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{{Short description|Main-belt asteroid discovered on 1938-09-16 by Yrjö Väisälä at Turku}}
⚫
{{Use dmy dates|date=October 2019}}
{{Infobox planet
{{Infobox planet
| minorplanet = yes
| minorplanet = yes
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| image_size =
| image_size =
| caption =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| discovery_ref = <ref name="jpldata" />
| discoverer = [[Yrjö Väisälä|Y. Väisälä]]
| discoverer = [[Yrjö Väisälä|Y. Väisälä]]
| discovery_site = [[Iso-Heikkilä Observatory|Turku Obs.]]
| discovery_site = [[Iso-Heikkilä Observatory|Turku Obs.]]
Line 14: Line 16:
| pronounced =
| pronounced =
| named_after = [[Lake Inari]] {{small|(Finnish lake)}}<ref name="springer" />
| named_after = [[Lake Inari]] {{small|(Finnish lake)}}<ref name="springer" />
| mp_category = [[main-belt]]{{·}}{{small|([[Kirkwood gap|outer]])}}<br />[[Eos family|Eos]]&thinsp;<ref name="lcdb" /><ref name="Ferret" />
| mp_category = [[main-belt]]{{·}}{{small|([[Kirkwood gap|outer]])}}<br />[[Eos family|Eos]]<ref name="lcdb" /><ref name="Ferret" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| orbit_ref = <ref name="jpldata" />
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| uncertainty = 0
| uncertainty = 0
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| rotation = {{val|25|}} [[Hour|h]]<ref name="geneva-obs" />
| rotation = {{val|25|}} [[Hour|h]]<ref name="geneva-obs" />
| albedo = {{val|0.060|0.003}}<ref name="AKARI" /><br />{{val|0.0623|0.0080}}<ref name="WISE" /><br />{{val|0.078|0.011}}<ref name="Masiero-2014" /><br />{{val|0.087|0.039}}<ref name="Masiero-2012" /><br />0.1049 {{small|(derived)}}<ref name="lcdb" />
| albedo = {{val|0.060|0.003}}<ref name="AKARI" /><br />{{val|0.0623|0.0080}}<ref name="WISE" /><br />{{val|0.078|0.011}}<ref name="Masiero-2014" /><br />{{val|0.087|0.039}}<ref name="Masiero-2012" /><br />0.1049 {{small|(derived)}}<ref name="lcdb" />
| spectral_type = [[Tholen classification|Tholen]] {{=}} [[S-type asteroid|S]]&thinsp;<ref name="jpldata" /><ref name="lcdb" /><br />[[Asteroid color indices|B–V]] {{=}} 0.840&thinsp;<ref name="jpldata" /><br />[[Asteroid color indices|U–B]] {{=}} 0.360&thinsp;<ref name="jpldata" />
| spectral_type = [[Tholen classification|Tholen]] {{=}} [[S-type asteroid|S]]<ref name="jpldata" /><ref name="lcdb" /><br />[[Asteroid color indices|B–V]] {{=}} 0.840<ref name="jpldata" /><br />[[Asteroid color indices|U–B]] {{=}} 0.360<ref name="jpldata" />
| abs_magnitude = 10.8<ref name="jpldata" /><ref name="lcdb" />{{·}}10.86<ref name="Masiero-2012" />{{·}}11.50<ref name="WISE" /><ref name="AKARI" />
| abs_magnitude = 10.8<ref name="jpldata" /><ref name="lcdb" />{{·}}10.86<ref name="Masiero-2012" />{{·}}11.50<ref name="WISE" /><ref name="AKARI" />
}}
}}
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<ref name="springer">{{cite book
<ref name="springer">{{cite book
|title = Dictionary of Minor Planet Names – (1532) Inari
|last = Schmadel | first = Lutz D.
|last = Schmadel | first = Lutz D.
|publisher = [[Springer Berlin Heidelberg]]
|title = Dictionary of Minor Planet Names |publisher = [[Springer Berlin Heidelberg]]
|page = 121
|page = 121
|date = 2007
|date = 2007
Line 91: Line 92:
<ref name="DoMP-Circular-dates">{{cite book
<ref name="DoMP-Circular-dates">{{cite book
|title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)
|title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)
|year = 2009
|url = https://archive.org/details/dictionaryminorp2008schm
|url-access = limited
|chapter = Appendix – Publication Dates of the MPCs
|chapter = Appendix – Publication Dates of the MPCs
|last = Schmadel |first=Lutz D.
|last = Schmadel |first=Lutz D.
|publisher = Springer Berlin Heidelberg
|publisher = Springer Berlin Heidelberg
|page = 221
|page = [https://archive.org/details/dictionaryminorp2008schm/page/n230 221]
|isbn = 978-3-642-01964-7
|isbn = 978-3-642-01964-7
|doi = 10.1007/978-3-642-01965-4}}</ref>
|doi = 10.1007/978-3-642-01965-4}}</ref>
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<ref name="Ferret">{{cite web
<ref name="Ferret">{{cite web
|title = Small Bodies Data Ferret
|title = Asteroid 1532 Inari – Nesvorny HCM Asteroid Families V3.0
|work = Nesvorny HCM Asteroid Families V3.0
|work = Small Bodies Data Ferret
|url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action
|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1532+Inari#Asteroid%201532%20InariEAR-A-VARGBDET-5-NESVORNYFAM-V3.0
|accessdate = 9 October 2017}}</ref>
|accessdate = 26 October 2019}}</ref>


