148 Gallia

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148 Gallia
Orbita asteroida 148.png
Orbital diagram
Discovery [1]
Discovered by P. M. Henry
Discovery site Paris
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 arc 138.37 yr (50,540 d)
Aphelion 3.2885 AU
Perihelion 2.2531 AU
2.7708 AU
Eccentricity 0.1868
4.61 yr (1,685 d)
278.58°
0° 12m 49.32s / day
Inclination 25.291°
145.01°
252.79°
Physical characteristics
Mean diameter
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 [lower-alpha 1]
20.666±0.002 h [13] [lower-alpha 2]
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]

    Gallia (minor planet designation: 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]

    Contents

    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] [lower-alpha 2]

    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]

    Notes

    1. ↑ Warner (2011) web: modeled lightcurve gave a rotation period 20.665266 hours. Summary figures for (148) Gallia at the LCDB
    2. 1 2 Lightcurve plot of 148 Gallia, Palmer Divide Observatory, B. D. Warner (2007): rotation period 20.666±0.002 hours with a brightness amplitude of 0.21±0.02 mag. Quality code of 2+. Summary figures at the LCDB

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    References

    1. 1 2 3 "148 Gallia". Minor Planet Center. Retrieved 18 April 2018.
    2. ↑ Noah Webster (1884) A Practical Dictionary of the English Language
    3. 1 2 Schmadel, Lutz D. (2007). "(148) Gallia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 29. doi:10.1007/978-3-540-29925-7_149. ISBN   978-3-540-00238-3.
    4. 1 2 3 4 5 6 7 8 "JPL Small-Body Database Browser: 148 Gallia" (2017-10-28 last obs.). Jet Propulsion Laboratory . Retrieved 18 April 2018.
    5. ↑ "Asteroid 148 Gallia". Small Bodies Data Ferret. Retrieved 24 October 2019.
    6. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi: 10.1093/pasj/63.5.1117 . (online, AcuA catalog p. 153)
    7. 1 2 3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv: 1203.4336 , Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009 See Table 1.
    8. 1 2 3 Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv: 1606.08923 . Bibcode:2016AJ....152...63N. doi: 10.3847/0004-6256/152/3/63 .
    9. 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 22 October 2019.
    10. 1 2 3 4 "LCDB Data for (148) Gallia". Asteroid Lightcurve Database (LCDB). Retrieved 18 April 2018.
    11. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (148) Gallia". Geneva Observatory. Retrieved 18 April 2018.
    12. 1 2 Surdej, A.; Surdej, J. (September 1979). "Photoelectric lightcurves and rotation period of the minor planet 148 Gallia". Astronomy and Astrophysics Supplement Series. 37: 471–474. Bibcode:1979A&AS...37..471S . Retrieved 18 April 2018.
    13. 1 2 Warner, Brian D. (December 2007). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - March–May 2007". The Minor Planet Bulletin. 34 (4): 104–107. Bibcode:2007MPBu...34..104W. ISSN   1052-8091 . Retrieved 18 April 2018.
    14. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007.
    15. ↑ Harris, A. W.; Young, J. W.; Dockweiler, Thor; Gibson, J.; Poutanen, M.; Bowell, E. (January 1992). "Asteroid lightcurve observations from 1981". Icarus. 95 (1): 115–147.ResearchsupportedbyLowellObservatoryEndowmentandNASA. Bibcode:1992Icar...95..115H. doi:10.1016/0019-1035(92)90195-D. ISSN   0019-1035 . Retrieved 18 April 2018.
    16. ↑ Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus. 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026 . Retrieved 18 April 2018.
    17. ↑ Warner, Brian D. (December 2007). "Initial Results of a Dedicated H-G Project". The Minor Planet Bulletin. 34 (4): 113–119. Bibcode:2007MPBu...34..113W. ISSN   1052-8091 . Retrieved 18 April 2018.
    18. ↑ Lazzaro, D.; Angeli, C. A.; Carvano, J. M.; Mothé-Diniz, T.; Duffard, R.; Florczak, M. (November 2004). "S 3OS 2: the visible spectroscopic survey of 820 asteroids". Icarus. 172 (1): 179–220. Bibcode:2004Icar..172..179L. doi:10.1016/j.icarus.2004.06.006 . Retrieved 18 April 2018.
    19. ↑ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv: 1502.01628 . Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN   9780816532131.
    20. ↑ Novakovic, Bojan; Cellino, Alberto; Knezevic, Zoran (November 2011). "Families among high-inclination asteroids". Icarus. 216 (1): 69–81. arXiv: 1108.3740 . Bibcode:2011Icar..216...69N. doi:10.1016/j.icarus.2011.08.016.
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