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1092 Lilium
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Carbonaceous background asteroid
October 2019
yes
1092 Lilium
#D6D6D6
K. Reinmuth
Heidelberg Obs.
12 January 1924
(1092) Lilium
1924 PN1929 BE1936 QE
ˈ l ɪ l i ə mlilium
Līlium (flowering plant)
main-belt(outer)background
4 September 2017 (JD 2458000.5)
0
110.67 yr (40,421 days)
3.1444 AU
2.6552 AU
2.8998 AU
0.0843
4.94 yr (1,804 days)
200.62°
0.1996 ms / day
5.3885°
307.49°
316.51°
37.78 12.75 km40.276 0.243 km42.853 0.266 km43.23 0.33 km46.17 1.5 km49.56 13.84 km52.79 0.87 km
17.63 h24.60 0.05 hlightcurve-plot
0.030 0.0010.0390 0.0030.04 0.020.044 0.0050.0452 0.00710.05 0.03
C (assumed)B–V 0.840U–B 0.330
10.8210.90 0.2810.97
1092 Lilium, provisional designation 1924 PN, is a dark, carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 44 kilometers in diameter. It was discovered on 12 January 1924, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the flower Lilium (true lily).
Orbit and classification
Lilium is a non-family asteroid from the main belt's background population. It orbits the Sun in the outer asteroid belt at a distance of 2.7–3.1 AU once every 4 years and 11 months (1,804 days). Its orbit has an eccentricity of 0.08 and an inclination of 5° with respect to the ecliptic.
The body's observation arc begins with a precovery image taken at the Lowell Observatory in July 1906, almost 18 years prior to its official discovery observation at Heidelberg.
Physical characteristics
Lilium is an assumed carbonaceous C-type asteroid.
Rotation period
In February 2008, a rotational lightcurve of Lilium was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory (716) in Colorado.lightcurve-plot Lightcurve analysis gave a longer-than average rotation period of 24.60 hours with a brightness amplitude of 0.25 magnitude (U=3), superseding a period of 17.63 hours by Richard Binzel from March 1984 (U=1).
Diameter and albedo
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lilium measures between 37.78 and 52.79 kilometers in diameter and its surface has an albedo between 0.030 and 0.05.
The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0390 and a diameter of 46.17 kilometers based on an absolute magnitude of 10.82.
Naming
This minor planet was named by the discoverer after the true lily flowering planet, Lilium. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 103).
Reinmuth's flowers
Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries, with numbers between 1009 (1009) and 1200 (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants).
Notes
lightcurve-plot Lightcurve plot of 1092 Lilium, Palmer Divide Observatory, Brian D. Warner (2008) Summary figures at the LCDB
References
30em 2017-03-29 last obs.
JPL Small-Body Database Browser: 1092 Lilium (1924 PN)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001092
Jet Propulsion Laboratory
25 September 2017
Dictionary of Minor Planet Names – (1092) Lilium
Schmadel Lutz D.
Springer Berlin Heidelberg
93
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1093 (1092) Lilium
Dictionary of Minor Planet Names – (1054) Forsytia
Schmadel Lutz D.
Springer Berlin Heidelberg
90
2007
978-3-540-00238-3
10.1007/978-3-540-29925-7_1055 (1054) Forsytia
1092 Lilium (1924 PN)
Minor Planet Center
https://www.minorplanetcenter.net/db_search/show_object?object_id=1092
25 September 2017
6
Joseph R. Masiero
T. Grav
A. K. Mainzer
C. R. Nugent
J. M. Bauer
R. Stevenson
S. Sonnett
August 2014
Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M
The Astrophysical Journal
791
2
11
2014ApJ...791..121M
10.1088/0004-637X/791/2/121
1406.6645
119293330 25 September 2017
Asteroid 1092 Lilium – Proper Elements
AstDyS-2, Asteroids – Dynamic Site
https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1092
28 October 2019
1092
25 September 2017
6
Joseph R. Masiero
A. K. Mainzer
T. Grav
J. M. Bauer
R. M. Cutri
C. Nugent
M. S. Cabrera
November 2012
Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M
The Astrophysical Journal Letters
759
1
5
2012ApJ...759L...8M
10.1088/2041-8205/759/1/L8
1209.5794
46350317 25 September 2017
6
C. R. Nugent
A. Mainzer
J. Masiero
J. Bauer
R. M. Cutri
T. Grav
E. Kramer
S. Sonnett
R. Stevenson
E. L. Wright
December 2015
NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N
The Astrophysical Journal
814
2
13
2015ApJ...814..117N
10.1088/0004-637X/814/2/117
1509.02522
9341381 25 September 2017
6
C. R. Nugent
A. Mainzer
J. Bauer
R. M. Cutri
E. A. Kramer
T. Grav
J. Masiero
S. Sonnett
E. L. Wright
September 2016
NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos
The Astronomical Journal
152
3
12
2016AJ....152...63N
10.3847/0004-6256/152/3/63
1606.08923
free
6
Fumihiko Usui
Daisuke Kuroda
Thomas G. Müller
Sunao Hasegawa
Masateru Ishiguro
Takafumi Ootsubo
Daisuke Ishihara
Hirokazu Kataza
Satoshi Takita
Shinki Oyabu
Munetaka Ueno
Hideo Matsuhara
Takashi Onaka
October 2011
Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey
Publications of the Astronomical Society of Japan
63
5
1117–1138
2011PASJ...63.1117U
10.1093/pasj/63.5.1117
(online, AcuA catalog p. 153)
E. F. Tedesco
P. V. Noah
M. Noah
S. D. Price
October 2004
IRAS Minor Planet Survey V6.0
https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
NASA Planetary Data System
12
IRAS-A-FPA-3-RDR-IMPS-V6.0
2004PDSS...12.....T
22 October 2019
6
A. Mainzer
T. Grav
J. Masiero
E. Hand
J. Bauer
D. Tholen
R. S. McMillan
T. Spahr
R. M. Cutri
E. Wright
J. Watkins
W. Mo
C. Maleszewski
November 2011
NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results
The Astrophysical Journal
741
2
25
2011ApJ...741...90M
10.1088/0004-637X/741/2/90
1109.6407
Binzel, R. P.
October 1987
A photoelectric survey of 130 asteroids
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B
Icarus
72
1
135–208
0019-1035
1987Icar...72..135B
10.1016/0019-1035(87)90125-4
25 September 2017
Warner, Brian D.
September 2008
Asteroid Lightcurve Analysis at the Palmer Divide Observatory: December 2007 - March 2008
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35...95W
The Minor Planet Bulletin
35
3
95–98
1052-8091
2008MPBu...35...95W
25 September 2017
6
Peter Veres
Robert Jedicke
Alan Fitzsimmons
Larry Denneau
Mikael Granvik
Bryce Bolin
Serge Chastel
Richard J. Wainscoat
William S. Burgett
Kenneth C. Chambers
Heather Flewelling
Nick Kaiser
Eugen A. Magnier
Jeff S. Morgan
Paul A. Price
John L. Tonry
Christopher Waters
November 2015
Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results
http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V
Icarus
261
34–47
2015Icar..261...34V
10.1016/j.icarus.2015.08.007
1506.00762
53493339 25 September 2017
External links
Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1092
1091 Spiraea 1092 1093 Freda
001092
Category:Discoveries by Karl Wilhelm Reinmuth
Category:Named minor planets
19240112