1439 Vogtia

1439 Vogtia, provisional designation 1937 TE, is a dark Hildian asteroid from the outermost region of the asteroid belt, approximately 48 kilometers in diameter. It was discovered on 11 October 1937, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany.[9] It is named for astronomer Heinrich Vogt.[2]

1439 Vogtia

Discovery [1]
Discovered by	K. Reinmuth
Discovery site	Heidelberg Obs.
Discovery date	11 October 1937
Designations
MPC designation	(1439) Vogtia
Named after	Heinrich Vogt (astronomer)[2]
Alternative designations	1937 TE · 1953 UJ 1957 HP · 1964 FC
Minor planet category	main-belt · Hilda [3]
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc	79.07 yr (28,882 days)
Aphelion	4.4750 AU
Perihelion	3.5307 AU
Semi-major axis	4.0028 AU
Eccentricity	0.1179
Orbital period	8.01 yr (2,925 days)
Mean anomaly	250.93°
Mean motion	0° 7^m 23.16^s / day
Inclination	4.2034°
Longitude of ascending node	35.575°
Argument of perihelion	101.70°
Jupiter MOID	0.5988 AU
Physical characteristics
Dimensions	47.79 km (derived)[3] 47.87±4.0 km (IRAS:3)[4] 50.542±0.148 km[5] 52.86±1.60 km[6]
Rotation period	12.898±0.006 h[lower-alpha 1][lower-alpha 2] 12.95 h[7]
Geometric albedo	0.0425 (derived)[3] 0.043±0.003[6] 0.046±0.007[5] 0.0509±0.010 (IRAS:3)[4]
Spectral type	B–V = 0.750[1] U–B = 0.320[1] Tholen = XFU [1] · C/P [5] · XFU [3]
Absolute magnitude (H)	10.45[1][4][6] · 10.65[3][7] · 10.85±0.36[8]

Description

Vogtia is a member of the Hilda family, a large group of asteroids in an orbital resonance with the gas giant Jupiter, and thought to have originated from the Kuiper belt. It orbits the Sun at a distance of 3.5–4.5 AU once every 8.01 years (2,925 days). Its orbit has an eccentricity of 0.12 and an inclination of 4° with respect to the ecliptic.[1] Its observation arc begins at Heidelberg, 15 days after its official discovery observation, with no precoveries taken, and no prior identifications made.[9]

In the 1990s, a rotational light-curve of Vogtia was obtained during a survey of Hilda asteroids at Swedish, German and Italian observatories. It gave a well-defined rotation period of 12.95 hours with a brightness variation of 0.33 magnitude (U=3).[7] In October 2016, American astronomer Brian D. Warner obtained another light-curve at his Palmer Divide Station/CS3 in Colorado, which gave a period of 12.898 hours and an identical amplitude of 0.33 magnitude (U=3).[lower-alpha 1][lower-alpha 2]

In the Tholen taxonomy, Vogtia is classified as a rare XFU-type, while it is also described as a C/P-type asteroid.[5] According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Vogtia measures between 47.87 and 52.86 kilometers in diameter, and its surface has a low albedo between 0.043 and 0.051.[4][5][6] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0425 and a diameter of 47.79 kilometers based on an absolute magnitude of 10.65.[3]

This minor planet was named for Heinrich Vogt (1890–1968), German astronomer at University of Heidelberg.[2] He discovered the main-belt asteroid 735 Marghanna in 1912, and was a known member of the Nazi paramilitary Sturmabteilung.[10]

References

1. Warner (2016) web: rotation period 12.898±0.006 hours with a brightness amplitude of 0.33 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1439) Vogtia
2. Center for Solar System Studies: lightcurve plot for (1439) Vogtia

1. "JPL Small-Body Database Browser: 1439 Vogtia (1937 TE)" (2016-11-07 last obs.). Jet Propulsion Laboratory. Retrieved 6 January 2017.
2. Schmadel, Lutz D. (2007). "(1439) Vogtia". Dictionary of Minor Planet Names – (1439) Vogtia. Springer Berlin Heidelberg. p. 115. doi:10.1007/978-3-540-29925-7_1440. ISBN 978-3-540-00238-3.
3. "LCDB Data for (1439) Vogtia". Asteroid Lightcurve Database (LCDB). Retrieved 6 January 2017.
4. Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
5. Grav, T.; Mainzer, A. K.; Bauer, J.; Masiero, J.; Spahr, T.; McMillan, R. S.; et al. (January 2012). "WISE/NEOWISE Observations of the Hilda Population: Preliminary Results". The Astrophysical Journal. 744 (2): 15. arXiv:1110.0283. Bibcode:2012ApJ...744..197G. doi:10.1088/0004-637X/744/2/197.
6. 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. Retrieved 17 October 2019. (online, AcuA catalog p. 153)
7. Dahlgren, M.; Lahulla, J. F.; Lagerkvist, C.-I.; Lagerros, J.; Mottola, S.; Erikson, A.; et al. (June 1998). "A Study of Hilda Asteroids. V. Lightcurves of 47 Hilda Asteroids". Icarus. 133 (2): 247–285. Bibcode:1998Icar..133..247D. doi:10.1006/icar.1998.5919.
8. 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.
9. "1439 Vogtia (1937 TE)". Minor Planet Center. Retrieved 6 January 2017.
10. Ernst Klee (2005). Das Personenlexikon zum Dritten Reich. Wer war was vor und nach 1945 [Encyclopedia of persons in the Third Reich. Who's Who before and after 1945.] (in German). Frankfurt am Main 2005: Fischer Taschenbuch Verlag, Zweite aktualisierte Auflage. p. 643. ISBN 978-3-596-16048-8.CS1 maint: location (link)

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
• 1439 Vogtia at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 1439 Vogtia at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters