148 Gallia

148 Gallia
Orbital diagram
Discovery[1]
Discovered byP. M. Henry
Discovery siteParis
Discovery date7 August 1875
Designations
(148) Gallia
Pronunciation/ˈɡæliə/[2]
Named after
Gaul[3]
(Latin name for France)
A875 PA
main-belt[1][4] · (middle)
Gallia[5]
Orbital characteristics[4]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc138.37 yr (50,540 d)
Aphelion3.2885 AU
Perihelion2.2531 AU
2.7708 AU
Eccentricity0.1868
4.61 yr (1,685 d)
278.58°
0° 12m 49.32s / day
Inclination25.291°
145.01°
252.79°
Physical characteristics
80.87±1.04 km[6]
83.45±5.07 km[7]
85.91±23.39 km[8]
97.75±3.7 km[9]
98.09 km (derived)[10]
Mass(4.89±1.67)×1018 kg[7]
Mean density
16.06±6.22 g/cm3[7]
20.6592±0.0007 h[11]
20.66±0.01 h[11]
20.664 h[12]
20.665266 h[a]
20.666±0.002 h[13][b]
0.1640±0.013[9]
0.2013 (derived)[10]
0.21±0.12[8]
0.240±0.008[6]
Tholen = GU[4]
SMASS = S[4][10]
B–V = 0.858[4]
U–B = 0.423[4]
6.97±0.84[14]
7.4[10]
7.4±0.1[15][16]
7.63[4][6][9]
7.67[8]
7.72±0.10[17]

148 Gallia is an asteroid from the central regions of the asteroid belt, approximately 90 kilometers (56 miles) in diameter. It was discovered on 7 August 1875, by the French brothers Paul Henry and Prosper Henry at the Paris, but the credit for this discovery was given to Prosper.[1] It was named after the Latin name for the country of France, Gaul.[3] Based upon its spectrum, it is an unusual G-type asteroid (GU) and a stony S-type asteroid in the Tholen and SMASS classification, respectively.[4][18]

Photometric observations of this asteroid at the European Southern Observatory in 1977–78 gave a light curve with a period of 0.86098 ± 0.00030 days (20.6635 ± 0.0072 h) and a brightness variation of 0.32 in magnitude.[12] A 2007 study at the Palmer Divide Observatory in Colorado, United States, yielded a period of 20.666 ± 0.002 hours with a magnitude variation of 0.21.[13][b]

This object is the namesake of the Gallia family (802), a small family of nearly 200 known stony asteroids that share similar spectral properties and orbital elements.[19] Hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.[20]

  1. ^ a b c Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c d e f g h Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Ferret 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 Carry-2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  10. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference Surdej-1979 was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference Warner-2007h was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Harris-1992 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 Warner-2007i was invoked but never defined (see the help page).
  18. ^ Cite error: The named reference Lazzaro-2004 was invoked but never defined (see the help page).
  19. ^ Cite error: The named reference Nesvorny-2014 was invoked but never defined (see the help page).
  20. ^ Cite error: The named reference Novakovic-2011 was invoked but never defined (see the help page).


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