15268 Wendelinefroger

Last updated

15268 Wendelinefroger
Discovery [1]
Discovered by E. W. Elst
Discovery site La Silla Obs.
Discovery date18 November 1990
Designations
(15268) Wendelinefroger
Named after
Wendeline Froger
(Belgian singer) [2]
1990 WF3 ·1979 WA7
1986 PO5 ·1999 CD133
main-belt  ·(inner) [3]
Nysa
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 37.29 yr (13,619 days)
Aphelion 2.9209 AU
Perihelion 1.8107 AU
2.3658 AU
Eccentricity 0.2346
3.64 yr (1,329 days)
171.04°
0° 16m 15.24s / day
Inclination 2.7540°
144.06°
210.29°
Known satellites 1 [4] [a]
Physical characteristics
Dimensions 3.41 km (calculated) [3]
2.4224±0.0001 h [5]
0.20 (assumed) [3]
S [3]
14.7 [1] [3]  ·14.82±0.04 [6]

    15268 Wendelinefroger, provisional designation 1990 WF3, is a stony, spheroidal, and binary [a] Nysian asteroid from the inner regions of the asteroid belt, approximately 3.4 kilometers in diameter.

    Contents

    It was discovered on 18 November 1990, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile, and named after Belgian singer Wendeline Froger. [2] [7]

    Orbit

    The S-type asteroid orbits the Sun in the inner main-belt at a distance of 1.8–2.9  AU once every 3 years and 8 months (1,329 days). Its orbit has an eccentricity of 0.23 and an inclination of 3° with respect to the ecliptic. [1] It was first identified as 1979 WA7 at Crimea–Nauchnij in 1979, extending the asteroid's observation arc by 11 years prior to its discovery. [7]

    Physical characteristics

    Primary

    In October 2008, a rotational lightcurve was obtained from photometric observations at the Leura Observatory ( E17 ), Australia. It gave a rotation period of 2.422 hours with a low brightness variation of 0.07 magnitude, which indicates that the asteroid is of nearly spheroidal shape ( U=3 ). [5] The Collaborative Asteroid Lightcurve Link (CALL) assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 3.4 kilometer with an absolute magnitude of 14.7. [3]

    Secondary

    During the photometric observations in 2008, a minor-planet moon was also discovered, orbiting Wendelinefroger every 25.07±0.02 hours at a distance of 8.7 kilometers. [4] [5] Based on mutual occultations of Wendelinefroger and its moon, the diameter ratio for the two bodies is at least 0.24 (i.e. secondary-to-primary mean diameter ratio), [a] which translates into an estimated diameter of 0.8 kilometer or more for the asteroid's moon, using CALL's calculated diameter for the primary.

    Naming

    This minor planet is named in honour of Belgian female singer Wendeline Froger (born 1948), who has a soprano voice and performs at church celebrations, weddings and for selected audiences at her residence. She has a preference to sing Lieder by Robert Schumann, after whom the minor planet 4003 Schumann is named. [2] The approved naming citation was published by the Minor Planet Center on 12 December 2008 ( M.P.C. 64563). [8]

    Notes

    1. 1 2 3 Central Bureau for Astronomical Telegrams - No.1542, 20 October 2008
      Photometric observations obtained between 24 September and 9 October 2008, showed that 15268 Wendelinefroger is a binary system with an orbital period of 25.07±0.02 hours. The primary has a rotation period of 2.4224±0.0001 hours, with a lightcurve brightness variation of 0.07 magnitude, indicating a nearly spheroidal shape. Mutual eclipse/occultation events give a lower limit on the Ds/Dp of 0.27 (i.e. a secondary-to-primary mean-diameter ratio).
      Reported by – J. Oey, Leura Observatory, N.S.W., Australia; P. Pravec, P. Kusnirak, and K. Hornoch, Ondrejov Observatory; R. Stephens, Goat Mountain Astronomical Research Station, Yucca Valley, CA, U.S.A.; S. Gajdos and L. Kornos, Modra Observatory; and V. Chiorny, Institute of Astronomy, Kharkiv National University, Electronic Telegram No. 1542

    Related Research Articles

    9617 Grahamchapman, provisional designation 1993 FA5, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 2.8 kilometers in diameter.

    3309 Brorfelde, provisional designation 1982 BH, is a nearly spheroidal, binary Hungaria asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 28 January 1982, by Danish astronomers Kaare Jensen and Karl Augustesen at the Brorfelde Observatory near Holbæk, Denmark. It was named for the discovering observatory and the village where it is located.

    1717 Arlon, provisional designation 1954 AC, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 8.5 kilometers in diameter.

    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.

    4029 Bridges, provisional designation 1982 KC1, is a stony asteroid and binary system from the middle regions of the asteroid belt, approximately 8 kilometers in diameter.

    <span class="mw-page-title-main">1338 Duponta</span> Stony Florian asteroid and synchronous binary system

    1338 Duponta, provisional designation 1934 XA, is a stony Florian asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 7.8 kilometers in diameter.

    9260 Edwardolson, provisional designation 1953 TA1, is a Florian binary asteroid from the inner regions of the asteroid belt, approximately 4.1 kilometers in diameter. It was discovered on 8 October 1953, by Indiana University during its Indiana Asteroid Program at Goethe Link Observatory in Brooklyn, Indiana, United States. It was named for American astronomer Edward Olson.

    1453 Fennia, provisional designation 1938 ED1, is a stony Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by Yrjö Väisälä at the Turku Observatory in 1938, the asteroid was later named after the Nordic country of Finland. The system's minor-planet moon was discovered in 2007. It has a derived diameter of 1.95 kilometers and is orbiting its primary every 23.55 hours.

    7225 Huntress, provisional designation 1983 BH, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 22 January 1983, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona, United States. It is named after astrochemist Wesley Huntress.

    7088 Ishtar, provisional designation 1992 AA, is a synchronous binary asteroid and near-Earth object from the Amor group, approximately 1.3 kilometers in diameter. It was discovered on 1 January 1992, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California. The relatively bright asteroid with an unknown spectral type has a rotation period of 2.7 hours. In December 2005, a 330-meter sized satellite was discovered, orbiting its primary every 20.65 hours.

    4951 Iwamoto, provisional designation 1990 BM, is a stony, synchronous binary asteroid and slow rotator from the inner regions of the asteroid belt, approximately 5.5 kilometers in diameter. It was discovered on 21 January 1990, by Japanese astronomers Yoshikane Mizuno and Toshimasa Furuta at Kani Observatory in Japan.

    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.

    5481 Kiuchi, provisional designation 1990 CH, is a bright binary Vestian asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 15 February 1990, by Japanese astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory in Hokkaidō, Japan, and named after their colleague Tsuruhiko Kiuchi. The V-type asteroid has a rotation period of 3.6 hours.

    6244 Okamoto, provisional designation 1990 QF, is a background asteroid and binary system from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 20 August 1990, by Japanese astronomer Tsutomu Seki at the Geisei Observatory in Kōchi, Japan, and later named after Japanese school teacher Hiroshi Okamoto. The presumed S-type asteroid has a short rotation period of 2.9 hours. The discovery of its minor-planet moon was announced in October 2006.

    1830 Pogson, provisional designation 1968 HA, is a stony Florian asteroid and an asynchronous binary system from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 17 April 1968, by Swiss astronomer Paul Wild at the Zimmerwald Observatory near Bern, Switzerland. The S-type asteroid has a rotation period 2.6 of hours. It was named for English astronomer Norman Pogson. The discovery of its 2.5-kilometer sized companion was announced in May 2007.

    2815 Soma, provisional designation 1982 RL, is a binary Florian asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 15 September 1982, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Flagstaff, Arizona, in the United States. It is named for the mechanical puzzle Soma cube.

    3982 Kastelʹ, provisional designation 1984 JP1, is a Florian asteroid and a suspected binary system from the inner regions of the asteroid belt, approximately 6.9 kilometers in diameter.

    5477 Holmes, provisional designation 1989 UH2, is a Hungaria asteroid and binary system from the innermost regions of the asteroid belt, approximately 3 kilometers (2 miles) in diameter. It was discovered on 27 October 1989, by American astronomer Eleanor Helin at the Palomar Observatory in California. The presumed E-type asteroid is likely spherical in shape and has a short rotation period of 2.99 hours. It was named for American amateur astronomer Robert Holmes. The discovery of its 1-kilometer-sized minor-planet moon was announced in November 2005.

    (6265) 1985 TW3 (provisional designation 1985 TW3) is a background asteroid and binary system from the inner regions of the asteroid belt. It was discovered on 11 October 1985, by astronomer by T. F. Fric and Richard Gilbrech at the Palomar Observatory in California. It is the only minor-planet discovery for these two astronomers. The stony L-type asteroid measures approximately 5 kilometers (3.1 miles) in diameter and has a rotation period of 2.7 hours. Its 1.2-kilometer sized minor-planet moon was discovered in July 2007 and announced the following month.

    10208 Germanicus, provisional designation 1997 QN1, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 3.5 kilometers in diameter.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 15268 Wendelinefroger (1990 WF3)" (2017-03-01 last obs.). Jet Propulsion Laboratory . Retrieved 5 July 2017.
    2. 1 2 3 Schmadel, Lutz D. (2009). Dictionary of Minor Planet Names, Addendum to Fifth Edition: 2003–2005 – (15268) Wendelinefroger. Springer Berlin Heidelberg. p. 69. ISBN   978-3-642-01964-7.
    3. 1 2 3 4 5 6 "LCDB Data for (15268) Wendelinefroger". Asteroid Lightcurve Database (LCDB). Retrieved 11 November 2016.
    4. 1 2 Johnston, Robert. "(15268) Wendelinefroger". johnstonsarchive.net. Retrieved 29 May 2015.
    5. 1 2 3 Oey, J.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Stephens, R.; Gajdos, S.; et al. (October 2008). "(15268) 1990 WF3". Central Bureau Electronic Telegrams. 1542 (1542): 1. Bibcode:2008CBET.1542....1O . Retrieved 11 November 2016.
    6. ↑ 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. S2CID   53493339 . Retrieved 11 November 2016.
    7. 1 2 "15268 Wendelinefroger (1990 WF3)". Minor Planet Center. Retrieved 11 November 2016.
    8. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 11 November 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.