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| minorplanet = yes
| minorplanet = yes
| name = 1739 Meyermann
| name = 1739 Meyermann
| background = #FFFFC0
| background = #D6D6D6
| image =
| image =
| caption =
| caption =
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| mp_category = [[main-belt]]{{·}}[[Flora family|Flora]]&thinsp;<ref name="lcdb" />
| mp_category = [[main-belt]]{{·}}[[Flora family|Flora]]&thinsp;<ref name="lcdb" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| epoch = 13 January 2016 ([[Julian day|JD]] 2457400.5)
| epoch = 16 February 2017 ([[Julian day|JD]] 2457800.5)
| uncertainty = 0
| uncertainty = 0
| observation_arc = 86.43 yr (31568 days)
| observation_arc = 86.68 yr (31,661 days)
| aphelion = {{Convert|2.5424|AU|Gm|abbr=on|lk=on}}
| aphelion = 2.5408 [[Astronomical unit|AU]]
| perihelion = {{Convert|1.9800|AU|Gm|abbr=on}}
| perihelion = 1.9812 AU
| semimajor = {{Convert|2.2612|AU|Gm|abbr=on}}
| semimajor = 2.2610 AU
| eccentricity = 0.12436
| eccentricity = 0.1237
| period = 3.40 [[Julian year (astronomy)|yr]] (1242.0 [[Julian year (astronomy)|d]])
| period = 3.40 [[Julian year (astronomy)|yr]] (1,242 days)
| mean_anomaly = 212.97[[Degree (angle)|°]]
| mean_anomaly = 328.78[[Degree (angle)|°]]
| mean_motion = {{Deg2DMS|0.2899|sup=ms}} / day
| mean_motion = {{Deg2DMS|0.2899|sup=ms}} / day
| inclination = 3.4071°
| inclination = 3.4093°
| asc_node = 203.37°
| asc_node = 203.35°
| arg_peri = 81.980°
| arg_peri = 82.076°
| dimensions = {{val|8.688|0.063}} km<ref name="WISE" /><br />{{val|6.62|0.79}} km<ref name="Masiero-2012" /><br />7.47 km {{small|(calculated)}}<ref name="lcdb" />
| dimensions = {{val|6.62|0.79}} km<ref name="Masiero-2012" /><br />7.47 km {{small|(calculated)}}<ref name="lcdb" /><br />{{val|7.858|0.124}}<ref name="Masiero-2014" /><br />{{val|8.688|0.063}} km<ref name="WISE" />
| rotation = {{val|2.8219|0.0002}} [[Hour|h]]{{efn|name=LCDB-Pravce-2007}}<br />{{val|2.8212|0.0002}} h{{efn|name=LCDB-Pravce-2014}}
| rotation = {{val|2.8212|0.0002}} [[Hour|h]]{{efn|name=LCDB-Pravce-2014}}<br />{{val|2.8219|0.0002}} h{{efn|name=LCDB-Pravce-2007}}
| albedo = {{val|0.1961|0.0376}}<ref name="WISE" /><br />{{val|0.336|0.116}}<ref name="Masiero-2012" /><br />0.24 {{small|(assumed)}}<ref name="lcdb" />
| albedo = {{val|0.1961|0.0376}}<ref name="WISE" /><br />0.24 {{small|(assumed)}}<ref name="lcdb" /><br />{{val|0.254|0.015}}<ref name="Masiero-2014" /><br />{{val|0.336|0.116}}<ref name="Masiero-2012" />
| spectral_type = [[S-type asteroid|S]]&thinsp;<ref name="lcdb" />
| spectral_type = [[S-type asteroid|S]]&thinsp;<ref name="lcdb" />
| abs_magnitude = {{val|12.63|0.27}}<ref name="Veres-2015" /><br />12.7<ref name="WISE" /><ref name="Masiero-2012" /><br />12.8<ref name="jpldata" /><ref name="lcdb" />
| abs_magnitude = {{val|12.63|0.27}}<ref name="Veres-2015" />{{·}}12.7<ref name="Masiero-2012" /><ref name="WISE" />{{·}}12.8<ref name="jpldata" /><ref name="lcdb" />
}}
}}


'''1739 Meyermann''', provisional designation 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 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" />


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 3.40 years (1,241 days). Its orbit shows an [[orbital eccentricity|eccentricity]] of 0.12 and is [[orbital inclination|inclined]] by 3 degrees to the plane of the [[ecliptic]]. It has a [[rotation period]] of 2.822 hours and an [[geometric albedo|albedo]] of 0.20 and 0.37, according to preliminary results from the surveys carried out by the [[Wide-field Infrared Survey Explorer|WISE]] and [[NEOWISE]] missions, respectively.<ref name="WISE" /><ref name="Masiero-2012" />
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" />


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}}
⚫
The 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" />

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" />

⚫
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" />


== References ==
== References ==
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|doi = 10.1016/j.icarus.2015.08.007
|doi = 10.1016/j.icarus.2015.08.007
|arxiv = 1506.00762
|arxiv = 1506.00762
|access-date= 20 December 2016}}</ref>

<ref name="Masiero-2014">{{cite journal
|display-authors = 6
|first1 = Joseph R. |last1 = Masiero
|first2 = T. |last2 = Grav
|first3 = A. K. |last3 = Mainzer
|first4 = C. R. |last4 = Nugent
|first5 = J. M. |last5 = Bauer
|first6 = R. |last6 = Stevenson
|first7 = S. |last7 = Sonnett
|date = August 2014
|title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M
|journal = The Astrophysical Journal
|volume = 791
|issue = 2
|page = 11
|bibcode = 2014ApJ...791..121M
|doi = 10.1088/0004-637X/791/2/121
|arxiv = 1406.6645
|access-date= 20 December 2016}}</ref>
|access-date= 20 December 2016}}</ref>


Revision as of 23:03, 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 8 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 WISE 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 larger 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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