“1573 Väisälä”的意思、由来-开放百科全书

The stony S-type asteroid is a member of the Phocaea family ({{small|701}}), a group of asteroids with similar orbital characteristics.^[4] It orbits the Sun at a distance of 1.8–2.9 AU once every 3 years and 8 months (1,334 days). Its orbit has an eccentricity of 0.23 and an inclination of 25° with respect to the ecliptic. Väisälä{{'}}s observation arc begins on the night following its official discovery observation at Uccle, as no precoveries were taken and no prior identifications were made.^[20]

Physical characteristics

Slow rotator

In September 2011, a rotational lightcurve of Väisälä was obtained from photometric observations made by Czech astronomer Petr Pravec at Ondřejov Observatory.{{efn|name=IMG-Light-Curve-Analysis}} Its analysis gave a rotation period of 252 hours with a brightness variation of 0.76 magnitude ({{small|U=2}}).{{efn|name=LCDB-Pravec-2012}} This makes Väisälä one of the Top 200 slow rotators known to exist. The body is also suspected to be in a non-principal axis rotation (NPAR), colloquially called as "tumbling". As of 2017, no follow-up observations have been made of these provisional results.^[3]

Diameter and albedo

According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Väisälä measures between 8.43 and 9.77 kilometers in diameter, and its surface has an albedo between 0.222 and 0.284.^[6]^[7]^[8]^[9] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.2226 and a diameter of 9.77 kilometers using on an absolute magnitude of 12.30.^[3]

Naming

This minor planet was named after Finnish astronomer, Yrjö Väisälä (1891–1971), a prolific discoverer of minor planets during the late 1930s and early 1940s.^[2] In addition, a second minor planet, 2804 Yrjö, was named in his honor by pioneering Finnish female astronomer Liisi Oterma, and the lunar crater Väisälä also bears his name. Naming citation was published before November 1977 ({{small|M.P.C. 2116}}).^[32]

Notets

References

1. ^¹²³{{cite book |title = Dictionary of Minor Planet Names – (1573) Väisälä |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 125 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1574 |chapter = (1573) Väisälä }}
2. ^¹²{{cite web |title = 1573 Vaisala (1949 UA) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1573 |accessdate = 29 December 2016}}
3. ^¹{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 29 December 2016}}
4. ^¹²³{{cite journal |first1 = E. F. |last1 = Tedesco |first2 = P. V. |last2 = Noah |first3 = M. |last3 = Noah |first4 = S. D. |last4 = Price |date = October 2004 |title = IRAS Minor Planet Survey V6.0 |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004PDSS...12.....T |journal = NASA Planetary Data System |volume = 12 |pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 |bibcode = 2004PDSS...12.....T |access-date= 8 December 2016}}
5. ^¹²{{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 = J. |last6 = Dailey |first7 = P. R. M. |last7 = Eisenhardt |first8 = R. S. |last8 = McMillan |first9 = T. B. |last9 = Spahr |first10 = M. F. |last10 = Skrutskie |first11 = D. |last11 = Tholen |first12 = R. G. |last12 = Walker |first13 = E. L. |last13 = Wright |first14 = E. |last14 = DeBaun |first15 = D. |last15 = Elsbury |first16 = T., IV |last16 = Gautier |first17 = S. |last17 = Gomillion |first18 = A. |last18 = Wilkins |date = November 2011 |title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 20 |bibcode = 2011ApJ...741...68M |doi = 10.1088/0004-637X/741/2/68 |arxiv = 1109.4096 |access-date= 29 December 2016}}
6. ^¹{{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= 29 December 2016}}
7. ^¹²{{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 1 November 2017}}
8. ^¹²³⁴⁵{{cite web |title = LCDB Data for (1573) Väisälä |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1573%7CVäisälä |accessdate = 29 December 2016}}
9. ^¹²³⁴{{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 |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 25 |bibcode = 2011ApJ...741...90M |doi = 10.1088/0004-637X/741/2/90 |arxiv = 1109.6407 }}
10. ^¹²³⁴{{cite journal |display-authors = 6 |first1 = C. R. |last1 = Nugent |first2 = A. |last2 = Mainzer |first3 = J. |last3 = Bauer |first4 = R. M. |last4 = Cutri |first5 = E. A. |last5 = Kramer |first6 = T. |last6 = Grav |first7 = J. |last7 = Masiero |first8 = S. |last8 = Sonnett |first9 = E. L. |last9 = Wright |date = September 2016 |title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016AJ....152...63N |journal = The Astronomical Journal |volume = 152 |issue = 3 |page = 12 |bibcode = 2016AJ....152...63N |doi = 10.3847/0004-6256/152/3/63 |arxiv = 1606.08923 |access-date= 29 December 2016}}
11. ^¹{{cite journal |display-authors = 6 |first1 = Peter |last1 = Veres |first2 = Robert |last2 = Jedicke |first3 = Alan |last3 = Fitzsimmons |first4 = Larry |last4 = Denneau |first5 = Mikael |last5 = Granvik |first6 = Bryce |last6 = Bolin |first7 = Serge |last7 = Chastel |first8 = Richard J. |last8 = Wainscoat |first9 = William S. |last9 = Burgett |first10 = Kenneth C. |last10 = Chambers |first11 = Heather |last11 = Flewelling |first12 = Nick |last12 = Kaiser |first13 = Eugen A. |last13 = Magnier |first14 = Jeff S. |last14 = Morgan |first15 = Paul A. |last15 = Price |first16 = John L. |last16 = Tonry |first17 = Christopher |last17 = Waters |date = November 2015 |title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V |journal = Icarus |volume = 261 |pages = 34–47 |bibcode = 2015Icar..261...34V |doi = 10.1016/j.icarus.2015.08.007 |arxiv = 1506.00762 |access-date= 29 December 2016}}

