1025 Riema

1025 Riema
Discovery[1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date12 August 1923
Designations
(1025) Riema
Named after
Johannes Riem
(German astronomer)[2]
1923 NX · A923 QA
main-belt · (inner)[1] · Hungaria[3][4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc93.81 yr (34,264 days)
Aphelion2.0572 AU
Perihelion1.9009 AU
1.9790 AU
Eccentricity0.0395
2.78 yr (1,017 days)
102.31°
0° 21m 14.4s / day
Inclination26.863°
163.39°
349.06°
Physical characteristics
Dimensions4.605±0.171 km[5]
5.48 km (derived)[3]
3.566±0.005 h[6]
3.578±0.002 h[a][b]
3.580±0.005 h[7]
3.581±0.002 h[8][c]
3.581±0.001 h[9][b]
3.588±0.002 h[10][b]
6.557±0.001 h[11]
1.000±0.000[5]
0.166±0.036[12]
0.40 (assumed)[3]
E (Tholen), Xe (SMASS)
M[13] · Xe[3]
B–V = 0.714[1]
U–B = 0.294[1]
V–R = 0.440±0.010[11]
12.30[5] · 12.5[1]
12.57±0.28[14] · 12.92±0.04[3][15][16]

1025 Riema, provisional designation 1923 NX, is a bright Hungaria asteroid from the innermost regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 12 August 1923, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany.[17] The asteroid was named after ARI astronomer Johannes Riem.[2]

  1. ^ a b c d e f Cite error: The named reference jpldata was invoked but never defined (see the help page).
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  3. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Spratt-1990 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Warner-2009m was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Stephens-2003e was invoked but never defined (see the help page).
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  11. ^ a b Cite error: The named reference Shevchenko-2003 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Gil-Hutton-2007 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Belskaya-2017 was invoked but never defined (see the help page).
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  15. ^ Cite error: The named reference Wisniewski-1997 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Pravec-2012b was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference MPC-Riema was invoked but never defined (see the help page).


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