“(38050) 1998 VR38”的意思、由来-开放百科全书

It orbits the Sun at a distance of 4.8–5.6 AU once every 11 years and 10 months (4,337 days; semi-major axis of 5.2 AU). Its orbit has an eccentricity of 0.08 and an inclination of 29° with respect to the ecliptic.

The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at the Siding Spring Observatory in August 1982, more than 16 years prior to its official discovery observation at Socorro.^[1]

Physical characteristics

Rotation period

Several rotational lightcurves of {{mp|1998 VR|38}} have been obtained from photometric observations. In June 2006, Lawrence Molnar at Calvin University determined a rotation period of {{val|18.854|0.005}} hours with a brightness variation of 0.37 magnitude, using the Calvin-Rehoboth Robotic Observatory in New Mexico.({{small|U=3}}).^[9]^[11]

In September 2008 observations at the Roque de los Muchachos Observatory gave a period of 18.854 hours with an amplitude of 0.22 magnitude ({{small|U=2-}}), while astronomers at the Palomar Transient Factory obtained a period of 18.917 hours in the R-band in October 2010 ({{small|U=2}}).^[9]^[32]^[33]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, {{mp|1998 VR|38}} measures between 50.44 and 61.603 kilometers in diameter and its surface has an albedo between 0.056 and 0.133.^[8]^[10] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 61.04 kilometers based on an absolute magnitude of 9.8.^[9]

Numbering and naming

This minor planet was numbered on 28 March 2002 ({{small|M.P.C. 22480}}).^[23] As of 2018, it has not been named.^[1]

References

1. ^¹²³⁴⁵⁶⁷{{cite web |title = 38050 (1998 VR38) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=38050 |accessdate = 18 June 2018}}
2. ^¹²{{cite web |title = List of Jupiter Trojans |work = Minor Planet Center |first3 = V. |last3 = Carruba |date = 1 June 2018 |url = https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html |accessdate = 18 June 2018}}
3. ^¹²{{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 18 June 2018}}
4. ^¹²³{{cite journal |first1 = T. |last1 = Grav |first2 = A. K. |last2 = Mainzer |first3 = J. M. |last3 = Bauer |first4 = J. R. |last4 = Masiero |first5 = C. R. |last5 = Nugent |date = November 2012 |title = WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759...49G |journal = The Astrophysical Journal |volume = 759 |issue = 1 |page = 10 |bibcode = 2012ApJ...759...49G |doi = 10.1088/0004-637X/759/1/49 |arxiv = 1209.1549 |access-date= 18 June 2018}} (online catalog)
5. ^¹²{{cite web |title = Asteroid (38050) 1998 VR38 – Proper Elements |publisher = AstDyS-2, Asteroids – Dynamic Site |url = http://hamilton.dm.unipi.it/astdys/index.php?n=38050&pc=1.1.6 |access-date= 18 June 2018}}
6. ^¹²³⁴⁵⁶⁷⁸⁹{{cite web |title = LCDB Data for (38050) |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=38050%7C |accessdate = 18 June 2018}}
7. ^¹{{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 = https://arxiv.org/pdf/1109.6407v1.pdf |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 |access-date= 18 June 2018}} (catalog)
8. ^¹²³⁴{{cite journal |display-authors = 6 |first1 = Fumihiko |last1 = Usui |first2 = Daisuke |last2 = Kuroda |first3 = Thomas G. |last3 = Müller |first4 = Sunao |last4 = Hasegawa |first5 = Masateru |last5 = Ishiguro |first6 = Takafumi |last6 = Ootsubo |first7 = Daisuke |last7 = Ishihara |first8 = Hirokazu |last8 = Kataza |first9 = Satoshi |last9 = Takita |first10 = Shinki |last10 = Oyabu |first11 = Munetaka |last11 = Ueno |first12 = Hideo |last12 = Matsuhara |first13 = Takashi |last13 = Onaka |date = October 2011 |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 |volume = 63 |issue = 5 |pages = 1117–1138 |bibcode = 2011PASJ...63.1117U |doi = 10.1093/pasj/63.5.1117 |access-date= 18 June 2018}} (online, [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])
9. ^¹{{Cite journal |first1 = M. D. |last1 = Melita |first2 = R. |last2 = Duffard |first3 = I. P. |last3 = Williams |first4 = D. C. |last4 = Jones |first5 = J. |last5 = Licandro |first6 = J. L. |last6 = Ortiz |date = June 2010 |title = Lightcurves of 6 Jupiter Trojan asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2010P&SS...58.1035M |journal = Planetary and Space Science |volume = 58 |issue = 7-8 |pages = 1035–1039 |bibcode = 2010P&SS...58.1035M |doi = 10.1016/j.pss.2010.03.009 |access-date= 18 June 2018}}
10. ^¹²{{Cite journal |first1 = Lawrence A. |last1 = Molnar |first2 = Melissa, J. |last2 = Haegert |first3 = Kathleen M. |last3 = Hoogeboom |date = June 2008 |title = Lightcurve Analysis of an Unbiased Sample of Trojan Asteroids |url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35...82M |journal = The Minor Planet Bulletin |volume = 35 |issue = 2 |pages = 82–84 |issn = 1052-8091 |bibcode = 2008MPBu...35...82M |access-date= 18 June 2018}}
11. ^¹{{cite journal |display-authors = 6 |first1 = Adam |last1 = Waszczak |first2 = Chan-Kao |last2 = Chang |first3 = Eran O. |last3 = Ofek |first4 = Russ |last4 = Laher |first5 = Frank |last5 = Masci |first6 = David |last6 = Levitan |first7 = Jason |last7 = Surace |first8 = Yu-Chi |last8 = Cheng |first9 = Wing-Huen |last9 = Ip |first10 = Daisuke |last10 = Kinoshita |first11 = George |last11 = Helou |first12 = Thomas A. |last12 = Prince |first13 = Shrinivas |last13 = Kulkarni |date = September 2015 |title = Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry |url = https://arxiv.org/pdf/1504.04041.pdf |journal = The Astronomical Journal |volume = 150 |issue = 3 |page = 35 |bibcode = 2015AJ....150...75W |doi = 10.1088/0004-6256/150/3/75 |arxiv = 1504.04041 |access-date= 18 June 2018}}

