From Wikipedia, the free encyclopedia
1582 Martir , provisional designation 1950 LY , is a carbonaceous background
asteroid from the outer regions of the
asteroid belt , approximately 37 kilometers in diameter. It was discovered on 15 June 1950, by Argentine astronomer
Miguel Itzigsohn at the
La Plata Astronomical Observatory in Argentina.
[15] The asteroid was named after the First Lady of Argentina,
Eva Perón .
[2]
Orbit and classification
Martir is a background asteroid that does not belong to any known
asteroid family . It orbits the Sun in the
outer main-belt at a distance of 2.8–3.6
AU once every 5 years and 7 months (2,047 days). Its orbit has an
eccentricity of 0.13 and an
inclination of 12
° with respect to the
ecliptic .
[1] The body's
observation arc begins at the discovering observatory with its official discovery observation.
[15]
Physical characteristics
Martir has been characterized as a carbonaceous
C-type asteroid by
PanSTARRS photometric survey.
[14]
Rotation period
In May 2000, a rotational
lightcurve of Martir was obtained from photometric observations by American astronomer
Brian Warner at his Palmer Divide Observatory (
716 ) in Colorado. After a review of the previous lightcurve analysis, a half-period solution with a fit on a monomodal lightcurve gave a revised
rotation period of 9.84 hours with a brightness amplitude of 0.31
magnitude (
U=2 ).
[11]
[a] This result supersedes two previous analysis that gave a period of 15.665 and 15.757 hours.
[12]
[13]
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 , Martir measures between 34.42 and 39.969 kilometers in diameter and its surface has an
albedo between 0.038 and 0.060.
[4]
[5]
[6]
[7]
[8]
[9]
[10]
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0435 and a diameter of 36.69 kilometers based on an
absolute magnitude of 11.2.
[3]
Naming
This
minor planet was named in homage to the First Lady of Argentina,
Eva Perón (1919–1952). The name translates from Spanish to "
martyr " and refers to her efforts towards social justice. The official
naming citation was published by the
Minor Planet Center in January 1953 (
M.P.C. 877 ).
[2]
[16] The discoverer also named the asteroids
1569 Evita ,
1581 Abanderada ,
1588 Descamisada and
1589 Fanatica in tribute to Perón.
Notes
References
^
a
b
c
d
"JPL Small-Body Database Browser: 1582 Martir (1950 LY)" (2017-07-03 last obs.).
Jet Propulsion Laboratory . Archived from
the original on 18 September 2020. Retrieved 6 September 2017 .
^
a
b
c Schmadel, Lutz D. (2007). "(1582) Martir". Dictionary of Minor Planet Names – (1582) Martir .
Springer Berlin Heidelberg . p. 125.
doi :
10.1007/978-3-540-29925-7_1583 .
ISBN
978-3-540-00238-3 .
^
a
b
c
d
e
f
"LCDB Data for (1582) Martir" . Asteroid Lightcurve Database (LCDB). Retrieved 6 September 2017 .
^
a
b
c
d Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016).
"NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos" . The Astronomical Journal . 152 (3): 12.
arXiv :
1606.08923 .
Bibcode :
2016AJ....152...63N .
doi :
10.3847/0004-6256/152/3/63 .
^
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 )
^
a
b
c
d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004).
"IRAS Minor Planet Survey V6.0" . NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0 .
Bibcode :
2004PDSS...12.....T . Retrieved 17 October 2019 .
^
a
b
c
d Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015).
"NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos" . The Astrophysical Journal . 814 (2): 13.
arXiv :
1509.02522 .
Bibcode :
2015ApJ...814..117N .
doi :
10.1088/0004-637X/814/2/117 .
S2CID
9341381 . Retrieved 6 September 2017 .
^
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 .
S2CID
119293330 . Retrieved 6 September 2017 .
^
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 .
S2CID
46350317 . Retrieved 6 September 2017 .
^
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 .
S2CID
35447010 .
^
a
b Warner, Brian D. (October 2010).
"Upon Further Review: II. An Examination of Previous Lightcurve Analysis from the Palmer Divide Observatory" . The Minor Planet Bulletin . 37 (4): 150–151.
Bibcode :
2010MPBu...37..150W .
ISSN
1052-8091 . Retrieved 6 September 2017 .
^
a
b Warner, Brian D. (September 2006).
"Asteroid lightcurve analysis at the Palmer Divide Observatory - late 2005 and early 2006" . The Minor Planet Bulletin . 33 (3): 58–62.
Bibcode :
2006MPBu...33...58W .
ISSN
1052-8091 . Retrieved 6 September 2017 .
^
a
b Warner, B. (December 2000).
"Lightcurve Parameters for 1582 Martir" . The Minor Planet Bulletin . 27 : 53–54.
Bibcode :
2000MPBu...27...53W . Retrieved 6 September 2017 .
^
a
b
c Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015).
"Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results" . Icarus . 261 : 34–47.
arXiv :
1506.00762 .
Bibcode :
2015Icar..261...34V .
doi :
10.1016/j.icarus.2015.08.007 .
S2CID
53493339 . Retrieved 6 September 2017 .
^
a
b
"1582 Martir (1950 LY)" . Minor Planet Center . Retrieved 6 September 2017 .
^ 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.
Bibcode :
2009dmpn.book.....S .
doi :
10.1007/978-3-642-01965-4 .
ISBN
978-3-642-01964-7 .
External links