| 词条 | 1003 Lilofee |
| 释义 |
| minorplanet = yes | name = 1003 Lilofee | background = #D6D6D6 | image = | image_size = | caption = | discovery_ref = | discoverer = K. Reinmuth | discovery_site = Heidelberg Obs. | discovered = 13 September 1923 | mpc_name = (1003) Lilofee | alt_names = 1923 OK{{·}}1937 FB 1940 TA{{·}}1951 QO {{mp|1951 RA|2}}{{·}}{{mp|1957 WD|2}} 1962 QH{{·}}A915 HB | pronounced = | named_after = Lilofee [2] {{small|(mermaid in German folklore)}} | mp_category = main-belt{{·}}{{small|(outer)}} Themis [3][4] | orbit_ref = | epoch = 4 September 2017 (JD 2458000.5) | uncertainty = 0 | observation_arc = 93.81 yr (34,263 days) | aphelion = 3.6414 AU | perihelion = 2.6373 AU | semimajor = 3.1394 AU | eccentricity = 0.1599 | period = 5.56 yr (2,032 days) | mean_anomaly = 211.31° | mean_motion = {{Deg2DMS|0.1772|sup=ms}} / day | inclination = 1.8402° | asc_node = 139.45° | arg_peri = 317.42° | dimensions = {{val|27.29|1.83}} km[6] {{val|32.292|0.334}} km[7] {{val|33.1|3.3}} km[8] {{val|33.678|0.334}} km[9] 34.04 km {{small|(calculated)}}[3] {{val|36|4}} km[11] | rotation = {{val|8.230|0.004}} h[12] {{val|8.24991|0.00005}} h[13] {{val|8.250|0.001}} h[14]{{efn|name=lightcurve-plot-Stephens}} {{val|8.2506|0.0003}} h[12] {{val|8.255|0.002}} h[12] | albedo = {{val|0.07|0.01}}[11] {{val|0.08|0.02}}[3][8] {{val|0.130|0.020}}[9] {{val|0.1406|0.0213}}[7] {{val|0.198|0.028}}[6] | spectral_type = C [3] | abs_magnitude = 10.20[6][7]{{·}}{{val|10.50|0.22}}[26]{{·}}10.70[3][8][11]{{·}}10.8 }}Lilofee (minor planet designation: 1003 Lilofee), provisional designation {{mp|1923 OK}}, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 33 kilometers in diameter. It was discovered on 13 September 1923, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany.[31] The asteroid was named after the Black Forrest mermaid "Lilofee" from German folklore.[2] Orbit and classificationLilofee is a member of the Themis family ({{small|602}}),[3][4] a very large family of carbonaceous, low-inclination asteroids, named after 24 Themis.[35]{{rp|23}} It orbits the Sun in the outer main-belt at a distance of 2.6–3.6 AU once every 5 years and 7 months (2,032 days). Its orbit has an eccentricity of 0.16 and an inclination of 2° with respect to the ecliptic.The asteroid was first identified as {{mp|A915 HB}} at Bergedorf Observatory in April 1915. The body's observation arc begins with its official discovery observation at Heidelberg.[31] Physical characteristicsLilofee is an assumed carbonaceous C-type asteroid,[3] which corresponds to the overall spectral type of the Themis family.[35]{{rp|23}} LightcurvesSince 2004, several rotational lightcurves of Lilofee were obtained from photometric observations by astronomers René Roy, Enric Forné and Robert Stephens. Lightcurve analysis gave a rotation period of 8.255 hours with a brightness variation of 0.57 magnitude ({{small|U=2+/3/3}}).[12][14]{{efn|name=lightcurve-plot-Stephens}} In 2013, an international study modeled a lightcurve with a concurring period of 8.24991 hours and found a spin axis of (n.a., −99.0°) in ecliptic coordinates (λ, β).[13] Diameter and albedoAccording to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lilofee measures between 27.29 and 36 kilometers in diameter and its surface has an albedo between 0.07 and 0.198.[6][7][8][9][11] The Collaborative Asteroid Lightcurve Link adopts an albedo of 0.08 and calculates a diameter of 34.04 kilometers based on an absolute magnitude of 10.7.[3] NamingThis minor planet was named after the legendary mermaid/neck Lilofee, who lived in the small Mummelsee of the Black Forest in southwest Germany. Lilofee is also the title figure in the German folk-song The beautiful young Lilofee ("Die schöne junge Lilofee") by August Schnezler (1809–1853).[2] The asteroid was named by the discoverer ({{small|RI 402}}). The name was proposed by ARI-astronomer Johannes Riem, after whom 1025 Riema was named. The official naming citation was also mentioned in The Names of the Minor Planets by Paul Herget in 1955 ({{small|H 96}}).[2] Notes{{notelist|refs={{efn|name=lightcurve-plot-Stephens|1=Lightcurve plot of (1003) Lilofee by R. D. Stephens (2013) at CS3. Rotation period {{val|8.250|0.001}} hours with a brightness amplitude of {{val|0.54|0.02}} mag. Summary figures at Collaborative Asteroid Lightcurve Link}}}} References1. ^1 2 3 4 {{cite book |title = Dictionary of Minor Planet Names – (1003) Lilofee |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 87 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1004 |chapter = (1003) Lilofee }} [1][2][3][4][5][6][7][8][9][10][11][12][13][14]2. ^1 2 {{cite web |title = 1003 Lilofee (1923 OK) |work = Minor Planet Center |url = http://www.minorplanetcenter.net/db_search/show_object?object_id=1003 |accessdate = 13 September 2017}} 3. ^1 2 3 4 {{cite web |title = Asteroids and comets rotation curves – (1003) Lilofee |last = Behrend |first = Raoul |publisher = Geneva Observatory |url = http://obswww.unige.ch/~behrend/page3cou.html#001003 |accessdate = 13 September 2017}} 4. ^1 2 3 {{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= 13 September 2017}} 5. ^1 2 {{cite web |title = Small Bodies Data Ferret |work = Nesvorny HCM Asteroid Families V3.0 |url = https://sbntools.psi.edu/ferret/PropertySearch/familyForm.action |accessdate = 13 September 2017}} 6. ^1 2 {{Cite book |first1 = D. |last1 = Nesvorný |first2 = M. |last2 = Broz |first3 = V. |last3 = Carruba |date = December 2014 |title = Identification and Dynamical Properties of Asteroid Families |journal = Asteroids IV |pages = 297–321 |bibcode = 2015aste.book..297N |doi = 10.2458/azu_uapress_9780816532131-ch016 |arxiv = 1502.01628 |isbn = 9780816532131 }} 7. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (1003) Lilofee |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1003%7CLilofee |accessdate = 13 September 2017}} 8. ^1 2 3 4 {{Cite journal |display-authors = 6 |first1 = V. |last1 = Alí-Lagoa |first2 = J. |last2 = de León |first3 = J. |last3 = Licandro |first4 = M. |last4 = Delbó |first5 = H. |last5 = Campins |first6 = N. |last6 = Pinilla-Alonso |first7 = M. 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7 : Themis asteroids|Beagle asteroids|Discoveries by Karl Wilhelm Reinmuth|Minor planets named from literature|Minor planets named for fictional characters|Named minor planets|Astronomical objects discovered in 1923 |
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