| 词条 | 287 Nephthys |
| 释义 |
| minorplanet=yes | background=#D6D6D6 | name=287 Nephthys | discoverer=C. H. F. Peters | discovered=25 August 1889 | mpc_name=(287) Nephthys | alt_names= | named_after=Nephthys | mp_category=Main belt | epoch=31 July 2016 (JD 2457600.5) | orbit_ref=[1] | semimajor={{Convert|2.3531|AU|Gm|abbr=on}} | perihelion={{Convert|2.29814|AU|Gm|abbr=on}} | aphelion={{Convert|2.4080|AU|Gm|abbr=on|lk=on}} | eccentricity=0.023344 | period=3.61 yr (1318.4 d) | inclination=10.034° | asc_node=142.381° | arg_peri=121.02° | mean_anomaly=125.74° | dimensions={{val|67.60|1.4|ul=km}} | mass= | density= | rotation={{Convert|7.605|h|d|abbr=on|lk=on}} | spectral_type=S | abs_magnitude=8.30,[1] 8.26 | albedo={{val|0.1851|0.008}} | single_temperature= | mean_motion={{Deg2DMS|0.27306|sup=ms}} / day | observation_arc=119.35 yr (43594 d) | uncertainty=0 }} Nephthys (minor planet designation: 287 Nephthys) is a large Main belt asteroid that was discovered by German-American astronomer C. H. F. Peters on August 25, 1889, in Clinton, New York and named after Nephthys in Egyptian mythology.[4] It is classified as an S-type asteroid. References1. ^1 2 {{Citation | first1 = Donald K. | last1 = Yeomans | title = 287 Nephthys | work = JPL Small-Body Database Browser | publisher = NASA Jet Propulsion Laboratory | url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=287 | accessdate= 11 May 2016 | postscript= .}} [1][2]2. ^1 {{Citation | first1 = Lutz D. | last1 = Schmadel | title = Dictionary of Minor Planet Names | publisher = Springer | page = 38 | year = 2012 | isbn = 3642297188 | postscript= .}} }} External links
6 : Background asteroids|Discoveries by Christian Peters|Minor planets named from Egyptian mythology|Named minor planets|S-type asteroids (Tholen)|Astronomical objects discovered in 1889 |
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