<ref name="Nesvorny-2014">{{Cite book
<ref name="Nesvorny-2014">{{Cite book
Line 137: Line 141:
|first3 = V. |last3 = Carruba
|first3 = V. |last3 = Carruba
|date = December 2014
|date = December 2014
|title = Identification and Dynamical Properties of Asteroid Families
|chapter = Identification and Dynamical Properties of Asteroid Families
|journal = Asteroids IV
|title = Asteroids IV
|pages = 297–321
|pages = 297–321
|bibcode = 2015aste.book..297N
|bibcode = 2015aste.book..297N
|doi = 10.2458/azu_uapress_9780816532131-ch016
|doi = 10.2458/azu_uapress_9780816532131-ch016
|arxiv = 1502.01628
|arxiv = 1502.01628
|isbn = 9780816532131
|isbn = 9780816532131}}</ref>
}}</ref>


<ref name="lcdb">{{cite web
<ref name="lcdb">{{cite web
|title = LCDB Data for (1532) Inari
|title = LCDB Data for (1532) Inari
|publisher = Asteroid Lightcurve Database (LCDB)
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1532%7CInari
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1532%7CInari
|accessdate = 9 October 2017}}</ref>
|accessdate = 9 October 2017}}</ref>


Line 190: Line 193:
|date = October 2011
|date = October 2011
|title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
|title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
|url = http://pasj.oxfordjournals.org/content/63/5/1117.full.pdf+html
|journal = Publications of the Astronomical Society of Japan
|journal = Publications of the Astronomical Society of Japan
|volume = 63
|volume = 63
Line 197: Line 199:
|bibcode = 2011PASJ...63.1117U
|bibcode = 2011PASJ...63.1117U
|doi = 10.1093/pasj/63.5.1117
|doi = 10.1093/pasj/63.5.1117
|doi-access= free
|access-date= 17 October 2019}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1532 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])</ref>
}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1532 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])</ref>


<ref name="WISE">{{cite journal
<ref name="WISE">{{cite journal
Line 222: Line 225:
|bibcode = 2011ApJ...741...90M
|bibcode = 2011ApJ...741...90M
|doi = 10.1088/0004-637X/741/2/90
|doi = 10.1088/0004-637X/741/2/90
|arxiv = 1109.6407
|arxiv = 1109.6407}}</ref>
}}</ref>


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


== External links ==
== External links ==
* [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info])
* [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
* [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* [https://books.google.com/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://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
* [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
* {{AstDys|1532}}
* {{AstDys|1532}}
* {{JPL small body}}
* {{JPL small body}}


⚫
{{Use dmy dates|date=October 2019}}
{{Minor planets navigator |1531 Hartmut |number=1532 |1533 Saimaa}}
{{Minor planets navigator |1531 Hartmut |number=1532 |1533 Saimaa}}
{{Small Solar System bodies}}
{{Small Solar System bodies}}
{{Authority control}}


