1047 Geisha

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1047 Geisha
Discovery[1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date17 November 1924
Designations
Named after
The Geisha[2]
(British musical)
1924 TE · 1932 BP
1941 YG · 1947 NC
1950 JF · Template:Mp
A916 HB
main-belt · (inner)
Flora[3][4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc92.63 yr (33,833 d)
Aphelion2.6723 AU
Perihelion1.8094 AU
2.2409 AU
Eccentricity0.1925
3.35 yr (1,225 days)
256.96°
Template:Deg2DMS / day
Inclination5.6667°
78.223°
300.39°
Physical characteristics
Dimensions9.96±2.15 km[5]
10.555±0.095 km[6]
10.729±0.112 km[7]
11.52 km (calculated)[3]
25.62±0.02 h[8]
0.24 (assumed)[3]
0.277±0.029[7]
0.2897±0.0802[6]
0.30±0.13[5]
Tholen = S[1] · S[3]
B–V = 0.913[1]
U–B = 0.541[1]
11.86[1][3][6] · 12.20[5]
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1047 Geisha, provisional designation Template:Mp, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 17 November 1924, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany.[9] The asteroid was named after the British musical The Geisha.[2]

Orbit and classification

Geisha is a member of the Flora family (402),[3][4] a giant asteroid family and the largest family of stony asteroids in the main-belt.[10]Template:Rp It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,225 days; semi-major axis 2.24 AU). Its orbit has an eccentricity of 0.19 and an inclination of 6° with respect to the ecliptic.[1]

The asteroid was first observed as Template:Mp at Heidelberg in April 1916. The body's observation arc begins with its official discovery observation in November 1924.[9]

Physical characteristics

In the Tholen classification, Geisha is stony S-type asteroid,[1] which is also the overall spectral type for members of the Flora family.[10]Template:Rp

Rotation period

In February 2006, a rotational lightcurve of Geisha was obtained from photometric observations by Italian amateur astronomer Laurent Bernasconi. Lightcurve analysis gave a somewhat longer-than-average rotation period of 25.62 hours with a brightness amplitude of 0.33 magnitude (U=3-).[8]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Geisha measures between 9.96 and 10.729 kilometers in diameter and its surface has an albedo between 0.277 and 0.30.[5][6][7]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, namesake and parent body of the Flora family – and calculates a diameter of 11.52 kilometers based on an absolute magnitude of 11.86.[3]

Naming

This minor planet was named after the British musical The Geisha, a story of a tea house (1896). The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 100).[2]

References

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  1. ^ a b c d e f g h Page Module:Citation/CS1/styles.css has no content."JPL Small-Body Database Browser: 1047 Geisha (1924 TE)" (2017-07-05 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 11 January 2018.
  2. ^ a b c Page Module:Citation/CS1/styles.css has no content.Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1047) Geisha. Springer Berlin Heidelberg. p. 89. ISBN 978-3-540-00238-3.
  3. ^ a b c d e f g Template:Cite LCDB
  4. ^ a b Page Module:Citation/CS1/styles.css has no content."Asteroid 1047 Geisha – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 24 October 2019.
  5. ^ a b c d Page Module:Citation/CS1/styles.css has no content.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. S2CID 119289027.
  6. ^ a b c d Page Module:Citation/CS1/styles.css has no content.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. S2CID 118700974.
  7. ^ a b c Page Module:Citation/CS1/styles.css has no content.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. S2CID 119293330.
  8. ^ a b Page Module:Citation/CS1/styles.css has no content.Behrend, Raoul. "Asteroids and comets rotation curves – (1047) Geisha". Geneva Observatory. Retrieved 11 January 2018.
  9. ^ a b Page Module:Citation/CS1/styles.css has no content."1047 Geisha (1924 TE)". Minor Planet Center. Retrieved 11 January 2018.
  10. ^ a b Page Module:Citation/CS1/styles.css has no content.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. S2CID 119280014.

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