Deimos

An enhanced-color image of Deimos ( MRO , 21 February 2009). Image: NASA/JPL-Caltech/University of Arizona
?????????
??????? ????????	Asaph Hall
??????? ????	12 August 1877
?????????
?????????	/ ? d a? m ? s / or / ? d iː m ? s / [1]
?????? ???	Mars II
???????	Deimosian
?????? ?????
????????? 2012-Sep-21 ( JD 2456191.5)
?????????????	23 455 .5 km
????????????	23 470 .9 km
??-??? ?????	23 463 .2 km [2] (6.92 Mars radii)
?????????????????	0.000 33 [2]
?????? ?????????	1.263  d [2] (30.312 h )
????????? ?????? ????	1.3513 km/s [3]
?????	0.93° (to Mars's equator) 1.791° (to the local Laplace plane ) [2] 27.58° (to the ecliptic )
???? ?????????????	Mars
????? ??????
???	15 × 12.2 × 11 km [4]
?????????? ???	6.2 ± 0.18 km [5] (0.97316 m Earths)
?????? ??????? ???????	495.1548 km 2 (0.970755 μ Earths)
??????	999.78 km 3 (92.2979 n Earths)
???????	1.4762 × 10 15  kg [3] (0.247179 n Earths)
?????????? ??????	1.471 ± 0.166 g/cm 3 [5]
???????? ??????? ????????	0.003 m/s 2 [3] (306 μ g )
?????? ????????	5.556 m/s (20 km/h) [3]
?????? ?????????	Synchronous [2]
????????????	0.068 ± 0.007 [5]
????????	? 233 K
?????? ?????????	12.89 [6]

???????? ?? ?????? ( ?????????:  Deimos), ????? ??????? ?? ?? ?????????.

??????? ????? [ ???????? ]

????? ????????? ????? ????????? ?? ?????? ????? ???????? ????? C ?? D ???? ?????? ?? ????? ????? ????????, ???????? ?? ????? ??.

?????????? ????????? ????? ???? ????? ????? ?????????? ? ??????? ???? ??? ??? ????????? ????? 15 x 12 x 10 km ??????? ??? ???? ?? ????????? ?????? ????? ??????? ?? ???? ????.

???????? ??? ?????????? ??????????? ?????? ???????? ????????? ????? ??? ???? ????? ??????? ?????? ?? ??????? ?? ????? ??? ????? ????? ????. ?????????? ??????? ??? ??? ?? ????? ??????? ???????? ??? ???????????? ?????? ??????? ???? ?????? ?????? ????????? ?? ??? ???? ?????? ?????? ????.

??????? ??? ??? ?? ?????????? 2.5 ?? ??? ??????? ??????????? ??? ??? ??????? ?? ?????? ??? ????? ???? ????? ??? ??????.?????????? ?????????? ???????? ?? ?? ????????? ??? ?????? ???? ?????? ???? ????????? ???????? ??. ??? 1.2648 ?? ?? ?? ?????????? ???? ???? ?????????? ????? ????? ????????? ???????? ? ????? ?????.

??? ??????? ?????? ?? ?????? ???????? ??? ??????????? ??? ?????. ???????? ??????????? ??? ???????? ??????. ?????????? ????? ????? ???????? ???????? ??? ????? ?????? ?? ??????? ????? ???? ????????? ?????? ?????? ?? ??????? 82.70 ?? ???? ??????? ???? ??? ?? ???????.

???????? [ ???????? ]

??? ????? ????? ????? ??????? . ???????????? ??????? ?????? ?? ?? ?? ??????????? ??? .

• v
• t
• e