11755 Paczynski

Paczynski
Discovery
Discovered by	C. J. van Houten, I. van Houten-Groeneveld and T. Gehrels
Discovery site	Palomar Observatory
Discovery date	24 September 1960
Designations
MPC designation	11755
Named after	Bohdan Paczyński
Alternative names	2691 P-L
Orbital characteristics^[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	22198 days (60.77 yr)
Aphelion	2.7490988 AU (411.25933 Gm)
Perihelion	2.0191137 AU (302.05511 Gm)
Semi-major axis	2.384106 AU (356.6572 Gm)
Eccentricity	0.1530941
Orbital period	3.68 yr (1344.6 d)
Mean anomaly	141.82520°
Mean motion	0° 16^m 3.869^s / day
Inclination	2.823397°
Longitude of ascending node	32.69826°
Argument of perihelion	192.36603°
Earth MOID	1.00938 AU (151.001 Gm)
Jupiter MOID	2.2298 AU (333.57 Gm)
Jupiter Tisserand parameter	3.519
Physical characteristics
Absolute magnitude (H)	14.7

11755 Paczynski (2691 P-L) is a main-belt asteroid discovered on September 24, 1960, by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.

Polish-born astrophysicist Bohdan Paczyński (b. 1940), at Princeton University since 1982, is known for his theoretical work on gamma ray bursters---he was an early proponent of their being at cosmological distances---and for leading searches for gravitational lensing by low-mass stars and substellar objects.^[2]

References

Designation Groups Moons Meanings of names Pronunciation of names

Asteroids	Aten asteroid Asteroid belt Families Jupiter Trojans Near-Earth Spectral types

Distant minor planets	Centaurs Damocloids Neptune trojans Trans-Neptunian objects Detached Kuiper belt Oort cloud Scattered disc

Lists / categories

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