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{{Infobox planet
#REDIRECT [[List of minor planets: 19001–20000#901]]
| minorplanet = yes
{{R to list entry}}
| name = 19982 Barbaradoore
| background = #FFFFC0
| image =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| discovered = 22 January 1990
| discoverer = [[Eleanor Helin|E. F. Helin]]
| discovery_site = [[Palomar Observatory|Palomar Obs.]]
| mp_name = 19982 Barbaradoore
| alt_names = 1990 BJ{{·}}{{mp|1983 AD|2}}
| named_after = Barbara Doore<br />{{small|(discoverer's family)}}<ref name="springer" />
| mp_category = [[main-belt]]{{·}}[[Mars crosser]]&thinsp;<ref name="lcdb" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| epoch = 27 June 2015 ([[Julian day|JD]] 2457200.5)
| uncertainty = 0
| observation_arc = {{nowrap|32.20 yr (11,761 days)}}
| aphelion = 3.0034 [[Astronomical unit|AU]]
| perihelion = 1.6685 AU
| semimajor = 2.3360 AU
| eccentricity = 0.2857
| period = 3.57 [[Julian year (astronomy)|yr]] (1,304 days)
| mean_anomaly = 86.036[[degree (angle)|°]]
| inclination = 22.327°
| asc_node = 290.08°
| arg_peri = 106.87°
| moid = 0.8080 AU
| dimensions = {{val|4.668|0.120}} km<ref name="WISE" /><br />{{val|5.02|0.14}} km<ref name="Masiero-2012" /><br />5.66 km {{small|(calculated)}}<ref name="lcdb" />
| rotation = {{val|3.3162|0.0003}} [[hour|h]]{{efn|name=lcdb-Pravec}}
| albedo = {{val|0.3540|0.0784}}<ref name="WISE" /><br />{{val|0.306|0.040}}<ref name="Masiero-2012" /><br />0.20 {{small|(assumed)}}<ref name="lcdb" />
| spectral_type = [[S-type asteroid|S]]&thinsp;<ref name="lcdb" />
| abs_magnitude = 13.6<ref name="jpldata" /><ref name="lcdb" /><br />13.4<ref name="WISE" /><ref name="Masiero-2012" />
}}


'''19982 Barbaradoore''', provisional designation 1990 BJ, is an eccentric, stony [[asteroid]] from the inner regions of the [[asteroid belt]], about 5 kilometers in diameter. It was discovered by American female astronomer [[Eleanor Helin]] at the U.S. [[Palomar Observatory]], California, on 22 January 1990.<ref name="MPC-Barbaradoore" />
<!--

Before reverting this redirect into an article, please
The [[S-type asteroid|S-type]] asteroid orbits the Sun at a distance of 1.7–3.0&nbsp;[[Astronomical unit|AU]] once every 3 years and 7 months (1,304 days). Its orbit shows a notable [[orbital eccentricity|eccentricity]] of 0.29 and an [[orbital inclination|inclination]] of 22 degrees from the plane of the [[ecliptic]].<ref name="jpldata" /> The ''Collaborative Asteroid Lightcurve Link'' (CALL) also classifies it as a [[Mars-crossing asteroid]], because its perihelion lies between 1.3 and 1.668&nbsp;AU (with no rounding).<ref name="lcdb-readme" /> On the other hand, the [[JPL Small-Body Database]] exclusively classifies the body as a main-belt and not as a Mars-crosser, since its perihelion of 1.6685&nbsp;AU is larger than the [[aphelion]] of [[Mars]] (1.666&nbsp;AU).<ref name="jpldata" /> Hence the body does not even classify for an [[Outer-grazer|outer Mars grazer]].
check whether the content will satisfy the guidelines for

astronomical object notability on WP:NASTRO. In particular,
A photometric [[light-curve]] analysis by Czech astronomer [[Petr Pravec]] at [[Ondřejov Observatory]] in 2010, rendered a well-defined [[rotation period]] of {{val|3.3162|0.0003}} hours with a brightness amplitude of 0.28 in [[Magnitude (astronomy)|magnitude]].{{efn|name=lcdb-Pravec}} According to the surveys carried out by NASA's [[Wide-field Infrared Survey Explorer]] and its subsequent [[NEOWISE]] mission, the asteroid has a high [[astronomical albedo|albedo]] of 0.35 and 0.31 with a corresponding diameter of 5.0 and 5.7 kilometers, respectively,<ref name="WISE" /><ref name="Masiero-2012" />
the object must have significant coverage from independent,
while CALL assumes an albedo of 0.20, which is a more typical value for stony asteroids, and calculates a diameter of 4.7 kilometers.<ref name="lcdb" />
reliable sources. Just because an object is listed in a

database (like the JPL Small-Body Database) does not mean it
The minor planet was named after a cousin of the discoverer, Barbara Hendricks Doore (b.&thinsp;1933). She has been described as an active sports enthusiast with boundless energy, who excelled at sailing and golf. As a popular leader/volunteer, she has devoted much of her later years to the Boys and Girls Club of [[Cathedral City, California|Cathedral City]], California.<ref name="springer" />
is notable.

