“157 Dejanira”的意思、由来-开放百科全书

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157 Dejanira

释义

References
External links

{{Use mdy dates|date=April 2012}}{{Infobox planet
| minorplanet=yes
| background=#D6D6D6
| name=157 Dejanira
| image= 157Dejanira (Lightcurve Inversion).png
| image_size = 265
| caption=A three-dimensional model of 157 Dejanira based on its light curve.
| discovery_ref=^[1]
| discoverer=A. Borrelly
| discovered=1 December 1875
| mpc_name=(157) Dejanira
| alt_names=
| pronounced={{IPAc-en|d|iː|ə|'|n|aɪr|ə}}
| mp_category=Main belt
| orbit_ref=^[2]
| epoch=31 July 2016 (JD 2457600.5)
| semimajor={{Convert|2.58161|AU|Gm|abbr=on}}
| perihelion={{Convert|2.07801|AU|Gm|abbr=on}}
| aphelion={{Convert|3.0852|AU|Gm|abbr=on|lk=on}}
| eccentricity=0.19507
| period=4.15 yr (1515.1 d)
| inclination=12.160°
| asc_node=62.070°
| mean_anomaly=312.135°
| avg_speed=18.36 km/s
| dimensions=19.1 km
| mass=7.3{{e|15}} kg
| density=2.0 g/cm³
| surface_grav=0.0053 m/s²
| escape_velocity=0.0101 km/s
| sidereal_day=
| axial_tilt=
| pole_ecliptic_lat=
| pole_ecliptic_lon=
| spectral_type=
| abs_magnitude=11.2
| albedo=0.10
| single_temperature=~173 K
| arg_peri=46.282°
| mean_motion={{Deg2DMS|0.23761|sup=ms}} / day
| observation_arc=111.13 yr (40590 d)
| uncertainty=0
| rotation={{Convert|15.825|h|d|abbr=on|lk=on}}
| moid={{Convert|1.11241|AU|Gm|abbr=on}}
| jupiter_moid={{Convert|2.16656|AU|Gm|abbr=on}}
| tisserand=3.366
}}

Dejanira (minor planet designation: 157 Dejanira) is a main belt asteroid that was discovered by Alphonse Borrelly on December 1, 1875, and named after the warlike princess Deianira in Greek mythology (Δηιάνειρα in Greek). The Dejanira family of asteroids is named after it.

Photometric observations of this asteroid were made in early 2009 at the Organ Mesa Observatory in Las Cruces, New Mexico. The resulting light curve shows a synodic rotation period of 15.825 ± 0.001 hours.^[4]

References

1. ^
2. ^{{Cite web |url=ftp://ftp.lowell.edu/pub/elgb/astorb.html |website=astorb |title=The Asteroid Orbital Elements Database |publisher=Lowell Observatory}}
3. ^¹{{Citation | first1 = Frederick | last1 = Pilcher | title = Rotation Period Determinations for 120 Lachesis, 131 Vala 157 Dejanira, and 271 Penthesilea | work = The Minor Planet Bulletin | volume = 36 | issue = 3 | pages = 100–102 |date=July 2009 | bibcode = 2009MPBu...36..100P | postscript= .}}

^[3]

}}

External links

Lightcurve plot of 157 Dejanira, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info)
[https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
{{AstDys|157}}
{{JPL small body}}

{{Use dmy dates|date=May 2018}}{{Minor planets navigator |156 Xanthippe |number=157 |158 Koronis}}{{Small Solar System bodies}}{{DEFAULTSORT:Dejanira}}{{beltasteroid-stub}}

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