“114 Kassandra”的意思、由来-开放百科全书

Kassandra (minor planet designation: 114 Kassandra) is a large and dark main-belt asteroid. It belongs to the rare class T. It was discovered by C. H. F. Peters on July 23, 1871, and is named after Cassandra, the prophetess in the tales of the Trojan War. The asteroid is featured in the 2009 film Meteor, in which it is split in two by a comet, and set on a collision course with Earth.

This object is classified as a rare T-type asteroid, with parts of the spectrum displaying properties similar to the mineral troilite and to carbonaceous chondrite.^[11] The shape of the spectrum also appears similar to fine grain from the Ornans meteorite, which landed in France in 1868.^[12] The light curve for this asteroid displays a period of 10.758 ± 0.004 hours with a brightness variation of 0.25 ± 0.01 in magnitude.^[5]

During 2001, 114 Kassandra was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 100 ± 14 km. This is consistent with the asteroid dimensions computed through other means.^[14]

References

1. ^¹²³⁴{{Citation | last1 = Pravec | first1 = P. | last2 = Harris | first2 = A. W. | last3 = Kusnirak | first3 = P. | last4 = Galad | first4 = A. | last5 = Hornoch | first5 = K. | display-authors = 1 | title = Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations | work = Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan | issue = 1667 |date=May 2012 | bibcode = 2012LPICo1667.6089P | postscript= .}}
2. ^¹{{Citation | first1 = E. | last1 = Dotto | first2 = M. A. | last2 = Barucci | first3 = T. G. | last3 = Müller | first4 = J. R. | last4 = Brucato | first5 = M. | last5 = Fulchignoni | first6 = V. | last6 = Mennella | first7 = L. | last7 = Colangeli | display-authors = 1 | title = ISO observations of low and moderate albedo asteroids. PHT-P and PHT-S results | work = Astronomy and Astrophysics | volume = 393 | pages = 1065–1072 |date=October 2002 | doi = 10.1051/0004-6361:20021190 | bibcode = 2002A&A...393.1065D | postscript= .}}
3. ^¹{{Citation | first1 = Victoria E. | last1 = Hamilton | title = Thermal infrared (vibrational) spectroscopy of Mg-Fe olivines: A review and applications to determining the composition of planetary surfaces | work = Chemie der Erde - Geochemistry | volume = 70 | issue = 1 | pages = 7–33 |date=March 2010 | doi = 10.1016/j.chemer.2009.12.005 | bibcode = 2010ChEG...70....7H | postscript= .}}
4. ^¹²{{Citation | last1 = Hutton | first1 = R. G. | last2 = Blain | first2 = A. | title = V+B Photoelectric Photometry of Asteroid 114 Kassandra | work = The Minor Planet Bulletin | volume = 15 | page = 39 |date=December 1988 | bibcode = 1988MPBu...15...39H | postscript= .}}
5. ^¹{{citation | last1=Magri | first1=Christopher | last2=Nolan | first2=Michael C. | last3=Ostro | first3=Steven J. | last4=Giorgini | first4=Jon D. | display-authors=1 | title=A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003 | journal=Icarus | volume=186 | issue=1 | pages=126–151 |date=January 2007 | doi=10.1016/j.icarus.2006.08.018 | bibcode=2007Icar..186..126M}}

