| 词条 | 603 Timandra |
| 释义 |
| minorplanet= yes | background= #D6D6D6 | name= 603 Timandra | mpc_name= (603) Timandra | alt_names= 1906 TJ | discoverer= Joel Hastings Metcalf | discovered= 16 February 1906 | discovery_site= Taunton, Massachusetts | epoch= 31 July 2016 (JD 2457600.5) | orbit_ref= | eccentricity= 0.17460 | semimajor= {{Convert|2.5378|AU|Gm|abbr=on}} | perihelion= {{Convert|2.0947|AU|Gm|abbr=on}} | aphelion= {{Convert|2.9809|AU|Gm|abbr=on|lk=on}} | period= 4.04 yr (1476.7 d) | inclination= 8.0265° | asc_node= 343.455° | arg_peri= 159.764° | mean_anomaly= 87.1291° | rotation= {{Convert|41.79|h|d|abbr=on|lk=on}}[3] | mean_motion= {{Deg2DMS|0.24379|sup=ms}} / day | observation_arc= 110.08 yr (40205 d) | uncertainty= 0 | abs_magnitude= 11.8 | albedo= {{val|0.1354|0.019}} | mean_radius= {{val|6.865|0.45}} km }} Timandra (minor planet designation: 603 Timandra) is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on February 16, 1906, in Taunton, Massachusetts. Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2010 gave a light curve with a long rotation period of 41.79 ± 0.02 hours and a brightness variation of 0.10 ± 0.02 in magnitude.[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
5 : Background asteroids|Minor planets named from Greek mythology|Named minor planets|Astronomical objects discovered in 1906|Discoveries by Joel Metcalf |
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