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1270 Datura
Lightcurve-based 3D-model of Datura
Discovery [1]
Discovered by G. van Biesbroeck
Discovery site Yerkes Obs.
Discovery date17 December 1930
Designations
(1270) Datura
Pronunciation /dəˈtʊərə, -tjʊərə/ [2]
Named after
 Datura stramonium [3]
(flowering plant)
1930 YE · 1953 XF1
A913 VB
main-belt [1] [4] · ( inner)
Datura [5]
Orbital characteristics [4]
Epoch 23 March 2018 ( JD 2458200.5)
Uncertainty parameter 0
Observation arc87.43 yr (31,934 d)
Aphelion2.7003 AU
Perihelion1.7681 AU
2.2342 AU
Eccentricity0.2086
3.34 yr (1,220 d)
122.36 °
0° 17m 42.36s / day
Inclination5.9859°
97.802°
258.98°
Physical characteristics
7.83±0.37  km [6]
8.203±0.152 km [7] [8]
3.359  h [9]
0.288 [7] [8]
0.291 [6]
S [9]
12.40 [7] [8]
12.50 [1] [4] [6]
12.61±0.12 [10] [11]

1270 Datura, provisional designation 1930 YE is a stony asteroid and namesake of the young Datura family, located in the inner regions of the asteroid belt, approximately 8 kilometers (5 miles) in diameter. It was discovered on 17 December 1930, by Belgian–American George Van Biesbroeck at the Yerkes Observatory in Williams Bay, Wisconsin, United States. [1] The S-type asteroid has a rotation period of 3.4 hours. [12] It was named after the flowering plant Datura. [3]

Orbit and classification

Datura is the principal body of the tiny Datura family ( 411) located within the Flora family region ( 402), [5] which is one of the largest clans of asteroid families. [13] The Datura family is thought to have recently formed from the collisional destruction of a larger parent body some 450–600 thousand years ago. [9] [14]

The asteroid orbits the Sun in the inner asteroid belt at a distance of 1.8–2.7  AU once every 3 years and 4 months (1,220 days; semi-major axis of 2.23 AU). Its orbit has an eccentricity of 0.21 and an inclination of 6 ° with respect to the ecliptic. [4] In November 1913, Datura was first observed as A913 VB at Winchester Observatory ( 799) in Massachusetts, United States. The body's observation arc begins with its official discovery observation at Williams Bay in December 1930. [1]

Naming

This minor planet was named after the Datura, a genus of poisonous flowering plants. [3] The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 116). [3]

Physical characteristics

Datura's spectrum is similar to that of an old S-type asteroid, thought to consist of silicate rocks covered with regolith with composition known from ordinary chondrite. [9] This is in agreement with the overall spectral type of both the Datura and the encompassing Flora family. [15]: 23 

Rotation period

In February 2008, a rotational lightcurve of Datura was obtained from photometric observations by Naruhisa Takato using the Subaru Telescope on Hawaii. Lightcurve analysis gave a sidereal rotation period of 3.359±0.001 hours with a brightness amplitude of 0.46 magnitude ( U=3). [9] The result is similar to observations by Wisniewski (3.2 h), [11] Vokrouhlický (3.3583 h), [14] and Székely (3.4 h). [16]

In 2013, lightcurve modelling by an international study using photometric data from the US Naval Observatory, the Uppsala Asteroid Photometric Catalogue and the Palmer Divide Observatory, gave a concurring rotation period of 3.358100 hours as well as a spin axis of (0°, 59.0°) in ecliptic coordinates (λ, β). [17] An improved spin-axis determination by Vokrouhlický gave two poles at (60.0°, 76.0°) and (264.0°, 77.0°), respectively. [14]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Datura measures 7.83 and 8.20 kilometers in diameter and its surface has an albedo of 0.291 and 0.288, respectively. [6] [7] [8] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – taken from 8 Flora, the principal body of the Flora family – and derives a diameter of 8.15 kilometers based on an absolute magnitude of 12.61. [12]

References

  1. ^ a b c d e "1270 Datura (1930 YE)". Minor Planet Center. Retrieved 31 July 2018.
  2. ^ "Datura". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ a b c d Schmadel, Lutz D. (2007). "(1270) Datura". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 105. doi: 10.1007/978-3-540-29925-7_1271. ISBN  978-3-540-00238-3.
  4. ^ a b c d "JPL Small-Body Database Browser: 1270 Datura (1930 YE)" (2018-05-23 last obs.). Jet Propulsion Laboratory. Retrieved 31 July 2018.
  5. ^ a b "Asteroid 1270 Datura". Small Bodies Data Ferret. Retrieved 31 July 2018.
  6. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode: 2011PASJ...63.1117U. doi: 10.1093/pasj/63.5.1117. ( online, AcuA catalog p. 153)
  7. ^ a b c d Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System: EAR-A-COMPIL-5-NEOWISEDIAM-V1.0. Bibcode: 2016PDSS..247.....M. Retrieved 30 August 2018.
  8. ^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794. Bibcode: 2012ApJ...759L...8M. doi: 10.1088/2041-8205/759/1/L8.
  9. ^ a b c d e Takato, Naruhisa (October 2008). "Rotation-Resolved Spectroscopy of a Very Young Asteroid, (1270) Datura". The Astrophysical Journal Letters. 685 (2): L161. arXiv: 0808.2248. Bibcode: 2008ApJ...685L.161T. doi: 10.1086/592569.
  10. ^ 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 30 August 2018.
  11. ^ a b Wisniewski, W. Z.; Michalowski, T. M.; Harris, A. W.; McMillan, R. S. (April 1997). "Photometric Observations of 125 Asteroids". Icarus. 126 (2): 395–449. Bibcode: 1997Icar..126..395W. doi: 10.1006/icar.1996.5665. Retrieved 30 August 2018.
  12. ^ a b "LCDB Data for (1270) Datura". Asteroid Lightcurve Database (LCDB). Retrieved 30 August 2018.
  13. ^ 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.
  14. ^ a b c Vokrouhlický, D.; Durech, J.; Michalowski, T.; Krugly, Yu. N.; Gaftonyuk, N. M.; Kryszczynska, A.; et al. (November 2009). "Datura family: the 2009 update" (PDF). Astronomy and Astrophysics. 507 (1): 495–504. Bibcode: 2009A&A...507..495V. doi: 10.1051/0004-6361/200912696. Retrieved 30 August 2018.
  15. ^ Nesvorny, D.; Vokrouhlický, D.; Bottke, W. F. (June 2006). "The Breakup of a Main-Belt Asteroid 450 Thousand Years Ago" (PDF). Science. 312 (5779): 1490. Bibcode: 2006Sci...312.1490N. doi: 10.1126/science.1126175. PMID  16763141. Retrieved 31 July 2018.
  16. ^ Székely, P.; Kiss, L. L.; Szabó, Gy. M.; Sárneczky, K.; Csák, B.; Váradi, M.; et al. (August 2005). "CCD photometry of 23 minor planets". Planetary and Space Science. 53 (9): 925–936. arXiv: astro-ph/0504462. Bibcode: 2005P&SS...53..925S. doi: 10.1016/j.pss.2005.04.006. Retrieved 30 August 2018.
  17. ^ Durech, J.; Kaasalainen, M.; Warner, B. D.; Fauerbach, M.; Marks, S. A.; Fauvaud, S.; et al. (January 2009). "Asteroid models from combined sparse and dense photometric data" (PDF). Astronomy and Astrophysics. 493 (1): 291–297. Bibcode: 2009A&A...493..291D. doi: 10.1051/0004-6361:200810393. Retrieved 24 August 2017.

External links

Retrieved from " https://en.wikipedia.org/?title=1270_Datura&oldid=1230829110"
From Wikipedia, the free encyclopedia

1270 Datura
Lightcurve-based 3D-model of Datura
Discovery [1]
Discovered by G. van Biesbroeck
Discovery site Yerkes Obs.
Discovery date17 December 1930
Designations
(1270) Datura
Pronunciation /dəˈtʊərə, -tjʊərə/ [2]
Named after
 Datura stramonium [3]
(flowering plant)
1930 YE · 1953 XF1
A913 VB
main-belt [1] [4] · ( inner)
Datura [5]
Orbital characteristics [4]
Epoch 23 March 2018 ( JD 2458200.5)
Uncertainty parameter 0
Observation arc87.43 yr (31,934 d)
Aphelion2.7003 AU
Perihelion1.7681 AU
2.2342 AU
Eccentricity0.2086
3.34 yr (1,220 d)
122.36 °
0° 17m 42.36s / day
Inclination5.9859°
97.802°
258.98°
Physical characteristics
7.83±0.37  km [6]
8.203±0.152 km [7] [8]
3.359  h [9]
0.288 [7] [8]
0.291 [6]
S [9]
12.40 [7] [8]
12.50 [1] [4] [6]
12.61±0.12 [10] [11]

1270 Datura, provisional designation 1930 YE is a stony asteroid and namesake of the young Datura family, located in the inner regions of the asteroid belt, approximately 8 kilometers (5 miles) in diameter. It was discovered on 17 December 1930, by Belgian–American George Van Biesbroeck at the Yerkes Observatory in Williams Bay, Wisconsin, United States. [1] The S-type asteroid has a rotation period of 3.4 hours. [12] It was named after the flowering plant Datura. [3]

Orbit and classification

Datura is the principal body of the tiny Datura family ( 411) located within the Flora family region ( 402), [5] which is one of the largest clans of asteroid families. [13] The Datura family is thought to have recently formed from the collisional destruction of a larger parent body some 450–600 thousand years ago. [9] [14]

The asteroid orbits the Sun in the inner asteroid belt at a distance of 1.8–2.7  AU once every 3 years and 4 months (1,220 days; semi-major axis of 2.23 AU). Its orbit has an eccentricity of 0.21 and an inclination of 6 ° with respect to the ecliptic. [4] In November 1913, Datura was first observed as A913 VB at Winchester Observatory ( 799) in Massachusetts, United States. The body's observation arc begins with its official discovery observation at Williams Bay in December 1930. [1]

Naming

This minor planet was named after the Datura, a genus of poisonous flowering plants. [3] The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 116). [3]

Physical characteristics

Datura's spectrum is similar to that of an old S-type asteroid, thought to consist of silicate rocks covered with regolith with composition known from ordinary chondrite. [9] This is in agreement with the overall spectral type of both the Datura and the encompassing Flora family. [15]: 23 

Rotation period

In February 2008, a rotational lightcurve of Datura was obtained from photometric observations by Naruhisa Takato using the Subaru Telescope on Hawaii. Lightcurve analysis gave a sidereal rotation period of 3.359±0.001 hours with a brightness amplitude of 0.46 magnitude ( U=3). [9] The result is similar to observations by Wisniewski (3.2 h), [11] Vokrouhlický (3.3583 h), [14] and Székely (3.4 h). [16]

In 2013, lightcurve modelling by an international study using photometric data from the US Naval Observatory, the Uppsala Asteroid Photometric Catalogue and the Palmer Divide Observatory, gave a concurring rotation period of 3.358100 hours as well as a spin axis of (0°, 59.0°) in ecliptic coordinates (λ, β). [17] An improved spin-axis determination by Vokrouhlický gave two poles at (60.0°, 76.0°) and (264.0°, 77.0°), respectively. [14]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Datura measures 7.83 and 8.20 kilometers in diameter and its surface has an albedo of 0.291 and 0.288, respectively. [6] [7] [8] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – taken from 8 Flora, the principal body of the Flora family – and derives a diameter of 8.15 kilometers based on an absolute magnitude of 12.61. [12]

