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{{Infobox Planet
{{Infobox planet
| minorplanet = yes
| width = 25em
| name = 1739 Meyermann
| bgcolour = #FFFFC0
| background = #FFFFC0
| apsis =
| image =
| name = Meyermann
| symbol =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| image =
| discovered = 15 August 1939
| caption =
| discoverer = [[Karl Reinmuth|K. Reinmuth]]
| discovery = yes
| discovery_site = [[Heidelberg-Königstuhl State Observatory|Heidelberg Obs.]]
| discovery_ref =
| mp_name = 1739 Meyermann
| discoverer = [[Karl Wilhelm Reinmuth|K. Reinmuth]]
| alt_names = 1939 PF{{·}}{{mp|1929 TB|1}}<br />1935 GN{{·}}{{mp|1952 HN|3}}<br />{{mp|1953 XO|1}}{{·}}1963 TG
| discovery_site = [[Landessternwarte Heidelberg-Königstuhl|Heidelberg]]
| named_after = [[Bruno Meyermann]]<br />{{small|(astronomer)}}<ref name="springer" />
| discovered = August 15, 1939
| mp_category = [[main-belt]]{{·}}[[Flora family|Flora]]&thinsp;<ref name="lcdb" />
| designations = yes
| orbit_ref = &thinsp;<ref name="jpldata" />
| mp_name = 1739
| epoch = 27 June 2015 ([[Julian day|JD]] 2457200.5)
| alt_names = 1939 PF
| mp_category =
| uncertainty = 0
| observation_arc = {{nowrap|86.00 yr (31,412 days)}}
| orbit_ref =
| aphelion = 2.5423 [[Astronomical unit|AU]]
| epoch = May 14, 2008
| perihelion = 1.9787 AU
| aphelion = 2.5406220
| semimajor = 2.2605 AU
| perihelion = 1.9819802
| eccentricity = 0.1246
| semimajor =
| period = 3.40 [[Julian year (astronomy)|yr]] (1,241 days)
| eccentricity = 0.1235222
| mean_anomaly = 154.94[[degree (angle)|°]]
| period = 1242.0412327
| inclination = 3.4070°
| avg_speed =
| asc_node = 203.38°
| inclination = 3.40460
| arg_peri = 81.997°
| asc_node = 203.42131
| dimensions = {{val|8.688|0.063}} km<ref name="WISE" /><br />{{val|6.62|0.79}} km<ref name="Masiero-2012" /><br />8.19 km {{small|(caculated)}}<ref name="lcdb" />
| mean_anomaly = 121.21618
| rotation = {{val|2.8219|0.0002}}[[hour|h]]{{efn|name=lcdb}}<br />{{val|2.8212|0.0002}} h{{efn|name=lcdb}}
| arg_peri = 82.06607
| 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" />
| satellites =
| spectral_type = [[S-type asteroid|S]]&thinsp;<ref name="lcdb" />
| physical_characteristics = yes
| abs_magnitude = 12.6
| dimensions =
| mass =
| density =
| surface_grav =
| escape_velocity =
| sidereal_day =
| axial_tilt =
| pole_ecliptic_lat =
| pole_ecliptic_lon =
| albedo =
| temperatures=
| temp_name1 =
| mean_temp_1 =
| max_temp_1 =
| temp_name2 =
| max_temp_2 =
| spectral_type =
| abs_magnitude = 12.9
}}
}}
'''1739 Meyermann''' (1939 PF) is a [[Asteroid belt|main-belt]] [[asteroid]] discovered on August 15, 1939 by [[Karl Wilhelm Reinmuth|K. Reinmuth]] at [[Landessternwarte Heidelberg-Königstuhl|Heidelberg]].


'''1739 Meyermann''', provisional designation 1939 PF, is a stony [[asteroid]] from the inner regions of the [[asteroid belt]], about 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" />
==External links==

*{{JPL Small Body}}
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 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" />

== References ==
{{notelist|refs=

{{efn|name=lcdb|1=Pravec (2007) web: rotation period {{val|2.8219|0.0002}} hours and Pravec (2014) web {{val|2.8212|0.0002}}, with a brightness amplitude of {{val|0.22}} and {{val|0.17}}, respectively. Summary figures at {{URL|1=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1739%7CMeyermann|2=Asteroid Lightcurve Database for (1739) Meyermann}}}}

}} <!-- end of notelist -->

{{reflist
|refs=

<ref name="lcdb">{{cite web
|title=LCDB Data for (1739) Meyermann
|publisher=Asteroid Lightcurve Database (LCDB)
|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1739%7CMeyermann
|accessdate=November 2015}}</ref>

<ref name="jpldata">{{cite web
|type=2015-10-11 last obs.
|title=JPL Small-Body Database Browser: 1739 Meyermann (1939 PF)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001739
|publisher=Jet Propulsion Laboratory
|accessdate=November 2015}}</ref>

