1824 Haworth

Shape model of Haworth from its lightcurve

Discovery[1]
Discovered by| Indiana University
(Indiana Asteroid Program)
Discovery site| Goethe Link Obs.
Discovery date| 30 March 1952
Designations

MPC designation

| (1824) Haworth
Named after| Leland J. Haworth
(American physicist)[2]

Alternative designations

| 1952 FM * 1942 GC
1951 CA * 1952 HW
1957 HQ * 1957 LA
1974 XA
Minor planet category| main-belt * (outer)
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc| 110.25 yr (40,268 days)
|{{{apsis}}}|helion}}| 3.0071 AU
|{{{apsis}}}|helion}}| 2.7603 AU

Semi-major axis

| 2.8837 AU
Eccentricity| 0.0428
Orbital period| 4.90 yr (1,789 days)
Mean anomaly| 245.95°
Mean motion| 0° 12m 4.68s / day
Inclination| 1.9299°
Longitude of ascending node| 15.034°

|{{{apsis}}}|helion}}

| 69.949°
Physical characteristics
Dimensions| 14.169±0.197 km[3]
Geometric albedo| 0.266±0.045[3]
Absolute magnitude (H)| 11.4[1]

1824 Haworth (prov. designation: 1952 FM) is an asteroid from the outer region of the asteroid belt, approximately 14 kilometers in diameter. It was discovered on 30 March 1952, by Indiana University's Indiana Asteroid Program at its Goethe Link Observatory near Brooklyn, Indiana, United States, and named after physicist Leland John Haworth.[2][4]

## Contents

* 1 Orbit and classification
* 2 Naming
* 3 Physical characteristics
* 4 References
* 5 External links

## Orbit and classification

Haworth orbits the Sun in the outer main-belt at a distance of 2.8–3.0 AU once every 4 years and 11 months (1,789 days). Its orbit has an eccentricity of 0.04 and an inclination of 2° with respect to the ecliptic.[1]

Its first precovery was taken at Lowell Observatory in 1906, extending the body's observation arc by 46 years prior to its official discovery observation at Goethe Link.[4]

## Naming

It was named in honor of American particle physicist Leland John Haworth (1904–1979), a graduate of Indiana University and second director of the National Science Foundation.[2]

His long and varied career included teaching and serving as member of the Atomic Energy Commission, as vice-president and president of Associated Universities, Inc., and as director of the Brookhaven National Laboratory. His negotiations were instrumental for the funding of a 4-meter telescope at the Cerro Tololo Interamerican Observatory.[2] The official naming citation was published by the Minor Planet Center on 18 April 1977 (M.P.C. 4156).[5]

## Physical characteristics

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Haworth measures 14.17 kilometers in diameter and its surface has an albedo of 0.266.[3] As of 2017, its composition, rotation period and shape remain unknown.

## References

1. ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 1824 Haworth (1952 FM)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001824. Retrieved 8 June 2017.
2. ↑ 2.0 2.1 2.2 2.3 Schmadel, Lutz D. (2007). "(1824) Haworth". Dictionary of Minor Planet Names – (1824) Haworth. Springer Berlin Heidelberg. p. 146. doi:10.1007/978-3-540-29925-7_1825. ISBN 978-3-540-00238-3.
3. ↑ 3.0 3.1 3.2 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. doi:10.1088/0004-637X/791/2/121. Bibcode: 2014ApJ...791..121M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M. Retrieved 15 December 2016.
4. ↑ 4.0 4.1 "1824 Haworth (1952 FM)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=1824. Retrieved 15 December 2016.
5. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7. https://archive.org/details/dictionaryminorp2008schm.

## External links

* Asteroid Lightcurve Database (LCDB), query form (info )
* Dictionary of Minor Planet Names, Google books
* Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
* Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
* 1824 Haworth at AstDyS-2, Asteroids—Dynamic Site
* Ephemeris * Observation prediction * Orbital info * Proper elements * Observational info
* 1824 Haworth at the JPL Small-Body Database
* Close approach * Discovery * Ephemeris * Orbit diagram * Orbital elements * Physical parameters

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