词条	(38050) 1998 VR38
释义	Orbit and classification Physical characteristics Rotation period Diameter and albedo Numbering and naming References External links {{DISPLAYTITLE:{{mp\|(38050) 1998 VR\|38}}}}{{Infobox planet \| minorplanet = yes \| name = {{mp\|(38050) 1998 VR\|38}} \| background = #C2FFFF \| image = \| image_size = \| caption = \| discovery_ref = ^[1] \| discoverer = LINEAR \| discovery_site = Lincoln Lab's ETS \| discovered = 10 November 1998 \| mpc_name = (38050) {{mp\|1998 VR\|38}} \| alt_names = {{mp\|1998 VR\|38}}{{·}}{{mp\|1988 AV\|4}} \| pronounced = \| named_after = \| mp_category = Jupiter trojan ^[1] {{nowrap\|Greek ^[5]{{·}}background ^[6]}} \| orbit_ref = \| epoch = 23 March 2018 (JD 2458200.5) \| uncertainty = 0 \| observation_arc = 35.76 yr (13,061 d) \| aphelion = 5.5973 AU \| perihelion = 4.8115 AU \| semimajor = 5.2044 AU \| eccentricity = 0.0755 \| period = 11.87 yr (4,337 d) \| mean_anomaly = 212.19° \| mean_motion = {{Deg2DMS\|0.0830\|sup=ms}} / day \| inclination = 28.547° \| asc_node = 233.56° \| arg_peri = 192.06° \| jupiter_moid = 0.1971 AU \| tisserand = 2.7520 \| mean_diameter = {{val\|50.44\|4.24\|ul=km}}^[8] {{val\|61.04\|u=km}} {{small\|(calculated)}}^[9] {{val\|61.60\|0.33\|u=km}}^[10] \| rotation = {{val\|18.854\|0.005\|ul=h}}^[11] \| albedo = {{val\|0.056\|0.007}}^[10] {{val\|0.133\|0.026}}^[8] \| spectral_type = C {{small\|(assumed)}}^[9] V–I {{=}} {{val\|0.990\|0.053}}^[9] \| abs_magnitude = 9.40^[8] 9.8^[1]^[9]^[20] }}{{mp\|(38050 ) 1998 VR\|38}}, provisional designation {{mp\|1998 VR\|38}}, is a Jupiter trojan from the Greek camp, approximately {{convert\|61\|km\|mi\|abbr=off\|sigfig=2\|sp=us}} in diameter. It was discovered on 10 November 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at Lincoln Lab's ETS in Socorro, New Mexico.^[1] The dark Jovian asteroid is one of the 70 largest Jupiter trojans and has a rotation period of 18.9 hours.^[9] It has not been named since its numbering in March 2002.^[23] Orbit and classification {{mp\|1998 VR\|38}} is a dark Jovian asteroid orbiting in the leading Greek camp at Jupiter's {{L4}} Lagrangian point, 60° ahead of the Gas Giant's orbit in a 1:1 resonance {{cross reference\|(see Trojans in astronomy)}}.^[5] It is also a non-family asteroid in the Jovian background population.^[6] It orbits the Sun at a distance of 4.8–5.6 AU once every 11 years and 10 months (4,337 days; semi-major axis of 5.2 AU). Its orbit has an eccentricity of 0.08 and an inclination of 29° with respect to the ecliptic. The body's observation arc begins with a precovery published by the Digitized Sky Survey and taken at the Siding Spring Observatory in August 1982, more than 16 years prior to its official discovery observation at Socorro.^[1] Physical characteristics {{mp\|1998 VR\|38}} has a V–I color index of 0.99, typical for most D-type asteroid. It is also an assumed C-type.