| 词条 | 447 Valentine |
| 释义 |
| minorplanet=yes | background=#D6D6D6 | name=447 Valentine | discoverer=M. F. Wolf A. Schwassmann | discovered=27 October 1899 | mpc_name=(447) Valentine | alt_names=1899 ES | mp_category=Main belt | epoch=31 July 2016 (JD 2457600.5) | semimajor={{Convert|2.98472|AU|Gm|abbr=on}} | perihelion={{Convert|2.85330|AU|Gm|abbr=on}} | aphelion={{Convert|3.11615|AU|Gm|abbr=on|lk=on}} | eccentricity=0.044033 | period=5.16 yr (1883.5 d) | inclination=4.79460° | asc_node=71.8375° | arg_peri=322.874° | mean_anomaly=218.145° | dimensions={{val|79.22|3.2|ul=km}} | mass= | density= | rotation={{Convert|9.651|h|d|abbr=on|lk=on}} | spectral_type= | abs_magnitude=8.99 | albedo={{val|0.0714|0.006}} | mean_motion={{Deg2DMS|0.191138|sup=ms}} / day | orbit_ref=[1] | observation_arc=121.46 yr (44363 d) | uncertainty=0 }} Valentine (minor planet designation: 447 Valentine) is a large Main belt asteroid. It was discovered by Max Wolf and A. Schwassmann on 27 October 1899 in Heidelberg. References1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=447;cad=1 |title=447 Valentine (1899 ES) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=10 May 2016}} External links
7 : Background asteroids|Discoveries by Max Wolf|Discoveries by Friedrich Karl Arnold Schwassmann|Minor planets named for people|Named minor planets|TD-type asteroids (Tholen)|Astronomical objects discovered in 1899 |
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