1648 Shajna

1648 Shajna
Shape model of Shajna from its lightcurve
Discovery[1]
Discovered byP. Shajn
Discovery siteSimeiz Obs.
Discovery date5 September 1935
Designations
(1648) Shajna
Named after
Couple of astronomers
(Pelageya and Grigory)[2]
1935 RF · 1934 CK1
1938 MC · 1941 FD
1948 LC · 1951 EX2
1952 SX · 1952 UW
1955 QT · 1955 RP
A921 GB · A924 EQ
main-belt · (inner)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc95.99 yr (35,061 days)
Aphelion2.6971 AU
Perihelion1.7737 AU
2.2354 AU
Eccentricity0.2065
3.34 yr (1,221 days)
250.93°
0° 17m 41.64s / day
Inclination4.5723°
130.42°
134.71°
Physical characteristics
Dimensions8.26±1.47 km[4]
8.30±0.30 km[5]
9.23 km (calculated)[3]
9.450±0.141 km[6][7]
6.41368±0.00001 h[8]
6.41369±0.00005 h[9]
6.4140±0.0002 h[10]
6.4140±0.0164 h (R)[11]
6.4248±0.0164 h (S)[11]
0.191±0.016[6][7]
0.20 (assumed)[3]
0.247±0.049[5]
0.35±0.13[4]
Tholen = S[1] · S[3]
B–V = 0.792[1]
U–B = 0.497[1]
11.838±0.003 (R)[11] · 12.21[4] · 12.54[1][3][5][6]

1648 Shajna, provisional designation 1935 RF, is a stony asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 5 September 1935, by Russian astronomer Pelageya Shajn at Simeiz Observatory on the Crimean peninsula.[12] Two weeks later, it was independently discovered by Cyril Jackson at Johannesburg Observatory, South Africa. It was later named after the discoverer and her husband, Russian astronomers Grigory Shajn.[2]

  1. ^ a b c d e f 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-2016 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. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Durech-2016 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Hanus-2016a was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference MPC-Shajna was invoked but never defined (see the help page).