1384 Kniertje

Kniertje

Discovery
Discovered by	H. van Gent
Discovery site	Union Observatory
Discovery date	9 September 1934
Designations
MPC designation	1384
Alternative names	1934 RX
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	81.60 yr (29804 days)
Aphelion	3.1642968 AU (473.37206 Gm)
Perihelion	2.1863921 AU (327.07960 Gm)
Semi-major axis	2.675344 AU (400.2258 Gm)
Eccentricity	0.1827624
Orbital period	4.38 yr (1598.3 d)
Mean anomaly	197.97692°
Mean motion	0° 13^m 30.843^s / day
Inclination	11.85833°
Longitude of ascending node	152.86062°
Argument of perihelion	276.25601°
Earth MOID	1.23646 AU (184.972 Gm)
Jupiter MOID	2.23686 AU (334.629 Gm)
Jupiter Tisserand parameter	3.325
Physical characteristics
Dimensions	28 km[1]
Mean radius	13.755±0.8 km
Rotation period	9.807 h (0.4086 d)
Sidereal rotation period	9.8 h[1]
Geometric albedo	0.3077±0.039[1]
Absolute magnitude (H)	11.6[1]

1384 Kniertje (1934 RX) is a main-belt asteroid discovered on September 9, 1934, by H. van Gent at the Union Observatory in Johannesburg. South Africa. It is the subject of multiple light curve studies,^[2][3][4] and was named after a character in Op Hoop van Zegen, a play by Dutch playwright Herman Heijermans.^[5] The asteroid has a high albedo of 0.3.^[1]

References

1. "JPL Small-Body Database Browser: 1384 Kniertje". Jet Propulsion Laboratory. Retrieved 27 April 2016.
2. Warner, B. D. (December 2006), "Asteroid lightcurve analysis at the Palmer Divide Observatory - March - June 2006", Minor Planet Bulletin 33: 85–88, Bibcode:2006MPBu...33...85W.
3. Hawkins, S.; Ditteon, R. (March 2008), "Asteroid Lightcurve Analysis at the Oakley Observatory - May 2007", Minor Planet Bulletin 35: 1–4, Bibcode:2008MPBu...35....1H.
4. Vinson, R.; Moore, R.; Ditteon, R. (July 2014), "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2013 October", Minor Planet Bulletin 41: 169–170, Bibcode:2014MPBu...41..169V.
5. Schmadel, Lutz D. (2003), Dictionary of Minor Planet Names (5th ed.), Springer, p. 112, ISBN 9783642297182.

External links

• 1384 Kniertje at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters