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'''1739 Meyermann''', provisional designation {{mpf|1939 PF}}, is a stony Florian [[asteroid]] from the inner regions of the [[asteroid belt]], approximately 8 kilometers in diameter. It was discovered by German astronomer [[Karl Reinmuth]] at [[Heidelberg-Königstuhl State Observatory|Heidelberg Observatory]] on 15 August 1939.<ref name="MPC-Meyermann" />
'''1739 Meyermann''', provisional designation {{mpf|1939 PF}}, is a stony Florian [[asteroid]] from the inner regions of the [[asteroid belt]], approximately 7.5 kilometers in diameter. It was discovered by German astronomer [[Karl Reinmuth]] at [[Heidelberg-Königstuhl State Observatory|Heidelberg Observatory]] on 15 August 1939.<ref name="MPC-Meyermann" />


The asteroid is a member of the [[Flora family]], a large group of [[S-type asteroid|S-type]] asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.5&nbsp;[[Astronomical unit|AU]] once every 3 years and 5 months (1,242 days). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.12 and an [[orbital inclination|inclination]] of 3[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" /> ''Meyermann'' was first identified as {{mpf|1929 TB|1}} at [[Lowell Observatory]] in 1929, extending the body's [[observation arc]] by 10 years prior to its official discovery observation at Heidelberg.<ref name="MPC-Meyermann" />
The asteroid is a member of the [[Flora family]], a large group of [[S-type asteroid|S-type]] asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.5&nbsp;[[Astronomical unit|AU]] once every 3 years and 5 months (1,242 days). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.12 and an [[orbital inclination|inclination]] of 3[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" /> ''Meyermann'' was first identified as {{mpf|1929 TB|1}} at [[Lowell Observatory]] in 1929, extending the body's [[observation arc]] by 10 years prior to its official discovery observation at Heidelberg.<ref name="MPC-Meyermann" />
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Two rotational [[light-curve]]s of ''Meyermann'' were obtained from photometric observations taken by Czech astronomer [[Petr Pravec]] at Ondřejov Observatory in 2007 and 2014. They gave a [[rotation period]] of 2.8212 and 2.8219 hours with a brightness variation of 0.12 and 0.17 [[Magnitude (astronomy)|magnitude]], respectively ({{small|[[LCDB quality code|U=3/3]]}}).{{efn|name=LCDB-Pravce-2014}}{{efn|name=LCDB-Pravce-2007}}
Two rotational [[light-curve]]s of ''Meyermann'' were obtained from photometric observations taken by Czech astronomer [[Petr Pravec]] at Ondřejov Observatory in 2007 and 2014. They gave a [[rotation period]] of 2.8212 and 2.8219 hours with a brightness variation of 0.12 and 0.17 [[Magnitude (astronomy)|magnitude]], respectively ({{small|[[LCDB quality code|U=3/3]]}}).{{efn|name=LCDB-Pravce-2014}}{{efn|name=LCDB-Pravce-2007}}


According to the refitted 2014-results from the survey carried out by the [[Wide-field Infrared Survey Explorer|WISE]] with its [[NEOWISE]] missions, ''Meyermann'' measures 7.858 kilometers in diameter, and its surface has an [[astronomical albedo|albedo]] of 0.254.<ref name="Masiero-2014" /> The ''Collaborative Asteroid Lightcurve Link'' assumes an albedo of 0.24 – derived from [[8&nbsp;Flora]], the largest member and namesake of its family – and calculates a larger diameter of 7.47 kilometers based on an absolute magnitude of 12.8.<ref name="lcdb" />
According to the refitted 2014-results from the survey carried out by the [[Wide-field Infrared Survey Explorer]] with its [[NEOWISE]] missions, ''Meyermann'' measures 7.858 kilometers in diameter, and its surface has an [[astronomical albedo|albedo]] of 0.254.<ref name="Masiero-2014" /> The ''Collaborative Asteroid Lightcurve Link'' assumes an albedo of 0.24 – derived from [[8&nbsp;Flora]], the largest member and namesake of its family – and calculates a diameter of 7.47 kilometers based on an absolute magnitude of 12.8.<ref name="lcdb" />


This minor planet was named in memory of [[Bruno Meyermann]] (1876–1963), a classical astronomer and academic teacher at [[Göttingen Observatory]] in Lower Saxony, Germany. His fields of interest included [[polar motion]] and [[Relativistic mechanics|relativistic effects]].<ref name="springer" /> Naming citation was published before November 1977 ({{small|[[Minor Planet Circulars|M.P.C.]] 4155}}).<ref name="MPC-Circulars-Archive" />
This minor planet was named in memory of [[Bruno Meyermann]] (1876–1963), a classical astronomer and academic teacher at [[Göttingen Observatory]] in Lower Saxony, Germany. His fields of interest included [[polar motion]] and [[Relativistic mechanics|relativistic effects]].<ref name="springer" /> Naming citation was published before November 1977 ({{small|[[Minor Planet Circulars|M.P.C.]] 4155}}).<ref name="MPC-Circulars-Archive" />

Revision as of 23:07, 20 December 2016

1739 Meyermann
Discovery [1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date15 August 1939
Designations
1739 Meyermann
Named after
Bruno Meyermann
(astronomer) [2]
1939 PF · 1929 TB1
1935 GN · 1952 HN3
1953 XO1 · 1963 TG
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc86.68 yr (31,661 days)
Aphelion2.5408 AU
Perihelion1.9812 AU
2.2610 AU
Eccentricity0.1237
3.40 yr (1,242 days)
328.78°
0° 17m 23.64s / day
Inclination3.4093°
203.35°
82.076°
Physical characteristics
Dimensions6.62±0.79 km[4]
7.47 km (calculated)[3]
7.858±0.124[5]
8.688±0.063 km[6]
2.8212±0.0002 h[a]
2.8219±0.0002 h[b]
0.1961±0.0376[6]
0.24 (assumed)[3]
0.254±0.015[5]
0.336±0.116[4]
S [3]
12.63±0.27[7] · 12.7[4][6] · 12.8[1][3]

1739 Meyermann, provisional designation 1939 PF, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7.5 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 15 August 1939.[8]

The asteroid is a member of the Flora family, a large group of S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 5 months (1,242 days). Its orbit has an eccentricity of 0.12 and an inclination of 3° with respect to the ecliptic.[1] Meyermann was first identified as 1929 TB1 at Lowell Observatory in 1929, extending the body's observation arc by 10 years prior to its official discovery observation at Heidelberg.[8]

Two rotational light-curves of Meyermann were obtained from photometric observations taken by Czech astronomer Petr Pravec at Ondřejov Observatory in 2007 and 2014. They gave a rotation period of 2.8212 and 2.8219 hours with a brightness variation of 0.12 and 0.17 magnitude, respectively (U=3/3).[a][b]

According to the refitted 2014-results from the survey carried out by the Wide-field Infrared Survey Explorer with its NEOWISE missions, Meyermann measures 7.858 kilometers in diameter, and its surface has an albedo of 0.254.[5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its family – and calculates a diameter of 7.47 kilometers based on an absolute magnitude of 12.8.[3]

This minor planet was named in memory of Bruno Meyermann (1876–1963), a classical astronomer and academic teacher at Göttingen Observatory in Lower Saxony, Germany. His fields of interest included polar motion and relativistic effects.[2] Naming citation was published before November 1977 (M.P.C. 4155).[9]

References

  1. ^ a b Pravec (2014) web: rotation period 2.8212±0.0002 hours with a brightness amplitude of 0.17. Quality Code of 3. Summary figures at Asteroid Lightcurve Database for (1739) Meyermann
  2. ^ a b Pravec (2007) web: rotation period 2.8219±0.0002 hours with a brightness amplitude of 0.22. Quality Code of 3. Summary figures at Asteroid Lightcurve Database for (1739) Meyermann
  1. ^ a b c d "JPL Small-Body Database Browser: 1739 Meyermann (1939 PF)" (2016-06-16 last obs.). Jet Propulsion Laboratory. Retrieved 20 December 2016.
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1739) Meyermann. Springer Berlin Heidelberg. p. 138. ISBN 978-3-540-00238-3. Retrieved 20 December 2016.
  3. ^ a b c d e f "LCDB Data for (1739) Meyermann". Asteroid Lightcurve Database (LCDB). Retrieved 20 December 2016.
  4. ^ a b c 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. Retrieved 20 December 2016.
  5. ^ a b c 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. Retrieved 20 December 2016.
  6. ^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 20 December 2016.
  7. ^ 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. Retrieved 20 December 2016.
  8. ^ a b "1739 Meyermann (1939 PF)". Minor Planet Center. Retrieved 20 December 2016.
  9. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 20 December 2016.
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