<ref name="springer">{{cite book
|url=http://link.springer.com/referenceworkentry/10.1007/978-3-540-29925-7_1740
|title=Dictionary of Minor Planet Names – (1739) Meyermann
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=138
|date=2003
|isbn=978-3-540-29925-7
|accessdate=November 2015}}</ref>

<ref name="MPC-Meyermann">{{cite web
|title=1739 Meyermann (1939 PF)
|work=Minor Planet Center
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=1739
|accessdate=November 2015}}</ref>

<ref name="WISE">{{cite journal
|authors = Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; McMillan, R. S.; Spahr, T.; Cutri, R. M.; Wright, E.; Watkins, J.; Mo, W.; Maleszewski, C.
|date = November 2011
|title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M
|journal = The Astrophysical Journal
|volume = 741
|issue = 2
|page = 25
|bibcode = 2011ApJ...741...90M
|doi = 10.1088/0004-637X/741/2/90
|access-date= November 2015}}</ref>

<ref name="Masiero-2012">{{cite journal
|authors = Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S.
|date = November 2012
|title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M
|journal = The Astrophysical Journal Letters
|volume = 759
|issue = 1
|page = 5
|bibcode = 2012ApJ...759L...8M
|doi = 10.1088/2041-8205/759/1/L8
|access-date= November 2015}}</ref>

}} <!-- end of reflist -->

== External links ==
* [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info])
* [https://books.google.se/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
* [http://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
* {{JPL small body|title=1739 Meyermann (1939 PF)|id=2001739}}


{{MinorPlanets Navigator|1738 Oosterhoff|1740 Paavo Nurmi}}
{{MinorPlanets Navigator|1738 Oosterhoff|1740 Paavo Nurmi}}
{{Small Solar System bodies}}
{{MinorPlanets_Footer}}


{{DEFAULTSORT:Meyermann}}
{{DEFAULTSORT:Meyermann}}
[[Category:Main-belt asteroids]]
[[Category:Main-belt asteroids|001739]]
[[Category:Numbered asteroids]]
[[Category:Asteroids named for people]]
[[Category:Asteroids named for people]]
[[Category:Discoveries by Karl Wilhelm Reinmuth]]
[[Category:Discoveries by Karl Wilhelm Reinmuth]]
[[Category:Astronomical objects discovered in 1939]]
[[Category:Astronomical objects discovered in 1939|19390815]]
[[Category:Flora asteroids|001739]]



{{beltasteroid-stub}}
{{Beltasteroid-stub}}

Revision as of 00:19, 16 November 2015

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 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc86.00 yr (31,412 days)
Aphelion2.5423 AU
Perihelion1.9787 AU
2.2605 AU
Eccentricity0.1246
3.40 yr (1,241 days)
154.94°
Inclination3.4070°
203.38°
81.997°
Physical characteristics
Dimensions8.688±0.063 km[4]
6.62±0.79 km[5]
8.19 km (caculated)[3]
2.8219±0.0002h[a]
2.8212±0.0002 h[a]
0.1961±0.0376[4]
0.336±0.116[5]
0.24 (assumed)[3]
S [3]
12.6

1739 Meyermann, provisional designation 1939 PF, is a stony asteroid from the inner regions of the asteroid belt, about 8 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 15 August 1939.[6]

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 3.40 years (1,241 days). Its orbit shows an eccentricity of 0.12 and is inclined by 3 degrees to the plane of the ecliptic. It has a rotation period of 2.822 hours and an albedo of 0.20 and 0.37, according to preliminary results from the surveys carried out by the WISE and NEOWISE missions, respectively.[4][5]

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 effects.[2]

References

  1. ^ a b Pravec (2007) web: rotation period 2.8219±0.0002 hours and Pravec (2014) web 2.8212±0.0002, with a brightness amplitude of 0.22 and 0.17, respectively. Summary figures at Asteroid Lightcurve Database for (1739) Meyermann
  1. ^ a b "JPL Small-Body Database Browser: 1739 Meyermann (1939 PF)" (2015-10-11 last obs.). Jet Propulsion Laboratory. Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1739) Meyermann. Springer Berlin Heidelberg. p. 138. ISBN 978-3-540-29925-7. Retrieved November 2015. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ a b c d "LCDB Data for (1739) Meyermann". Asteroid Lightcurve Database (LCDB). Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)
  4. ^ a b c "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. November 2011. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015. {{cite journal}}: Check date values in: |access-date= (help); Unknown parameter |authors= ignored (help)
  5. ^ a b c "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. November 2012. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015. {{cite journal}}: Check date values in: |access-date= (help); Unknown parameter |authors= ignored (help)
  6. ^ "1739 Meyermann (1939 PF)". Minor Planet Center. Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)


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