^[9] Rotation period Several rotational lightcurves of {{mp\|1998 VR\|38}} have been obtained from photometric observations. In June 2006, Lawrence Molnar at Calvin University determined a rotation period of {{val\|18.854\|0.005}} hours with a brightness variation of 0.37 magnitude, using the Calvin-Rehoboth Robotic Observatory in New Mexico.({{small\|U=3}}).^[9]^[11] In September 2008 observations at the Roque de los Muchachos Observatory gave a period of 18.854 hours with an amplitude of 0.22 magnitude ({{small\|U=2-}}), while astronomers at the Palomar Transient Factory obtained a period of 18.917 hours in the R-band in October 2010 ({{small\|U=2}}).^[9]^[32]^[33] Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, {{mp\|1998 VR\|38}} measures between 50.44 and 61.603 kilometers in diameter and its surface has an albedo between 0.056 and 0.133.^[8]^[10] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 61.04 kilometers based on an absolute magnitude of 9.8.^[9] {{Largest Jupiter trojans}} Numbering and naming This minor planet was numbered on 28 March 2002 ({{small\|M.P.C. 22480}}).^[23] As of 2018, it has not been named.^[1] References 1. ^¹²³⁴⁵⁶⁷{{cite web \|title = 38050 (1998 VR38) \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=38050 \|accessdate = 18 June 2018}} 2. ^¹²{{cite web \|title = List of Jupiter Trojans \|work = Minor Planet Center \|first3 = V. \|last3 = Carruba \|date = 1 June 2018 \|url = https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html \|accessdate = 18 June 2018}} 3. ^¹²{{cite web \|title = MPC/MPO/MPS Archive \|work = Minor Planet Center \|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html \|accessdate = 18 June 2018}} 4. ^¹²³{{cite journal \|first1 = T. \|last1 = Grav \|first2 = A. K. \|last2 = Mainzer \|first3 = J. M. \|last3 = Bauer \|first4 = J. R. \|last4 = Masiero \|first5 = C. R. \|last5 = Nugent \|date = November 2012 \|title = WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759...49G \|journal = The Astrophysical Journal \|volume = 759 \|issue = 1 \|page = 10 \|bibcode = 2012ApJ...759...49G \|doi = 10.1088/0004-637X/759/1/49 \|arxiv = 1209.1549 \|access-date= 18 June 2018}} (online catalog) 5. ^¹²{{cite web \|title = Asteroid (38050) 1998 VR38 – Proper Elements \|publisher = AstDyS-2, Asteroids – Dynamic Site \|url = http://hamilton.dm.unipi.it/astdys/index.php?n=38050&pc=1.1.6 \|access-date= 18 June 2018}} 6. ^¹²³⁴⁵⁶⁷⁸⁹{{cite web \|title = LCDB Data for (38050) \|publisher = Asteroid Lightcurve Database (LCDB) \|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=38050%7C \|accessdate = 18 June 2018}} 7. ^¹{{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 = https://arxiv.org/pdf/1109.6407v1.pdf \|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 \|access-date= 18 June 2018}} (catalog) 8. ^¹²³⁴{{cite journal \|display-authors = 6 \|first1 = Fumihiko \|last1 = Usui \|first2 = Daisuke \|last2 = Kuroda \|first3 = Thomas G. \|last3 = Müller \|first4 = Sunao \|last4 = Hasegawa \|first5 = Masateru \|last5 = Ishiguro \|first6 = Takafumi \|last6 = Ootsubo \|first7 = Daisuke \|last7 = Ishihara \|first8 = Hirokazu \|last8 = Kataza \|first9 = Satoshi \|last9 = Takita \|first10 = Shinki \|last10 = Oyabu \|first11 = Munetaka \|last11 = Ueno \|first12 = Hideo \|last12 = Matsuhara \|first13 = Takashi \|last13 = Onaka \|date = October 2011 \|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 \|volume = 63 \|issue = 5 \|pages = 1117–1138 \|bibcode = 2011PASJ...63.1117U \|doi = 10.1093/pasj/63.5.1117 \|access-date= 18 June 2018}} (online, [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153]) 9. ^¹{{Cite journal \|first1 = M. D. \|last1 = Melita \|first2 = R. \|last2 = Duffard \|first3 = I. P. \|last3 = Williams \|first4 = D. C. \|last4 = Jones \|first5 = J. \|last5 = Licandro \|first6 = J. L. \|last6 = Ortiz \|date = June 2010 \|title = Lightcurves of 6 Jupiter Trojan asteroids \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2010P&SS...58.1035M \|journal = Planetary and Space Science \|volume = 58 \|issue = 7-8 \|pages = 1035–1039 \|bibcode = 2010P&SS...58.1035M \|doi = 10.1016/j.pss.2010.03.009 \|access-date= 18 June 2018}} 10. ^¹²{{Cite journal \|first1 = Lawrence A. \|last1 = Molnar \|first2 = Melissa, J. \|last2 = Haegert \|first3 = Kathleen M. \|last3 = Hoogeboom \|date = June 2008 \|title = Lightcurve Analysis of an Unbiased Sample of Trojan Asteroids \|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35...82M \|journal = The Minor Planet Bulletin \|volume = 35 \|issue = 2 \|pages = 82–84 \|issn = 1052-8091 \|bibcode = 2008MPBu...35...82M \|access-date= 18 June 2018}} 11. ^¹{{cite journal \|display-authors = 6 \|first1 = Adam \|last1 = Waszczak \|first2 = Chan-Kao \|last2 = Chang \|first3 = Eran O. \|last3 = Ofek \|first4 = Russ \|last4 = Laher \|first5 = Frank \|last5 = Masci \|first6 = David \|last6 = Levitan \|first7 = Jason \|last7 = Surace \|first8 = Yu-Chi \|last8 = Cheng \|first9 = Wing-Huen \|last9 = Ip \|first10 = Daisuke \|last10 = Kinoshita \|first11 = George \|last11 = Helou \|first12 = Thomas A. \|last12 = Prince \|first13 = Shrinivas \|last13 = Kulkarni \|date = September 2015 \|title = Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry \|url = https://arxiv.org/pdf/1504.04041.pdf \|journal = The Astronomical Journal \|volume = 150 \|issue = 3 \|page = 35 \|bibcode = 2015AJ....150...75W \|doi = 10.1088/0004-6256/150/3/75 \|arxiv = 1504.04041 \|access-date= 18 June 2018}} ^[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 Discovery Circumstances: Numbered Minor Planets (35001)-(40000) – Minor Planet Center [https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=38050 Asteroid (38050) 1998 VR38] at the Small Bodies Data Ferret {{AstDys\|38050}} {{JPL small body\|id=2038050}} {{Use dmy dates\|date=June 2018}}{{Minor planets navigator \| \|number=38050 \| }}{{Small Solar System bodies}}{{DEFAULTSORT:1998 VR38}} 3 : Jupiter trojans (Greek camp)\|Discoveries by LINEAR\|Astronomical objects discovered in 1998
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Orbit and classification

Physical characteristics

Rotation period

Diameter and albedo

Numbering and naming

References

External links