{{DEFAULTSORT:Inari}}
{{DEFAULTSORT:Inari}}
[[Category:Eos asteroids|001532]]
[[Category:Eos asteroids|001532]]
[[Category:Discoveries by Yrjö Väisälä]]
[[Category:Discoveries by Yrjö Väisälä]]
[[Category:Minor planets named for places]]
[[Category:Named minor planets]]
[[Category:Named minor planets]]
[[Category:S-type asteroids (Tholen)|001532]]
[[Category:S-type asteroids (Tholen)|001532]]

Latest revision as of 19:54, 25 December 2023

1532 Inari
Discovery[1]
Discovered byY. Väisälä
Discovery siteTurku Obs.
Discovery date16 September 1938
Designations
(1532) Inari
Named after
Lake Inari (Finnish lake)[2]
1938 SM · 1933 SZ
1935 BJ · 1936 FP1
main-belt · (outer)
Eos[3][4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc80.74 yr (29,492 days)
Aphelion3.1618 AU
Perihelion2.8486 AU
3.0052 AU
Eccentricity0.0521
5.21 yr (1,903 days)
325.80°
0° 11m 21.12s / day
Inclination8.7769°
330.63°
122.85°
Physical characteristics
Dimensions24.439±0.056 km[5]
26.759±0.099 km[6]
28.38 km (derived)[3]
29.53±0.56 km[7]
30.39±3.24 km[8]
25 h[9]
0.060±0.003[7]
0.0623±0.0080[6]
0.078±0.011[5]
0.087±0.039[8]
0.1049 (derived)[3]
Tholen = S[1][3]
B–V = 0.840[1]
U–B = 0.360[1]
10.8[1][3] · 10.86[8] · 11.50[6][7]

1532 Inari, provisional designation 1938 SM, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 28 kilometers in diameter. Discovered by Yrjö Väisälä at Turku Observatory in 1938, it was later named for Lake Inari in northern Finland.[2]

Discovery

[edit]

Inari was discovered on 16 September 1938, by Finnish astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory near Turku, Finland.[10] The asteroid was first identified as 1933 SZ at Simeiz Observatory in September 1933, and its observation arc begins at Nice Observatory in April 1936, more than two years prior to its official discovery observation at Turku.[10]

Orbit and classification

[edit]

Inari is a member the Eos family (606),[4] one of the asteroid belt's largest families with nearly 10,000 known asteroids.[11]: 23  It orbits the Sun in the outer main belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,903 days). Its orbit has an eccentricity of 0.05 and an inclination of 9° with respect to the ecliptic.[1]

Physical characteristics

[edit]

In the Tholen classification, Saimaa is a featureless stony S-type asteroid.[1][3] The overall spectral type for members of the Eos family is that of a K-type.[11]: 23 

Rotation period

[edit]

In January 2008, a fragmentary rotational lightcurve of Inari was obtained from photometric observations by French amateur astronomer René Roy. Lightcurve analysis gave a longer-than-average rotation period of 25 hours with a low brightness amplitude of 0.09 magnitude (U=1+).[9] As of 2017, no secure period has been obtained.[3]

Diameter and albedo

[edit]

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Inari measures between 24.439 and 30.39 kilometers in diameter and its surface has an albedo between 0.060 and 0.087.[5][6][7][8] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1049 and a diameter of 28.38 kilometers based on an absolute magnitude of 10.8.[3]

Naming

[edit]

This minor planet was named after Lake Inari (Inarijärvi), located north of the Arctic Circle in Lapland, Finland. Lake Inari is the country's third-largest lake and one of the largest lakes in Europe.[2]

The official naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3929).[12]

References

[edit]
  1. ^ a b c d e f g h "JPL Small-Body Database Browser: 1532 Inari (1938 SM)" (2017-01-09 last obs.). Jet Propulsion Laboratory. Retrieved 9 October 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(1532) Inari". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 121. doi:10.1007/978-3-540-29925-7_1533. ISBN 978-3-540-00238-3.
  3. ^ a b c d e f g h "LCDB Data for (1532) Inari". Asteroid Lightcurve Database (LCDB). Retrieved 9 October 2017.
  4. ^ a b "Asteroid 1532 Inari – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
  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 9 October 2017.
  6. ^ 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. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
  7. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
  8. ^ 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. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 9 October 2017.
  9. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1532) Inari". Geneva Observatory. Retrieved 9 October 2017.
  10. ^ a b "1532 Inari (1938 SM)". Minor Planet Center. Retrieved 9 October 2017.
  11. ^ a b Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
  12. ^ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.
[edit]
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