422 Berolina

422 Berolina

Discovery
Discovered by	G. Witt
Discovery date	8 October 1896
Designations
Named after	Berlin
Alternative designations	1896 DA
Minor planet category	Main belt
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	109.00 yr (39811 d)
Aphelion	2.70724 AU (404.997 Gm)
Perihelion	1.74907 AU (261.657 Gm)
Semi-major axis	2.22815 AU (333.326 Gm)
Eccentricity	0.21502
Orbital period (sidereal)	3.33 yr (1214.8 d)
Average orbital speed	19.95 km/s
Mean anomaly	29.4528°
Mean motion	0° 17m 46.817s / day
Inclination	4.99913°
Longitude of ascending node	9.08604°
Argument of perihelion	335.361°
Earth MOID	0.742474 AU (111.0725 Gm)
Jupiter MOID	2.69555 AU (403.249 Gm)
TJupiter	3.609
Physical characteristics
Dimensions	17 - 37 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Synodic rotation period	12.79 h (0.533 d)
Geometric albedo	unknown
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	10.83

422 Berolina is a typical Main belt asteroid.

It was discovered by G. Witt on October 8, 1896 in Berlin. It was first of his two asteroid discoveries. The other was the famous asteroid 433 Eros.

Although it has an orbit similar to the Flora family asteroids, it appears to be an unrelated interloper due to not being of the S spectral type (see the PDS asteroid taxonomy data set).

External links

• 422 Berolina at the JPL Small-Body Database