-->
== References ==
{{notelist|refs=

{{efn|name=lcdb-Pravec|1=Pravec (2010): rotation period {{val|3.3162|0.0003}} hours with a brightness amplitude of {{val|0.28}} mag. CALL assigns a quality-code of Q=3, which denotes a "secure result within the precision given and no ambiguity". Summary figures at {{URL|1=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=19982%7CBarbaradoore |2=Collaborative Asteroid Lightcurve Link (CALL) for (19982) Barbaradoore}}}}

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

{{reflist|refs=

<ref name="lcdb">{{cite web
|title=LCDB Data for (19982) Barbaradoore
|publisher=Asteroid Lightcurve Database (LCDB)
|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=19982%7CBarbaradoore
|accessdate=January 2016}}</ref>

<ref name="lcdb-readme">{{cite web
|title=LCDB readme – 2. Taxonomic Class, orbital class, and albedo
|publisher=Asteroid Lightcurve Database (LCDB)
|url=http://www.minorplanet.info/datazips/LCDB_readme.txt
|accessdate=January 2016}}</ref>


<ref name="jpldata">{{cite web
|type=2015-03-24 last obs.
|title=JPL Small-Body Database Browser: 19982 Barbaradoore (1990 BJ)
|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2019982
|publisher=Jet Propulsion Laboratory
|accessdate=January 2016}}</ref>

<ref name="springer">{{cite book
|url=http://link.springer.com/referenceworkentry/10.1007/978-3-540-29925-7_9595
|title=Dictionary of Minor Planet Names – (19982) Barbaradoore
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=860
|date=2007
|isbn=978-3-540-00238-3
|accessdate=January 2016}}</ref>

<ref name="MPC-Barbaradoore">{{cite web
|title=19982 Barbaradoore (1990 BJ)
|work=Minor Planet Center
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=19982
|accessdate=January 2016}}</ref>

<ref name="WISE">{{cite journal
|display-authors = 6
|first1 = A. |last1 = Mainzer
|first2 = T. |last2 = Grav
|first3 = J. |last3 = Masiero
|first4 = E. |last4 = Hand
|first5 = J. |last5 = Bauer
|first6 = D. |last6 = Tholen
|first7 = R. S. |last7 = McMillan
|first8 = T. |last8 = Spahr
|first9 = R. M. |last9 = Cutri
|first10 = E. |last10 = Wright
|first11 = J. |last11 = Watkins
|first12 = W. |last12 = Mo
|first13 = C. |last13 = Maleszewski
|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= January 2016}}</ref>

<ref name="Masiero-2012">{{cite journal
|display-authors = 6
|first1 = Joseph R. |last1 = Masiero
|first2 = A. K. |last2 = Mainzer
|first3 = T. |last3 = Grav
|first4 = J. M. |last4 = Bauer
|first5 = R. M. |last5 = Cutri
|first6 = C. |last6 = Nugent
|first7 = M. S. |last7 = Cabrera
|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= January 2016}}</ref>

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

== External links ==
* [http://www.asu.cas.cz/~ppravec/neo.htm Pravec, P.; Wolf, M.; Sarounova, L. (2010)]
* [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/NumberedMPs015001.html Discovery Circumstances: Numbered Minor Planets (15001)-(20000)] – Minor Planet Center
* {{JPL small body|title=19982 Barbaradoore (1990 BJ)|id=2019982}}

{{Minor planets navigator|19981 Bialystock|(19983) 1990 DW}}
{{Small Solar System bodies}}


{{DEFAULTSORT:Barbaradoore}}
{{DEFAULTSORT:Barbaradoore}}
[[Category:Main-belt asteroids]]
[[Category:Main-belt asteroids|019982]]
<!--[[Category:Mars-crossing asteroids|019982]]-->
[[Category:Numbered asteroids|019982]]
[[Category:Numbered asteroids|019982]]
[[Category:Discoveries by Eleanor F. Helin]]
[[Category:Discoveries by Eleanor F. Helin|Barbaradoore]]
[[Category:Astronomical objects discovered in 1990]]
[[Category:Asteroids named for people|Barbaradoore]]
[[Category:Astronomical objects discovered in 1990|19900122]]


