| 词条 | 184 Dejopeja |
| 释义 |
| minorplanet= yes | mpc_name= (184) Dejopeja | background= #D6D6D6 | name= 184 Dejopeja | pronounced={{IPAc-en|d|iː|ə|'|p|iː|ə}} | image= 184Dejopeja (Lightcurve Inversion).png | image_size = 265 | caption= A three-dimensional model of 184 Dejopeja based on its light curve. | mp_category= Main belt | semimajor= {{Convert|3.1873|AU|Gm|abbr=on}} | perihelion= {{Convert|2.9741|AU|Gm|abbr=on}} | aphelion= {{Convert|3.4005|AU|Gm|abbr=on|lk=on}} | period= 5.69 yr (2078.4 d) | inclination= 1.1437° | eccentricity= 0.066883 | rotation= {{Convert|6.455|h|d|abbr=on|lk=on}} | spectral_type= M | abs_magnitude= 8.31 | albedo= {{val|0.1897|0.012}} | discoverer= J. Palisa, 1878 | discovered= 28 February 1878 | epoch= 31 July 2016 (JD 2457600.5) | asc_node= 331.61° | arg_peri= 209.72° | mean_anomaly= 119.18° | mean_motion= {{Deg2DMS|0.17321|sup=ms}} / day | orbit_ref= [1] | observation_arc= 123.52 yr (45117 d) | uncertainty= 0 | mean_radius= {{val|33.235|1}} km | moid= {{Convert|1.97613|AU|Gm|abbr=on}} | jupiter_moid= {{Convert|1.56558|AU|Gm|abbr=on}} | tisserand= 3.194 }} Dejopeja (minor planet designation: 184 Dejopeja) is a large M-type Main belt asteroid. It was discovered by Johann Palisa on February 28, 1878, and was named after Deiopea, a Roman nymph. This is an X-type asteroid with a diameter of 66 km and a geometric albedo of 0.190. Based upon Photometric observations taken during 2000, it has a synodic rotation period of 6.441 ± 0.001 h. The light curve is tri-modal, most likely due to an angular shape, with a peak-to-peak amplitude of 0.19 ± 0.01 in magnitude. References1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=184;cad=1 |title=184 Dejopeja |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=6 May 2016}} }} External links
7 : Background asteroids|Discoveries by Johann Palisa|Minor planets named from Roman mythology|Named minor planets|X-type asteroids (Tholen)|X-type asteroids (SMASS)|Astronomical objects discovered in 1878 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。