Masursky imaged by Cassini–Huygens in January 2000
Discovery [1]
Discovered by
E. Bowell
Discovery site
Anderson Mesa Stn.
Discovery date
3 May 1981
Designations
MPC designation
(2685) Masursky
Pronunciation
/məˈzɜːrski/
Named after
Harold Masursky [1] (American planetary geologist)
Alternative designations
1981 JN · 1950 VO 1973 QF ·1975 XJ5 1977 KU
Minor planet category
main-belt [1][2]·(middle) Eunomia [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc
44.58 yr (16,282 d)
Aphelion
2.8522 AU
Perihelion
2.2874 AU
Semi-major axis
2.5698 AU
Eccentricity
0.1099
Orbital period (sidereal)
4.12 yr (1,505 d)
Mean anomaly
54.965°
Mean motion
0° 14m 21.48s / day
Inclination
12.129°
Longitude of ascending node
215.36°
Argument of perihelion
288.47°
Physical characteristics
Mean diameter
10.744±0.170 km[4]
Geometric albedo
0.114±0.034[5]
Spectral type
S [6]
Absolute magnitude (H)
12.1[2]
2685 Masursky, provisional designation 1981 JN, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 11 kilometers (6.8 miles) in diameter. It was discovered on 3 May 1981, by American astronomer Edward Bowell at the Anderson Mesa Station near Flagstaff, Arizona, and named after American planetary geologist Harold Masursky.[1] In January 2000, the Cassini space probe observed the S-type asteroid from afar during its coast to Saturn.[7]
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2685Masursky, provisional designation 1981 JN, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 11 kilometers...
water on the surface. In 1981, the asteroid 2685Masursky was discovered and named in his honor. The Masursky Award for Meritorius Service to Planetary...
the option to pass near Clarissa. Cassini-Huygens passed by asteroid 2685Masursky on 23 January 2000 instead. "302 Clarissa". JPL Small-Body Database...
landed on near–Earth asteroid 433 Eros in February 2001. Cassini imaged 2685Masursky in 2000, Stardust imaged 5535 Annefrank in 2002, New Horizons imaged...
camera pointing error; went on to visit comet 19P/Borrelly 1998-061A 2685Masursky Cassini NASA/ ESA/ ASI 23 January 2000 distant flyby success en route...
Discovery year Name Closest approach Remarks year in km in radii(b) 2685Masursky 10.7 1981 Cassini–Huygens 2000 1,600,000 297,840 Distant incidental...
negating the option to pass near Maja. Cassini-Huygens passed by asteroid 2685Masursky on 23 January 2000 instead. "JPL Small-Body Database Browser: 66 Maja"...
to operate on surface until 1 March. Cassini–Huygens 15 October 1997 2685Masursky Flyby — Distant incidental flyby en route to Saturn; closest approach...
assist en route to Saturn. Asteroid 2685Masursky 23 January 2000 831 days (2 yr, 3 mo, 9 d) Cassini flew by Masursky en route to Saturn. Jupiter 30 December...
3 January Galileo 12th flyby of Europa 23 January Cassini Flyby of 2685Masursky 14 February NEAR First orbiter of asteroid; entered orbit of 433 Eros...
Ingersoll, Andrew P.; Collins, Stewart A.; Shoemaker, Eugene M.; Hunt, G. E.; Masursky, Harold; Carr, Michael H. (1979-06-01). "The Jupiter System Through the...
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