{{Beltasteroid-stub}}

Revision as of 03:09, 20 January 2016

19982 Barbaradoore
Discovery [1]
Discovered byE. F. Helin
Discovery sitePalomar Obs.
Discovery date22 January 1990
Designations
19982 Barbaradoore
Named after
Barbara Doore
(discoverer's family)[2]
1990 BJ · 1983 AD2
main-belt · Mars crosser [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc32.20 yr (11,761 days)
Aphelion3.0034 AU
Perihelion1.6685 AU
2.3360 AU
Eccentricity0.2857
3.57 yr (1,304 days)
86.036°
Inclination22.327°
290.08°
106.87°
Earth MOID0.8080 AU
Physical characteristics
Dimensions4.668±0.120 km[4]
5.02±0.14 km[5]
5.66 km (calculated)[3]
3.3162±0.0003 h[a]
0.3540±0.0784[4]
0.306±0.040[5]
0.20 (assumed)[3]
S [3]
13.6[1][3]
13.4[4][5]

19982 Barbaradoore, provisional designation 1990 BJ, is an eccentric, stony asteroid from the inner regions of the asteroid belt, about 5 kilometers in diameter. It was discovered by American female astronomer Eleanor Helin at the U.S. Palomar Observatory, California, on 22 January 1990.[6]

The S-type asteroid orbits the Sun at a distance of 1.7–3.0 AU once every 3 years and 7 months (1,304 days). Its orbit shows a notable eccentricity of 0.29 and an inclination of 22 degrees from the plane of the ecliptic.[1] The Collaborative Asteroid Lightcurve Link (CALL) also classifies it as a Mars-crossing asteroid, because its perihelion lies between 1.3 and 1.668 AU (with no rounding).[7] On the other hand, the JPL Small-Body Database exclusively classifies the body as a main-belt and not as a Mars-crosser, since its perihelion of 1.6685 AU is larger than the aphelion of Mars (1.666 AU).[1] Hence the body does not even classify for an outer Mars grazer.

A photometric light-curve analysis by Czech astronomer Petr Pravec at Ondřejov Observatory in 2010, rendered a well-defined rotation period of 3.3162±0.0003 hours with a brightness amplitude of 0.28 in magnitude.[a] According to the surveys carried out by NASA's Wide-field Infrared Survey Explorer and its subsequent NEOWISE mission, the asteroid has a high albedo of 0.35 and 0.31 with a corresponding diameter of 5.0 and 5.7 kilometers, respectively,[4][5] while CALL assumes an albedo of 0.20, which is a more typical value for stony asteroids, and calculates a diameter of 4.7 kilometers.[3]

The minor planet was named after a cousin of the discoverer, Barbara Hendricks Doore (b. 1933). She has been described as an active sports enthusiast with boundless energy, who excelled at sailing and golf. As a popular leader/volunteer, she has devoted much of her later years to the Boys and Girls Club of Cathedral City, California.[2]

References

  1. ^ a b Pravec (2010): rotation period 3.3162±0.0003 hours with a brightness amplitude of 0.28 mag. CALL assigns a quality-code of Q=3, which denotes a "secure result within the precision given and no ambiguity". Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (19982) Barbaradoore
  1. ^ a b c d e "JPL Small-Body Database Browser: 19982 Barbaradoore (1990 BJ)" (2015-03-24 last obs.). Jet Propulsion Laboratory. Retrieved January 2016. {{cite web}}: Check date values in: |accessdate= (help)
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (19982) Barbaradoore. Springer Berlin Heidelberg. p. 860. ISBN 978-3-540-00238-3. Retrieved January 2016. {{cite book}}: Check date values in: |accessdate= (help)
  3. ^ a b c d e f "LCDB Data for (19982) Barbaradoore". Asteroid Lightcurve Database (LCDB). Retrieved January 2016. {{cite web}}: Check date values in: |accessdate= (help)
  4. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved January 2016. {{cite journal}}: Check date values in: |access-date= (help)
  5. ^ a b c d 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. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved January 2016. {{cite journal}}: Check date values in: |access-date= (help)
  6. ^ "19982 Barbaradoore (1990 BJ)". Minor Planet Center. Retrieved January 2016. {{cite web}}: Check date values in: |accessdate= (help)
  7. ^ "LCDB readme – 2. Taxonomic Class, orbital class, and albedo". Asteroid Lightcurve Database (LCDB). Retrieved January 2016. {{cite web}}: Check date values in: |accessdate= (help)

External links


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