1807 Slovakia: Difference between revisions

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{{Infobox planet
{{Infobox planet
| minorplanet = yes
| width = 25em
| name = 1807 Slovakia
| bgcolour = #FFFFC0
| background = #FFFFC0
| apsis =
| image =
| name = Slovakia
| symbol =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| image =
| discovered = 20 August 1971
| caption =
| discoverer = [[Milan Antal|M. Antal]]
| discovery = yes
| discovery_site = [[Skalnaté pleso Observatory|Skalnaté Pleso Obs.]]
| discovery_ref =
| mp_name = 1807 Slovakia
| discoverer = [[M. Antal]]
| alt_names = 1971 QA{{·}}1928 UE<br />1948 UC{{·}}1951 JA<br />1951 QK{{·}}1954 NA<br />1960 GB{{·}}{{mp|1971 TM|1}}
| discovery_site = [[Skalnaté Pleso Observatory]]
| named_after = [[Slovakia]]<ref name="springer" />
| discovered = August 20, 1971
| mp_category = [[main-belt]]{{·}}{{small|(inner)}}&thinsp;<ref name="lcdb" />
| designations = yes
| orbit_ref = &thinsp;<ref name="jpldata" />
| mp_name = 1807
| epoch = 27 June 2015 ([[Julian day|JD]] 2457200.5)
| alt_names = 1971 QA
| uncertainty = 0
| named_after = [[Slovakia]]
| observation_arc = {{nowrap|86.98 yr (31,770 days)}}
| mp_category =
| aphelion = 2.6217 [[Astronomical unit|AU]]
| orbit_ref =
| perihelion = 1.8302 AU
| epoch = May 14, 2008
| aphelion = 2.6216267
| semimajor = 2.2259 AU
| eccentricity = 0.1777
| perihelion = 1.8306443
| period = 3.32 [[Julian year (astronomy)|yr]] (1,213 days)
| semimajor =
| mean_anomaly = 46.933[[degree (angle)|°]]
| eccentricity = 0.1776582
| inclination = 3.4876°
| period = 1213.1816227
| asc_node = 236.45°
| avg_speed =
| arg_peri = 140.03°
| inclination = 3.48590
| moid = 0.8337 AU
| asc_node = 236.49758
| dimensions = {{val|9.146|0.059}} km<ref name="WISE" /><br />9.40 km {{small|(caculated)}}<ref name="lcdb" />
| mean_anomaly = 355.37713
| rotation = 308 [[hour|h]]<ref name="Galad-2009d" /><br />{{val|46}} h<ref name="geneva-obs" /><br />308.6 h<ref name="lcdb" />
| arg_peri = 140.08140
| albedo = {{val|0.3058|0.0411}}<ref name="WISE" /><br />0.20 {{small|(assumed)}}<ref name="lcdb" />
| satellites =
| spectral_type = [[SMASS classification|SMASS]] = [[S-type asteroid|S]][[S-type asteroid|S]]&thinsp;<ref name="lcdb" />
| physical_characteristics = yes
| abs_magnitude = 12.5
| dimensions =
| mass =
| density =
| surface_grav =
| escape_velocity =
| sidereal_day = 308 h<ref name=jpldata/><ref name=Galad2009/>
| 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 = S<ref name=jpldata/>
| abs_magnitude = 12.5<ref name=jpldata/>
}}
}}
'''1807 Slovakia''' (1971 QA) is a [[Asteroid belt|main-belt]] [[asteroid]] discovered on August 20, 1971 by [[M. Antal]] at [[Skalnaté Pleso Observatory]]. It has a long 308 hour [[rotation period]].<ref name=jpldata/><ref name=Galad2009/>


'''1807 Slovakia''', provisional designation 1971 QA, is a stony [[asteroid]] from the inner regions of the [[asteroid belt]]. It was discovered on 20 August 1971 by Slovak astronomer [[Milan Antal]] at [[Skalnaté pleso Observatory]] near Tatranská Lomnica in the [[High Tatras]] mountains.<ref name="MPC-Slovakia" />
==References==

The [[S-type asteroid|S-type]] asteroid orbits the Sun at a distance of 1.8–2.6&nbsp;[[Astronomical unit|AU]] once every 3 years and 4 months (1,213 days). It has an [[geometric albedo|albedo]] of 0.20–0.31.<ref name="WISE" /><ref name="lcdb" />

The 9-kilometer sized asteroid has an exceptionally long [[rotation period]] of 308 hours.<ref name="Galad-2009d" /> Previous observations made by the Geneva observatory in 2003 gave a provisional period of 1.9 days or about 46 hours.<ref name="geneva-obs" />

It was named in honor of the now independent state of [[Slovakia]] (Slovak Republic), the country where the discovering observatory is located. At the time Slovakia was still part of the socialistic republic of [[Czechoslovakia]] that was formed after World War I and lasted until the end of the Cold War ''(also see [[2315 Czechoslovakia]])''.<ref name="springer" />

== References ==
{{reflist
{{reflist
| refs =
|refs=
<ref name=jpldata>{{cite web
|title=JPL Small-Body Database Browser: 1807 Slovakia
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1807
|publisher=Jet Propulsion Laboratory}}</ref>


<ref name=Galad2009>{{cite journal
<ref name="geneva-obs">{{cite web
|title=Asteroids and comets rotation curves – (1807) Slovakia
|last1=Galad |first1=Adrian
|last2= Kornos |first2=Leonard
|last=Behrend |first=Raoul
|publisher=Geneva Observatory
|last3= Husarik |first3=Marek
|url=http://obswww.unige.ch/~behrend/page4cou.html#001807
|title=The Very Long Sidereal Period of 1807 Slovakia
|accessdate=November 2015}}</ref>
|journal=Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers
|volume=36 |issue=4 |pages=149–151 |year=2009
|bibcode=2009MPBu...36..149G}}</ref>


