| 词条 | 574 Reginhild |
| 释义 |
| minorplanet= yes | background= #D6D6D6 | name= 574 Reginhild | mpc_name= (574) Reginhild | alt_names= 1905 RD | discoverer= M. F. Wolf | discovered= 19 September 1905 | discovery_site= Heidelberg | epoch= 31 July 2016 (JD 2457600.5) | orbit_ref= | eccentricity= 0.23985 | semimajor= {{Convert|2.2522|AU|Gm|abbr=on}} | perihelion= {{Convert|1.7120|AU|Gm|abbr=on}} | aphelion= {{Convert|2.7924|AU|Gm|abbr=on|lk=on}} | period= 3.38 yr (1234.6 d) | inclination= 5.6840° | asc_node= 336.810° | arg_peri= 76.710° | mean_anomaly= 249.806° | rotation= {{Convert|14.339|h|d|abbr=on|lk=on}}[3] | mean_motion= {{Deg2DMS|0.29160|sup=ms}} / day | observation_arc= 109.81 yr (40109 d) | uncertainty= 0 | abs_magnitude= 12.30 | albedo= {{val|0.3819|0.057}} | mean_radius= {{val|3.73|0.25}} km }} Reginhild (minor planet designation: 574 Reginhild) is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on September 19, 1905. Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a light curve with a period of 14.339 ± 0.001 hours and a brightness variation of 0.17 ± 0.02 in magnitude. The light curve shows three uneven minimums and maximums per rotation cycle.[3]References1. ^1 2 {{Citation | last1 = Pilcher | first1 = Frederick | title = Rotation Period Determinations for 25 Phocaea, 140 Siwa, 149 Medusa 186 Celuta, 475 Ocllo, 574 Reginhild, and 603 Timandra | work = The Minor Planet Bulletin | volume = 38 | issue = 2 | pages = 76–78 |date=April 2011 | bibcode = 2011MPBu...38...76P | postscript= .}} [1]}} External links
6 : Background asteroids|Discoveries by Max Wolf|Named minor planets|Minor planets with names of unknown origin|S-type asteroids (Tholen)|Astronomical objects discovered in 1905 |
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