词条	1573 Väisälä
释义	Orbit and classification Physical characteristics Slow rotator Diameter and albedo Naming Notets References External links {{Infobox planet \| minorplanet = yes \| name = 1573 Väisälä \| background = #D6D6D6 \| image = \| image_size = \| caption = \| discovery_ref = \| discovered = 27 October 1949 \| discoverer = S. Arend \| discovery_site = Uccle Obs. \| mpc_name = (1573) Väisälä \| alt_names = 1949 UA \| named_after = Yrjö Väisälä {{small\|(astronomer)}}^[2] \| mp_category = main-belt{{·}}Phocaea ^[3]^[4] \| orbit_ref = \| epoch = 4 September 2017 (JD 2458000.5) \| uncertainty = 0 \| observation_arc = 67.51 yr (24,659 days) \| aphelion = 2.9192 AU \| perihelion = 1.8243 AU \| semimajor = 2.3717 AU \| eccentricity = 0.2308 \| period = 3.65 yr (1,334 days) \| mean_anomaly = 225.00° \| mean_motion = {{Deg2DMS\|0.2698\|sup=ms}} / day \| inclination = 24.553° \| asc_node = 202.38° \| arg_peri = 173.91° \| dimensions = {{val\|8.43\|1.90}} km^[6] {{val\|9.083\|0.055}} km^[7] {{val\|9.146\|0.066}} km^[8] 9.77 km {{small\|(IRAS:2)}}^[9] \| rotation = {{val\|252}} h{{efn\|name=LCDB-Pravec-2012}} \| albedo = 0.2226 {{small\|(IRAS:2)}}^[9] {{val\|0.25\|0.12}}^[6] {{val\|0.2818\|0.0319}}^[7] {{val\|0.284\|0.045}}^[13] \| spectral_type = S ^[3] \| abs_magnitude = 12.2^[7]{{·}}12.30^[3]{{·}}12.47^[6]{{·}}{{val\|12.84\|0.50}}^[19] }}1573 Väisälä, provisional designation {{mp\|1949 UA}}, is a stony Phocaea asteroid, slow rotator and suspected tumbler from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 27 October 1949, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, Belgium.^[20] It was named for Finnish astronomer Yrjö Väisälä.^[2] Orbit and classification The stony S-type asteroid is a member of the Phocaea family ({{small\|701}}), a group of asteroids with similar orbital characteristics.^[4] It orbits the Sun at a distance of 1.8–2.9 AU once every 3 years and 8 months (1,334 days). Its orbit has an eccentricity of 0.23 and an inclination of 25° with respect to the ecliptic. Väisälä{{'}}s observation arc begins on the night following its official discovery observation at Uccle, as no precoveries were taken and no prior identifications were made.^[20] Physical characteristics Slow rotator In September 2011, a rotational lightcurve of Väisälä was obtained from photometric observations made by Czech astronomer Petr Pravec at Ondřejov Observatory.{{efn\|name=IMG-Light-Curve-Analysis}} Its analysis gave a rotation period of 252 hours with a brightness variation of 0.76 magnitude ({{small\|U=2}}).{{efn\|name=LCDB-Pravec-2012}} This makes Väisälä one of the Top 200 slow rotators known to exist. The body is also suspected to be in a non-principal axis rotation (NPAR), colloquially called as "tumbling". As of 2017, no follow-up observations have been made of these provisional results.