1722 Goffin

Last updated

1722 Goffin
Discovery [1]
Discovered by E. Delporte
Discovery site Uccle Obs.
Discovery date23 February 1938
Designations
(1722) Goffin
Named after
Edwin Goffin
(amateur astronomer) [2]
1938 EG ·1942 DJ
1950 HK ·1952 SW
1952 UQ ·1960 WB
1964 UF ·1964 VD1
main-belt  ·(middle) [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 79.09 yr (28,889 days)
Aphelion 2.6369 AU
Perihelion 2.3902 AU
2.5135 AU
Eccentricity 0.0491
3.99 yr (1,456 days)
42.038°
0° 14m 50.28s / day
Inclination 5.4668°
168.12°
283.20°
Physical characteristics
Dimensions10.290±0.118 [4]
10.44 km (taken) [3]
10.442 km [5]
10.446±0.130 km [6]
28.8±1.0 h [lower-alpha 1]
31 h [7]
0.2175 [5]
0.2191±0.0165 [6]
0.224±0.041 [4]
S (est.) [7]  · S [3]
B–V = 0.890 [1]
12.18 [3] [5] [6] [lower-alpha 1]  ·12.30 [1]  ·12.34 [7]

    1722 Goffin, provisional designation 1938 EG, is a stony asteroid from the central region of the asteroid belt, approximately 10.3 kilometers in diameter.

    Contents

    It was discovered on 23 February 1938, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle, Belgium. [8] It was later named after Belgian amateur astronomer Edwin Goffin, following a suggestion by Jean Meeus. [2]

    Orbit and classification

    Minor planet 1722 Goffin orbits the Sun at a distance of 2.4–2.6  AU once every 3 years and 12 months (1,456 days). Its orbit has an eccentricity of 0.05 and an inclination of 5° with respect to the ecliptic. [1] The body's observation arc begins 6 days after its official discovery observation. [8]

    Physical characteristics

    It is an assumed S-type asteroid, one of the most common spectral types. [3] [7] American astronomer Sherry Fieber-Beyer at NASA_Infrared_Telescope_Facility obtained VNIR spectra on July 20, 2011. The resulting spectrum analysis showed an S-IV assemblage with a derived L-chondrite mineralogy. [9]

    Lightcurves

    (1722)'s first rotational lightcurve was obtained by American astronomer Richard P. Binzel at UT Austin in October 1984. It gave a rotation period of 31 hours and an brightness variation of 0.63 magnitude ( U=2 ), [7] while Czech astronomers Petr Pravec and Adrián Galád at Ondřejov Observatory derived a period of 28.8 hours with and amplitude of 0.6 magnitude using Binzel's photmetric observations ( U=n.a. ). [lower-alpha 1]

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Goffin measures 10.29 kilometers in diameter and its surface has an albedo of 0.224 (using the 2014-published revised near-infrared albedo fits), [4] superseding a preliminary published diameter of 10.446 kilometers. [6] The Collaborative Asteroid Lightcurve Link takes Petr Pravec's 2012-revised WISE data, that gave an albedo of 0.2175 and a diameter of 10.442 kilometers. [3] [5]

    Naming

    This minor planet was named in honor of the Belgian amateur astronomer Edwin Goffin (born 1950), who has made extensive computations involving minor-planet orbits, and whose initials are indicated by the body's provisional designation, 1938 EG. [2] The official naming citation was published by the Minor Planet Center on 8 April 1982 ( M.P.C. 6832). [10]

    Notes

    1. 1 2 3 Pravec (1984) web: rotation period 28.8±1.0 hours with a brightness amplitude of 0.6 mag. Quality code is not available. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1722) Goffin and Pravec, P.; Wolf, M.; Sarounova, L. (1984)

    Related Research Articles

    <span class="mw-page-title-main">4923 Clarke</span> Asteroid

    4923 Clarke, provisional designation 1981 EO27, is a stony background asteroid from the inner regions of the asteroid belt, approximately 3.5 kilometers (2.2 miles) in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in Australia. The spheroidal S-type asteroid has a rotation period of 3.14 hours. It was named after British science fiction writer Arthur C. Clarke. On the same night, Schelte Bus also discovered 5020 Asimov.

    1052 Belgica, provisional designation 1925 VD, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 15 November 1925, by Belgian astronomer Eugène Delporte at Uccle Observatory in Belgium. It was the first minor planet discovered at Uccle Observatory, after which the minor planet 1276 Ucclia was named.

    4149 Harrison, provisional designation 1984 EZ, is a stony Eunomian asteroid from the middle region of the asteroid belt, approximately 10 kilometers in diameter. The asteroid was discovered on 9 March 1984, by American astronomer Brian Skiff at Lowell's Anderson Mesa Station in Flagstaff, Arizona, and named after musician George Harrison.

    4899 Candace, provisional designation 1988 JU, is a background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 9 May 1988, by astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California, United States. The asteroid was named after American chemist Candace Kohl.

