习近平"4·19讲话"蕴含国家网络治理的"五观"
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| ???????????????(???) | ??????? 2 ??????? ?????? |
| ????????????? ???? | ???? 16, 1989 |
| ?????????18 ?????? 1989 | |
| ???????????? ????? ???????????? | 117,584 ± 10 ??.??. |
| ???????????? ?????? ???????????? | 117,709 ± 10 ??.??. |
| ???????????? | 117,647 ± 1 ??.??. (4.75 RN) |
| ??????????????? | 0.00053 ± 0.00009 |
| ???????????? ????? | 1.12231477 ± 0.00000002 ?? |
| ?????? ???????????? ????? | 7.623 ??.??./?? |
| ?????? | 0.524° (???????????? ???????? ???? ???) 0.026 ± 0.007° (????? ???????????? ???? ???) |
| ??? ???? ?????????? | ?????????? |
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| |
| ??????????? | 424×390×396 ??.??.[2][a] |
| ?????? ???? | 210 ± 7 ??.??.[5] |
| ?????? | 3.4 ± 0.4 ×107??.??.3[2] |
| ???? | 4.4×1019 ????[b] |
| ???????? | ~1.3 ??/????3 (???.)[5] |
| ?????????????? ???????????? | 0.07 ??/??2[c] |
| ??????? ????????? | 0.17 ??.??./??[d] |
| ????????? ????? | ???????????? ???????[2] |
| ?????????? ?????? | ???????[2] |
| ??????? ????? | 0.096[5][6] |
| ????????? | ~51 ?? ?????? (???.) |
| ????? ??????? | 19.7[5] |
| ????????????? | puroodiyan |
????????? (Proteus, /?pro?ti??s/;[e] ?????????: Πρωτε??), ?????? ?????????? VIII), ?????? ?????????? ?????? ????????? ????? ????? ?????. 1989 ??? ??????? ??????? 2 ???????? ?????? ??????????????. ????????? ???????????? ???? ???????? ???????? ?????????? ??????????? ??????????? ????? ???????????? ?????????????. ????????? ?????????? ???? ?????? ?????????????????? ?????????? ?????? ????????.
??????????? ??????? ??????????? 400 ??.??. ??????? ?????????? ???????????, ???? ?????????? ????????????? ?????????????, ??????????????, ?????? ??????????? ???????????. ???? ?????? ???????? ??????? 200 ??.??. ??????? ?????????????. ???????? ?? ???????????? ????????? ??????????????.
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[????]- ↑ In the earlier papers slightly different dimensions were reported. Thomas and Veverka in 1991 reported 440×416×404 km.[2][3] Croft in 1992 reported 430×424×410 km.[4] The difference is caused by the use of different sets of images and by the fact that the shape of Proteus is not described well by a triaxial ellipsoid.[2]
- ↑ The mass was calculated by multiplying the volume from Stooke (1994)[2] by the assumed density of 1,300 kg/m3. If one uses slightly larger dimensions from the earlier papers the mass will increase to 5×1019 kg.[5]
- ↑ Surface gravity derived from the mass m, the gravitational constant G and the radius r: Gm/r2.
- ↑ Escape velocity derived from the mass m, the gravitational constant G and the radius r: √2Gm/r.
- ↑ In US dictionary transcription, US dict: prō′·tē·?s.
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[????]- ↑
????:10.1086/423037 10.1086/423037
This citation will be automatically completed in the next few minutes. You can jump the queue or expand by hand - ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6
????:10.1007/BF00572198 10.1007/BF00572198
This citation will be automatically completed in the next few minutes. You can jump the queue or expand by hand - ↑ Williams, Dr. David R. (2025-08-06). "Neptunian Satellite Fact Sheet". ????? ????????????? ??????? ???????? ????????? (National Space Science Data Center). Retrieved 2025-08-06.
- ↑
????:10.1016/0019-1035(92)90156-2 10.1016/0019-1035(92)90156-2
This citation will be automatically completed in the next few minutes. You can jump the queue or expand by hand - ↑ 5.0 5.1 5.2 5.3 5.4 "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 2025-08-06. Retrieved 2025-08-06.
- ↑
????:10.1016/S0019-1035(03)00002-2 10.1016/S0019-1035(03)00002-2
This citation will be automatically completed in the next few minutes. You can jump the queue or expand by hand
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- Proteus Profile ????????????? 2025-08-06 at the ??????? ????????? at NASA's Solar System Exploration site
- Proteus page at The Nine Planets
- Proteus, A Moon Of Neptune on Views of the Solar System
- Ted Stryk's Proteus Page ????????????? 2025-08-06 at the ??????? ?????????
- Neptune's Known Satellites