1604 Tombaugh

1604 Tombaugh
Shape model of Tombaugh from its lightcurve
Discovery[1]
Discovered byC. O. Lampland
Discovery siteLowell Obs.
Discovery date24 March 1931
Designations
(1604) Tombaugh
Named after
Clyde Tombaugh
(astronomer)[2]
1931 FH · 1930 DX
1933 SA1 · 1936 FA
1937 JH · 1941 CF
1943 OE · 1948 ME
1949 ST1 · A920 EC
main-belt · Eos[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc96.51 yr (35,252 days)
Aphelion3.3309 AU
Perihelion2.7161 AU
3.0235 AU
Eccentricity0.1017
5.26 yr (1,920 days)
359.39°
0° 11m 15s / day
Inclination9.3941°
309.10°
38.199°
Physical characteristics
Dimensions28.78±0.53 km[4]
32.25 km (derived)[3]
32.33±2.2 km (IRAS:3)[5]
6.15 h (dated)[6]
7.04 h (dated)[7]
7.047±0.004 h[8]
7.056±0.001 h[9]
8.2 h (dated)[10]
0.0933 (derived)[3]
0.1038±0.016 (IRAS:3)[5]
0.138±0.006[4]
B–V = 0.751[1]
U–B = 0.373[1]
XSCU (Tholen)[1] · Xc (SMASS)[1] · X[3]
10.4[1] · 10.53[5][4] · 10.65[3][7] · 10.93±0.15[11]

1604 Tombaugh, provisional designation 1931 FH, is a rare-type Eos asteroid from the outer region of the asteroid belt, approximately 32 kilometers in diameter. It was discovered on 24 March 1931, by American astronomer Carl Otto Lampland at Lowell Observatory in Flagstaff, Arizona, in the United States.[12] It was named after the discoverer of Pluto, Clyde Tombaugh.[2]

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  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
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  4. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Sarneczky-1999 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Binzel-1987b was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Albers-2010 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Strabla-2013a was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Lagerkvist-1978a was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference MPC-Tombaugh was invoked but never defined (see the help page).