Back 178 ايرميلا (كويكب) ARZ (1178) Ирмела CE (1178) Irmela German 1178 Ιρμέλα Greek 1178 Irmela Esperanto (1178) Irmela Spanish 1178 Irmela Basque سیارک ۱۱۷۸ Persian (1178) Irmela French 1178 Irmela Hungarian

1178 Irmela

1178 Irmela
Discovery[1]
Discovered byM. F. Wolf
Discovery siteHeidelberg Obs.
Discovery date13 March 1931
Designations
(1178) Irmela
Named after
Irmela Ruska
(wife of Ernst Ruska)[2]
1931 EC · 1940 GC
1962 JD · 1988 CK6
main-belt · (middle)[3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc85.83 yr (31,351 days)
Aphelion3.1700 AU
Perihelion2.1916 AU
2.6808 AU
Eccentricity0.1825
4.39 yr (1,603 days)
209.87°
0° 13m 28.56s / day
Inclination6.9511°
170.11°
357.21°
Physical characteristics
Dimensions17.00±3.43 km[4]
17.50±4.91 km[5]
17.90±0.57 km[6]
19.05 km (derived)[3]
19.09±0.8 km (IRAS:15)[7]
19.663±0.049 km[8]
20.683±0.181 km[9]
11.989±0.001 h[10]
19.17 h[11]
0.0503±0.0031[9]
0.070±0.006[8]
0.08±0.03[4]
0.08±0.07[5]
0.0838 (derived)[3]
0.0916±0.008 (IRAS:15)[7]
0.105±0.007[6]
S[3]
11.81[1][4][6][7] · 11.87±0.35[12] · 11.91[3][9][11] · 12.14[5]

1178 Irmela, provisional designation 1931 EC, is a stony asteroid from the middle regions of the asteroid belt, approximately 19 kilometers in diameter.

It was discovered on 13 March 1931, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany.[13] The asteroid was named after Irmela Ruska, wife of Ernst Ruska.[2]

  1. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Stephens-2012c was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Binzel-1987b was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference MPC-Irmela was invoked but never defined (see the help page).
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