^[3] Diameter and albedo According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Väisälä measures between 8.43 and 9.77 kilometers in diameter, and its surface has an albedo between 0.222 and 0.284.^[6]^[7]^[8]^[9] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.2226 and a diameter of 9.77 kilometers using on an absolute magnitude of 12.30.^[3] Naming This minor planet was named after Finnish astronomer, Yrjö Väisälä (1891–1971), a prolific discoverer of minor planets during the late 1930s and early 1940s.^[2] In addition, a second minor planet, 2804 Yrjö, was named in his honor by pioneering Finnish female astronomer Liisi Oterma, and the lunar crater Väisälä also bears his name. Naming citation was published before November 1977 ({{small\|M.P.C. 2116}}).^[32] Notets {{notelist\|refs={{efn\|name=LCDB-Pravec-2012\|1=Pravec (2012) web: rotation period {{val\|252}} hours with a brightness amplitude of {{val\|0.76}} mag. Pravec, P.; Wolf, M.; Sarounova, L. (2012) Summary figures at DEFPage_Local.php?AstInfo=1573%7CVaisala Collaborative Asteroid Lightcurve Link (CALL) for (1573) Vaisala }}{{efn\|name=IMG-Light-Curve-Analysis\|1=Light-Curve-Analysis of (1573) Väisälä Screenshot from data }} }} References 1. ^¹²³{{cite book \|title = Dictionary of Minor Planet Names – (1573) Väisälä \|last = Schmadel \| first = Lutz D. \|publisher = Springer Berlin Heidelberg \|page = 125 \|date = 2007 \|isbn = 978-3-540-00238-3 \|doi = 10.1007/978-3-540-29925-7_1574 \|chapter = (1573) Väisälä }} 2. ^¹²{{cite web \|title = 1573 Vaisala (1949 UA) \|work = Minor Planet Center \|url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1573 \|accessdate = 29 December 2016}} 3. ^¹{{cite web \|title = MPC/MPO/MPS Archive \|work = Minor Planet Center \|url = http://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html \|accessdate = 29 December 2016}} 4. ^¹²³{{cite journal \|first1 = E. F. \|last1 = Tedesco \|first2 = P. V. \|last2 = Noah \|first3 = M. \|last3 = Noah \|first4 = S. D. \|last4 = Price \|date = October 2004 \|title = IRAS Minor Planet Survey V6.0 \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2004PDSS...12.....T \|journal = NASA Planetary Data System \|volume = 12 \|pages = IRAS-A-FPA-3-RDR-IMPS-V6.0 \|bibcode = 2004PDSS...12.....T \|access-date= 8 December 2016}} 5. ^¹²{{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 = J. \|last6 = Dailey \|first7 = P. R. M. \|last7 = Eisenhardt \|first8 = R. S. \|last8 = McMillan \|first9 = T. B. \|last9 = Spahr \|first10 = M. F. \|last10 = Skrutskie \|first11 = D. \|last11 = Tholen \|first12 = R. G. \|last12 = Walker \|first13 = E. L. \|last13 = Wright \|first14 = E. \|last14 = DeBaun \|first15 = D. \|last15 = Elsbury \|first16 = T., IV \|last16 = Gautier \|first17 = S. \|last17 = Gomillion \|first18 = A. \|last18 = Wilkins \|date = November 2011 \|title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M \|journal = The Astrophysical Journal \|volume = 741 \|issue = 2 \|page = 20 \|bibcode = 2011ApJ...741...68M \|doi = 10.1088/0004-637X/741/2/68 \|arxiv = 1109.4096 \|access-date= 29 December 2016}} 6. ^¹{{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= 29 December 2016}} 7. ^¹²{{cite web \|title = Small Bodies Data Ferret \|work = Nesvorny HCM Asteroid Families V3.0 \|url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action \|accessdate = 1 November 2017}} 8. ^¹²³⁴⁵{{cite web \|title = LCDB Data for (1573) Väisälä \|publisher = Asteroid Lightcurve Database (LCDB) \|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1573%7CVäisälä \|accessdate = 29 December 2016}} 9. ^¹²³⁴{{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 \|journal = The Astrophysical Journal \|volume = 741 \|issue = 2 \|page = 25 \|bibcode = 2011ApJ...741...90M \|doi = 10.1088/0004-637X/741/2/90 \|arxiv = 1109.6407 }} 10. ^¹²³⁴{{cite journal \|display-authors = 6 \|first1 = C. R. \|last1 = Nugent \|first2 = A. \|last2 = Mainzer \|first3 = J. \|last3 = Bauer \|first4 = R. M. \|last4 = Cutri \|first5 = E. A. \|last5 = Kramer \|first6 = T. \|last6 = Grav \|first7 = J. \|last7 = Masiero \|first8 = S. \|last8 = Sonnett \|first9 = E. L. \|last9 = Wright \|date = September 2016 \|title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016AJ....152...63N \|journal = The Astronomical Journal \|volume = 152 \|issue = 3 \|page = 12 \|bibcode = 2016AJ....152...63N \|doi = 10.3847/0004-6256/152/3/63 \|arxiv = 1606.08923 \|access-date= 29 December 2016}} 11. ^¹{{cite journal \|display-authors = 6 \|first1 = Peter \|last1 = Veres \|first2 = Robert \|last2 = Jedicke \|first3 = Alan \|last3 = Fitzsimmons \|first4 = Larry \|last4 = Denneau \|first5 = Mikael \|last5 = Granvik \|first6 = Bryce \|last6 = Bolin \|first7 = Serge \|last7 = Chastel \|first8 = Richard J. \|last8 = Wainscoat \|first9 = William S. \|last9 = Burgett \|first10 = Kenneth C. \|last10 = Chambers \|first11 = Heather \|last11 = Flewelling \|first12 = Nick \|last12 = Kaiser \|first13 = Eugen A. \|last13 = Magnier \|first14 = Jeff S. \|last14 = Morgan \|first15 = Paul A. \|last15 = Price \|first16 = John L. \|last16 = Tonry \|first17 = Christopher \|last17 = Waters \|date = November 2015 \|title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V \|journal = Icarus \|volume = 261 \|pages = 34–47 \|bibcode = 2015Icar..261...34V \|doi = 10.1016/j.icarus.2015.08.007 \|arxiv = 1506.00762 \|access-date= 29 December 2016}} ^[1]^[2]^[3]^[4]^[5]^[6]^[7]^[8]^[9]^[10]^[11] }} External links Asteroid Lightcurve Database (LCDB), query form (info) [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center {{JPL small body}} {{Minor planets navigator\|1572 Posnania\|number=1573\|1574 Meyer}}{{Small Solar System bodies}}{{DEFAULTSORT:Vaisala}} 6 : Phocaea asteroids\|Discoveries by Sylvain Arend\|Minor planets named for people\|Named minor planets\|Slow rotating minor planets\|Astronomical objects discovered in 1949
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