305 Gordonia

305 Gordonia
Lightcurve-based 3D model of 305 Gordonia
Discovery
Discovered byAuguste Charlois
Discovery date16 February 1891
Designations
Pronunciation/ɡɔːrˈdoʊniə/
A891 DA; 1938 SC1
1970 SP1
Main belt
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc123.90 yr (45255 d)
Aphelion3.69187 AU (552.296 Gm)
Perihelion2.49627 AU (373.437 Gm)
3.09407 AU (462.866 Gm)
Eccentricity0.19321
5.44 yr (1987.9 d)
43.0648°
0° 10m 51.946s / day
Inclination4.44401°
207.494°
261.346°
Physical characteristics
Dimensions49.17±1.5 km
Mass(3.3±1.3)×1017 kg
Mean density
5.87 g/cm3
12.893 h (0.5372 d)
12.89 ± 0.01 hours
0.2269±0.014
8.77

305 Gordonia is a fairly typical, although sizeable Main belt asteroid.

It was discovered by Auguste Charlois on 16 February 1891 in Nice and named after James Gordon Bennett Jr., his patron.

The light curve of 305 Gordonia shows a periodicity of 12.89 ± 0.01 hours, during which time the brightness of the object varies by 0.17 ± 0.03 in magnitude.

Notes

  1. ↑ Calculated from its standard gravitational parameter GM = 0.022±0.009 km3/s2.
  2. ↑ Assuming a diameter of 47.7 km.

References

  1. 1 2 "305 Gordonia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
  2. 1 2 Fuentes-Muñoz, Oscar; Farnocchia, Davide; Giorgini, Jon D.; Park, Ryan S. (1 December 2025). "Asteroid Mass Estimation by Mutual Perturbations During Close Encounters After Gaia Focused Product Release". The Astronomical Journal. 170 (6): 353. Bibcode:2025AJ....170..353F. doi:10.3847/1538-3881/ae0cc9. ISSN 0004-6256. S2CID 283347135.
  3. 1 2 Menke, John; et al. (October 2008), "Asteroid Lightcurve Analysis at Menke Observatory", The Minor Planet Bulletin, 35 (4): 155–160, Bibcode:2008MPBu...35..155M
  4. ↑ Dynamics of comets and asteroids and their role in earth history. Shin Yabushita, J. Henrard. p.243