References

  1. ^ a b c d e "1270 Datura (1930 YE)". Minor Planet Center. Retrieved 31 July 2018.
  2. ^ "Datura". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ a b c d Schmadel, Lutz D. (2007). "(1270) Datura". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 105. doi: 10.1007/978-3-540-29925-7_1271. ISBN  978-3-540-00238-3.
  4. ^ a b c d "JPL Small-Body Database Browser: 1270 Datura (1930 YE)" (2018-05-23 last obs.). Jet Propulsion Laboratory. Retrieved 31 July 2018.
  5. ^ a b "Asteroid 1270 Datura". Small Bodies Data Ferret. Retrieved 31 July 2018.
  6. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode: 2011PASJ...63.1117U. doi: 10.1093/pasj/63.5.1117. ( online, AcuA catalog p. 153)
  7. ^ a b c d Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System: EAR-A-COMPIL-5-NEOWISEDIAM-V1.0. Bibcode: 2016PDSS..247.....M. Retrieved 30 August 2018.
  8. ^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794. Bibcode: 2012ApJ...759L...8M. doi: 10.1088/2041-8205/759/1/L8.
  9. ^ a b c d e Takato, Naruhisa (October 2008). "Rotation-Resolved Spectroscopy of a Very Young Asteroid, (1270) Datura". The Astrophysical Journal Letters. 685 (2): L161. arXiv: 0808.2248. Bibcode: 2008ApJ...685L.161T. doi: 10.1086/592569.
  10. ^ 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 30 August 2018.
  11. ^ a b Wisniewski, W. Z.; Michalowski, T. M.; Harris, A. W.; McMillan, R. S. (April 1997). "Photometric Observations of 125 Asteroids". Icarus. 126 (2): 395–449. Bibcode: 1997Icar..126..395W. doi: 10.1006/icar.1996.5665. Retrieved 30 August 2018.
  12. ^ a b "LCDB Data for (1270) Datura". Asteroid Lightcurve Database (LCDB). Retrieved 30 August 2018.
  13. ^ 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.
  14. ^ a b c Vokrouhlický, D.; Durech, J.; Michalowski, T.; Krugly, Yu. N.; Gaftonyuk, N. M.; Kryszczynska, A.; et al. (November 2009). "Datura family: the 2009 update" (PDF). Astronomy and Astrophysics. 507 (1): 495–504. Bibcode: 2009A&A...507..495V. doi: 10.1051/0004-6361/200912696. Retrieved 30 August 2018.
  15. ^ Nesvorny, D.; Vokrouhlický, D.; Bottke, W. F. (June 2006). "The Breakup of a Main-Belt Asteroid 450 Thousand Years Ago" (PDF). Science. 312 (5779): 1490. Bibcode: 2006Sci...312.1490N. doi: 10.1126/science.1126175. PMID  16763141. Retrieved 31 July 2018.
  16. ^ Székely, P.; Kiss, L. L.; Szabó, Gy. M.; Sárneczky, K.; Csák, B.; Váradi, M.; et al. (August 2005). "CCD photometry of 23 minor planets". Planetary and Space Science. 53 (9): 925–936. arXiv: astro-ph/0504462. Bibcode: 2005P&SS...53..925S. doi: 10.1016/j.pss.2005.04.006. Retrieved 30 August 2018.
  17. ^ Durech, J.; Kaasalainen, M.; Warner, B. D.; Fauerbach, M.; Marks, S. A.; Fauvaud, S.; et al. (January 2009). "Asteroid models from combined sparse and dense photometric data" (PDF). Astronomy and Astrophysics. 493 (1): 291–297. Bibcode: 2009A&A...493..291D. doi: 10.1051/0004-6361:200810393. Retrieved 24 August 2017.

External links

Retrieved from " https://en.wikipedia.org/?title=1270_Datura&oldid=1230829110"

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