Discovery [1] | |
---|---|
Discovered by | P. M. Henry |
Discovery site | Paris |
Discovery date | 7 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 | |
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] | |
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] [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]
1509 Esclangona, provisional designation 1938 YG, is a rare-type Hungaria asteroid and binary system from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It is named after French astronomer Ernest Esclangon.
71 Niobe is a stony Gallia asteroid and relatively slow rotator from the central regions of the asteroid belt, approximately 90 kilometers in diameter. It was discovered by the German astronomer Robert Luther on 13 August 1861, and named after Niobe, a character in Greek mythology. In 1861, the brightness of this asteroid was shown to vary by astronomer Friedrich Tietjen.
96 Aegle is a carbonaceous asteroid and the namesake of the Aegle family located in the outer regions of the asteroid belt, approximately 170 kilometers in diameter. It was discovered on 17 February 1868, by French astronomer Jérôme Coggia at the Marseille Observatory in southeastern France. The rare T-type asteroid has a rotation period of 13.8 hours and has been observed several times during occultation events. It was named after Aegle ("brightness"), one of the Hesperides from Greek mythology.
13070 Seanconnery, provisional designation 1991 RO2, is a background asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 8 September 1991, by Belgian astronomer Eric Elst at Haute-Provence Observatory, St. Michael, in southeast France. The asteroid was named after actor Sean Connery.
5653 Camarillo ( KAM-ə-REE-oh), provisional designation 1992 WD5, is a stony asteroid and near-Earth object of the Amor group, approximately 1.5 kilometers in diameter.
1335 Demoulina, provisional designation 1934 RE, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by Karl Reinmuth at Heidelberg Observatory in 1934, the asteroid was named after Prof. Demoulin, a Belgian astronomer at Ghent University. It has a slower-than average spin rate of nearly 75 hours.
1665 Gaby, provisional designation 1930 DQ, is a stony asteroid and a relatively slow rotator from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 27 February 1930, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was later named after Gaby Reinmuth, the discoverer's daughter-in-law.
2658 Gingerich, provisional designation 1980 CK, is a background asteroid and a suspected synchronous binary system from the outer regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 13 February 1980, by astronomers of the Harvard College Observatory at the George R. Agassiz Station near Harvard, Massachusetts, in the United States. The presumed carbonaceous C-type asteroid has a short rotation period of 2.9 hours. It was named after Harvard astronomer Owen Gingerich.
5905 Johnson, provisional designation 1989 CJ1, is a Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 11 February 1989, by American astronomer Eleanor Helin at Palomar Observatory in California, United States. Its satellite measures approximately 1.6 km (1 mi) in diameter and orbits its primary every 21.8 hours. It was named after American astronomer and engineer Lindley N. Johnson.
1987 Kaplan, provisional designation 1952 RH, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered on 11 September 1952, by Soviet astronomer Pelageya Shajn at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Soviet astrophysicist Samuil Kaplan.
3844 Lujiaxi, provisional designation 1966 BZ, is a Henan asteroid from the central regions of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 30 January 1966, by astronomers at the Purple Mountain Observatory in Nanking, China. The asteroid was named after Chinese chemist Lu Jiaxi.
1355 Magoeba, provisional designation 1935 HE, is a Hungaria asteroid and a suspected contact-binary from the innermost regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 30 April 1935, by English-born, South African astronomer Cyril Jackson at the Johannesburg Observatory in South Africa. The asteroid is named for Magoeba, a tribal chief in the South African Transvaal Province.
3451 Mentor is a large Jupiter trojan from the Trojan camp, approximately 120 kilometers in diameter. It was discovered on 19 April 1984, by Czech astronomer Antonín Mrkos at the Kleť Observatory in the Czech Republic. The uncommon Jovian X-type asteroid is one of the largest Jupiter trojans and has a rotation period of 7.7 hours. It was named after Mentor from Greek mythology. Mentor, a man who was rich in horse at Pedaeus. He was the father of the spearman Imbrius, an ally of the Trojans.
1906 Naef is a stony vestoid asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 5 September 1972, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland. It was later named after Swiss banker and amateur astronomer Robert A. Naef.
2328 Robeson, provisional designation 1972 HW, is a background asteroid from the inner regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 19 April 1972, by astronomer Soviet–Russian Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named after American actor and singer Paul Robeson. The C/X-type asteroid has a rotation period of 18.6 hours.
For other uses, see Steel (disambiguation).
1263 Varsavia, provisional designation 1933 FF, is an asteroid from the central region of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 23 March 1933, by Belgian astronomer Sylvain Arend at Uccle Observatory in Belgium. It is named for the city of Warsaw.
1689 Floris-Jan, provisional designation 1930 SO, is a stony asteroid and a slow rotator from the inner regions of the asteroid belt, approximately 16 kilometers in diameter. Discovered by Hendrik van Gent in 1930, it was named after a contest winner of an exhibition at Leiden Observatory.
(6382) 1988 EL is a stony Hungaria asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 14 March 1988, by American astronomer Jeffrey Alu at the U.S. Palomar Observatory, California.
6250 Saekohayashi, provisional designation 1991 VX1, is a bright Hungaria asteroid and relatively slow rotator from the inner regions of the asteroid belt, approximately 3.7 kilometers in diameter. It was discovered on 2 November 1991, by American astronomer Eleanor Helin at Palomar Observatory in California, and later named after Japanese astronomer Saeko Hayashi.