词条	114 Kassandra
释义	References External links {{Infobox planet \| minorplanet=yes \| background=#D6D6D6 \| name=114 Kassandra \| discoverer=Christian Heinrich Friedrich Peters \| discovered=23 July 1871 \| mpc_name=(114) Kassandra \| alt_names= \| pronounced={{IPAc-en\|k\|ə\|'\|s\|æ\|n\|d\|r\|ə}} \| named_after=Cassandra \| mp_category=Main belt \| epoch=31 July 2016 (JD 2457600.5) \| orbit_ref= \| semimajor={{Convert\|2.67825\|AU\|Gm\|abbr=on}} \| perihelion={{Convert\|2.31581\|AU\|Gm\|abbr=on}} \| aphelion={{Convert\|3.0407\|AU\|Gm\|abbr=on\|lk=on}} \| eccentricity=0.13533 \| period=4.38 yr (1600.9 d) \| inclination=4.9367° \| asc_node=164.222° \| arg_peri=352.208° \| mean_anomaly=197.019° \| avg_speed=18.12 km/s \| dimensions={{val\|99.65\|1.9\|ul=km}} 99.798 km^[3] \| mass=1.0{{e\|18}} kg \| density= \| surface_grav=0.0278 m/s² \| escape_velocity=0.0527 km/s \| rotation={{Convert\|10.7431\|h\|d\|abbr=on\|lk=on}} 10.758 h^[5] \| spectral_type=T (Tholen)^[3] \| abs_magnitude=8.26, 8.275^[3] \| albedo={{val\|0.0884\|0.003}} 0.0868 ± 0.0252^[3] \| single_temperature=~170 K \| mean_motion={{Deg2DMS\|0.224868\|sup=ms}} / day \| observation_arc=113.62 yr (41501 d) \| uncertainty=0 \| moid={{Convert\|1.3244\|AU\|Gm\|abbr=on}} \| jupiter_moid={{Convert\|1.94976\|AU\|Gm\|abbr=on}} \| tisserand=3.359 }} Kassandra (minor planet designation: 114 Kassandra) is a large and dark main-belt asteroid. It belongs to the rare class T. It was discovered by C. H. F. Peters on July 23, 1871, and is named after Cassandra, the prophetess in the tales of the Trojan War. The asteroid is featured in the 2009 film Meteor, in which it is split in two by a comet, and set on a collision course with Earth. This object is classified as a rare T-type asteroid, with parts of the spectrum displaying properties similar to the mineral troilite and to carbonaceous chondrite.^[11] The shape of the spectrum also appears similar to fine grain from the Ornans meteorite, which landed in France in 1868.^[12] The light curve for this asteroid displays a period of 10.758 ± 0.004 hours with a brightness variation of 0.25 ± 0.01 in magnitude.^[5] During 2001, 114 Kassandra was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 100 ± 14 km. This is consistent with the asteroid dimensions computed through other means.^[14] References 1. ^¹²³⁴{{Citation \| last1 = Pravec \| first1 = P. \| last2 = Harris \| first2 = A. W. \| last3 = Kusnirak \| first3 = P. \| last4 = Galad \| first4 = A. \| last5 = Hornoch \| first5 = K. \| display-authors = 1 \| title = Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations \| work = Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan \| issue = 1667 \|date=May 2012 \| bibcode = 2012LPICo1667.6089P \| postscript= .}} 2. ^¹{{Citation \| first1 = E. \| last1 = Dotto \| first2 = M. A. \| last2 = Barucci \| first3 = T. G. \| last3 = Müller \| first4 = J. R. \| last4 = Brucato \| first5 = M. \| last5 = Fulchignoni \| first6 = V. \| last6 = Mennella \| first7 = L. \| last7 = Colangeli \| display-authors = 1 \| title = ISO observations of low and moderate albedo asteroids. PHT-P and PHT-S results \| work = Astronomy and Astrophysics \| volume = 393 \| pages = 1065–1072 \|date=October 2002 \| doi = 10.1051/0004-6361:20021190 \| bibcode = 2002A&A...393.1065D \| postscript= .}} 3. ^¹{{Citation \| first1 = Victoria E. \| last1 = Hamilton \| title = Thermal infrared (vibrational) spectroscopy of Mg-Fe olivines: A review and applications to determining the composition of planetary surfaces \| work = Chemie der Erde - Geochemistry \| volume = 70 \| issue = 1 \| pages = 7–33 \|date=March 2010 \| doi = 10.1016/j.chemer.2009.12.005 \| bibcode = 2010ChEG...70....7H \| postscript= .}} 4. ^¹²{{Citation \| last1 = Hutton \| first1 = R. G. \| last2 = Blain \| first2 = A. \| title = V+B Photoelectric Photometry of Asteroid 114 Kassandra \| work = The Minor Planet Bulletin \| volume = 15 \| page = 39 \|date=December 1988 \| bibcode = 1988MPBu...15...39H \| postscript= .}} 5. ^¹{{citation \| last1=Magri \| first1=Christopher \| last2=Nolan \| first2=Michael C. \| last3=Ostro \| first3=Steven J. \| last4=Giorgini \| first4=Jon D. \| display-authors=1 \| title=A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003 \| journal=Icarus \| volume=186 \| issue=1 \| pages=126–151 \|date=January 2007 \| doi=10.1016/j.icarus.2006.08.018 \| bibcode=2007Icar..186..126M}} ^[1]^[2]^[3]^[4]^[5] }} External links {{AstDys\|114}} {{JPL small body}} {{Minor planets navigator \|113 Amalthea \|number=114 \|115 Thyra}}{{Small Solar System bodies}}{{DEFAULTSORT:Kassandra}} 7 : Background asteroids\|Discoveries by Christian Peters\|Minor planets named from Greek mythology\|Named minor planets\|T-type asteroids (Tholen)\|Xk-type asteroids (SMASS)\|Astronomical objects discovered in 1871
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References

External links