1400 Tirela

1400 Tirela
Modelled shape of Tirela from its lightcurve
Discovery[1]
Discovered byL. Boyer
Discovery siteAlgiers Obs.
Discovery date17 November 1936
Designations
(1400) Tirela
Named after
Charles Tirel[2]
(discoverer's friend)
1936 WA · 1930 UQ
main-belt · (outer)[3]
Tirela[4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc86.96 yr (31,762 days)
Aphelion3.8513 AU
Perihelion2.4001 AU
3.1257 AU
Eccentricity0.2322
5.53 yr (2,018 days)
316.88°
0° 10m 42.24s / day
Inclination15.631°
210.10°
111.65°
Physical characteristics
13.356 h[8]
  • (58.0°, −80.0°) (λ1/β1)[4]
  • (297.0°, −41.0°) (λ2/β2)[4]
0.216±0.031[6]
0.2165±0.0309[7]
0.227±0.022[5]
C (assumed)[3]
11.3[7] · 11.4[1][3] · 11.50[5]

1400 Tirela (prov. designation: 1936 WA) is an asteroid and the parent body of the Tirela family, located in the outer regions of the asteroid belt. It was discovered on 17 November 1936, by French astronomer Louis Boyer at the Algiers Observatory in North Africa.[9] The asteroid has a rotation period of 13.4 hours and measures approximately 16 kilometers (9.9 miles) in diameter. It was named after Charles Tirel, a friend of the discoverer.[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 Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Ferret was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Szekely-2005 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).