    <span class="mw-page-title-main">1652 Hergé</span>

    1652 Hergé, provisional designation 1953 PA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 9 August 1953, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, Belgium. It was later named after Belgian cartoonist Hergé.

    6084 Bascom, provisional designation 1985 CT, is a binary Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers in diameter. It was discovered on 12 February 1985, by American astronomer couple Carolyn and Eugene Shoemaker at Palomar Observatory in California. It is named after American geologist Florence Bascom. Its satellite measures approximately 2.3 kilometers and has an orbital period of 43.51 hours.

    2033 Basilea, provisional designation 1973 CA, is a stony asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 6 February 1973, by astronomer Paul Wild at the Zimmerwald Observatory near Bern, Switzerland. The asteroid was named for the Swiss city of Basel.

    4008 Corbin, provisional designation 1977 BY, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 22 January 1977, by staff members of the Felix Aguilar Observatory's at the Leoncito Astronomical Complex in Argentina.

    1806 Derice, provisional designation 1971 LC, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered on 13 June 1971, at the Bickley site of the Perth Observatory in Western Australia, it was the first discovery of a minor planet ever made in Oceania. The asteroid was named after the wife of Dennis Harwood, staff member at Bickley.

    1736 Floirac, provisional designation 1967 RA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8.7 kilometer in diameter.

    1823 Gliese, provisional designation 1951 RD, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 4 September 1951, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. The asteroid was named after German astronomer Wilhelm Gliese.

    8116 Jeanperrin, provisional designation 1996 HA15, is a Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 4.8 kilometers (3 miles) in diameter. It was discovered on 17 April 1996, by Belgian astronomer Eric Elst at the La Silla Observatory in northern Chile. The likely stony S-type asteroid has a rotation period of 3.62 hours and a nearly round shape. It was named for French physicist and Nobel laureate Jean Baptiste Perrin. A minor-planet moon, a third the size of its primary, was discovered in 2007.

    5080 Oja, provisional designation 1976 EB, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 2 March 1976, by astronomer Claes-Ingvar Lagerkvist at the Kvistaberg Station of the Uppsala Observatory in Sweden. In 1992, it was named after Estonian–Swedish astronomer Tarmo Oja. The S-type asteroid has a rotation period of 7.222 hours.

    1473 Ounas, provisional designation 1938 UT, is a stony asteroid, suspected tumbler and a slow rotator from the middle region of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 22 October 1938, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. The asteroid was named after the Finnish Ounas river.

    1979 Sakharov, provisionally designated 2006 P-L, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 4.5 kilometers in diameter. It was discovered during the Palomar–Leiden survey in 1960, and named after Russian physicist Andrei Sakharov.

    1405 Sibelius, provisional designation 1936 RE, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 12 September 1936, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. The asteroid was named after composer Jean Sibelius.

    1530 Rantaseppä, provisional designation 1938 SG, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. Discovered by Yrjö Väisälä at Turku Observatory in 1938, it was later named after Finnish astronomer Hilkka Rantaseppä-Helenius.

    2195 Tengström, provisional designation 1941 SP1, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 27 September 1941, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland, and named for Swedish geodesist Erik Tengström.

    1573 Väisälä, provisional designation 1949 UA, is a stony Phocaea asteroid, slow rotator and suspected tumbler from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 27 October 1949, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, Belgium. It was named for Finnish astronomer Yrjö Väisälä.

    (8201) 1994 AH2 is a highly eccentric, rare-type asteroid, classified as near-Earth object of the Apollo group of asteroids, approximately 2 kilometers in diameter. It was discovered on 5 January 1994, by Australian amateur astronomer Gordon Garradd during the AANEAS survey at the Siding Spring Observatory, Australia. It has an Earth minimum orbit intersection distance of 0.1 AU (15 million km) and is associated with the Beta Taurids daytime meteor shower.

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1722 Goffin (1938 EG)" (2017-03-29 last obs.). Jet Propulsion Laboratory . Retrieved 7 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1722) Goffin". Dictionary of Minor Planet Names – (1722) Goffin. Springer Berlin Heidelberg. p. 137. doi:10.1007/978-3-540-29925-7_1723. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (1722) Goffin". Asteroid Lightcurve Database (LCDB). Retrieved 21 December 2016.
    4. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121 . Retrieved 21 December 2016.
    5. 1 2 3 4 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 21 December 2016.
    6. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
    7. 1 2 3 4 5 Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus. 72 (1): 135–208. Bibcode:1987Icar...72..135B. doi:10.1016/0019-1035(87)90125-4. ISSN   0019-1035 . Retrieved 21 December 2016.
    8. 1 2 "1722 Goffin (1938 EG)". Minor Planet Center. Retrieved 21 December 2016.
    9. ↑ Fieber-Beyer, S. K. and Gaffey, M. J. Icarus 229 (2014) 99–108
    10. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 21 December 2016.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.