<ref name="lcdb">{{cite web
}}
|title=LCDB Data for (1807) Slovakia
|publisher=Asteroid Lightcurve Database (LCDB)
|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1807%7CSlovakia
|accessdate=November 2015}}</ref>

<ref name="jpldata">{{cite web
|type=2015-10-11 last obs.
|title=JPL Small-Body Database Browser: 1807 Slovakia (1971 QA)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001807
|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_1808
|title=Dictionary of Minor Planet Names – (1807) Slovakia
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=145
|date=2003
|isbn=978-3-540-29925-7
|accessdate=November 2015}}</ref>

<ref name="MPC-Slovakia">{{cite web
|title=1807 Slovakia (1971 QA)
|work=Minor Planet Center
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=1807
|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
|publisher =
|volume = 741
|issue = 2
|pages = 25
|bibcode = 2011ApJ...741...90M
|doi = 10.1088/0004-637X/741/2/90
|access-date= November 2015}}</ref>

<ref name="Galad-2009d">{{cite journal
|authors = Galad, Adrian; Kornos, Leonard; Husarik, Marek
|date = October 2009
|title = The Very Long Sidereal Period of 1807 Slovakia
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MPBu...36..149G
|journal = Bulletin of the Minor Planets
|publisher = Section of the Association of Lunar and Planetary Observers
|volume = 36
|issue = 4
|page = 149&ndash;151
|issn = 1052-8091
|bibcode = 2009MPBu...36..149G
|doi =
|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 Geneve, Raoul Behrend
* {{JPL small body|title=1807 Slovakia (1971 QA)|id=2001807}}


{{Minor planets navigator|1806 Derice|1808 Bellerophon}}
{{Minor planets navigator|1806 Derice|1808 Bellerophon}}
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{{DEFAULTSORT:Slovakia}}
{{DEFAULTSORT:Slovakia}}
[[Category:Main-belt asteroids]]
[[Category:Main-belt asteroids|001807]]
[[Category:Numbered asteroids]]
[[Category:Asteroids named for places]]
[[Category:Asteroids named for places]]
[[Category:Astronomical objects discovered in 1971]]
[[Category:Astronomical objects discovered in 1971|19710820]]
[[Category:Discoveries by Milan Antal]]
[[Category:Discoveries by Milan Antal]]



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

Revision as of 14:12, 4 November 2015

1807 Slovakia
Discovery [1]
Discovered byM. Antal
Discovery siteSkalnaté Pleso Obs.
Discovery date20 August 1971
Designations
1807 Slovakia
Named after
Slovakia[2]
1971 QA · 1928 UE
1948 UC · 1951 JA
1951 QK · 1954 NA
1960 GB · 1971 TM1
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc86.98 yr (31,770 days)
Aphelion2.6217 AU
Perihelion1.8302 AU
2.2259 AU
Eccentricity0.1777
3.32 yr (1,213 days)
46.933°
Inclination3.4876°
236.45°
140.03°
Earth MOID0.8337 AU
Physical characteristics
Dimensions9.146±0.059 km[4]
9.40 km (caculated)[3]
308 h[5]
46 h[6]
308.6 h[3]
0.3058±0.0411[4]
0.20 (assumed)[3]
SMASS = SS [3]
12.5

1807 Slovakia, provisional designation 1971 QA, is a stony asteroid from the inner regions of the asteroid belt. It was discovered on 20 August 1971 by Slovak astronomer Milan Antal at Skalnaté pleso Observatory near Tatranská Lomnica in the High Tatras mountains.[7]

The S-type asteroid orbits the Sun at a distance of 1.8–2.6 AU once every 3 years and 4 months (1,213 days). It has an albedo of 0.20–0.31.[4][3]

The 9-kilometer sized asteroid has an exceptionally long rotation period of 308 hours.[5] Previous observations made by the Geneva observatory in 2003 gave a provisional period of 1.9 days or about 46 hours.[6]

It was named in honor of the now independent state of Slovakia (Slovak Republic), the country where the discovering observatory is located. At the time Slovakia was still part of the socialistic republic of Czechoslovakia that was formed after World War I and lasted until the end of the Cold War (also see 2315 Czechoslovakia).[2]

References

  1. ^ a b "JPL Small-Body Database Browser: 1807 Slovakia (1971 QA)" (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 – (1807) Slovakia. Springer Berlin Heidelberg. p. 145. ISBN 978-3-540-29925-7. Retrieved November 2015. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ a b c d e f "LCDB Data for (1807) Slovakia". 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); Cite uses deprecated parameter |authors= (help)
  5. ^ a b "The Very Long Sidereal Period of 1807 Slovakia". Bulletin of the Minor Planets. 36 (4). Section of the Association of Lunar and Planetary Observers: 149–151. October 2009. Bibcode:2009MPBu...36..149G. ISSN 1052-8091. Retrieved November 2015. {{cite journal}}: Check date values in: |access-date= (help); Cite uses deprecated parameter |authors= (help)
  6. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1807) Slovakia". Geneva Observatory. Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)
  7. ^ "1807 Slovakia (1971 QA)". Minor Planet Center. Retrieved November 2015. {{cite web}}: Check date values in: |accessdate= (help)

External links


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