| 词条 | 26 Proserpina |
| 释义 |
| image=A713.M1189.shape.png | image_size = 265 | caption= Three-dimensional model of 26 Proserpina created based on light-curve inversions. | minorplanet=yes | background=#D6D6D6 | name=26 Proserpina | symbol= | discoverer=R. Luther | discovered=May 5, 1853 | pronounced ={{IPAc-en|p|r|oʊ|ˈ|s|ɜːr|p|ᵻ|n|ə}} {{Respell|proh|SUR|pi-nə}} | mpc_name=(26) Proserpina | alt_names=1935 KK; {{mp|1954 WD|1}} | named_after = Proserpina | mp_category=Main belt | epoch=June 14, 2006 (JD 2453900.5) | semimajor=397.357 Gm (2.656 AU) | perihelion=362.816 Gm (2.425 AU) | aphelion=431.898 Gm (2.887 AU) | eccentricity=0.087 | period=1581.184 d (4.33 a) | inclination=3.562° | asc_node=45.884° | arg_peri=193.120° | mean_anomaly=115.619° | dimensions=94.8 ± 1.7 km (IRAS)[1] 89.63 ± 3.55 km[2] | mass={{nowrap|(7.48 ± 8.95) × 1017 kg[2]}} | density=1.98 ± 2.38 g/cm3[2] | rotation=13.11 h[1][1] | spectral_type=S[1] | abs_magnitude=7.5[1] | albedo=0.1966[1][2] }} Proserpina (minor planet designation: 26 Proserpina) is a main-belt asteroid discovered by R. Luther on May 5, 1853. It is named after the Roman goddess Proserpina, the daughter of Ceres and the Queen of the Underworld. Photometric observations of this asteroid have produced discrepant estimates of the rotation period. A period of 12.13 hours was reported in 1979, followed by 10.6 hours in 1981 and 6.67 hours in 2001. Observations made in 2007 at the Oakley Observatory in Terre Haute, Indiana produced a light curve with a period of 13.06 ± 0.03 hours and a brightness variation of 0.21 ± 0.01 in magnitude. This was refined by a 2008 study, giving a period of 13.110 ± 0.001 hours.[12] References1. ^http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab [3][4][5]2. ^http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab 3. ^1 2 3 4 5 {{cite web |type=2011-12-30 last obs |title=JPL Small-Body Database Browser: 26 Proserpina |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=26 |publisher=Jet Propulsion Laboratory |accessdate=2012-01-28}} 4. ^1 2 3 {{Citation | first1 = B. | last1 = Carry | title = Density of asteroids | work = Planetary and Space Science | volume = 73 | pages = 98–118 |date=December 2012 | doi = 10.1016/j.pss.2012.03.009 | bibcode = 2012P&SS...73...98C | postscript= .|arxiv = 1203.4336 }} See Table 1. 5. ^1 {{Citation | last1 = Pilcher | first1 = Frederick | title = Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta | work = The Minor Planet Bulletin | volume = 35 | issue = 3 | pages = 135–138 |date=September 2008 | bibcode = 2008MPBu...35..135P | postscript= .}} }} External links
7 : Background asteroids|Discoveries by Robert Luther|Minor planets named from Roman mythology|Named minor planets|S-type asteroids (Tholen)|S-type asteroids (SMASS)|Astronomical objects discovered in 1853 |
| 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。