epoch JD 2445600.5
Eccentricity (e) 0.2213034
Semi-major axis (a)
Perihelion (q) 1.8372244 AU
Aphelion (Q)
Orbital period (P)
Mean orbital speed
Inclination (i) 21.5146787°
Longitude of the
ascending node (Ω)		 147.6050658°
Argument of
perihelion (ω)		 337.3237229°
Mean anomaly (M)
Physical characteristics D
Dimensions 42 km
Mass
Density
Surface gravity
Escape velocity
Rotation period
Spectral class
Absolute magnitude 12.49
Albedo (geometric) 0.15
Mean surface
temperature
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1090 Sumida is a minor planet orbiting the Sun. Initially it received the designation 1928 DG. It is now named after the Sumida River. The numerical designation indicates this was the 1090th asteroid discovered.

[edit] See also

List of asteroids/1001–2000

[edit] External links

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See also: Near-Earth object · Dwarf planet · Planet · Solar System · Pronunciation of asteroid names · Meanings of asteroid names.
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