Нептун

Бикипиэдьийэ диэн сиртэн ылыллыбыт
Нептун  Astronomical symbol for Neptune.
Neptune from Voyager 2
Нептун, Voyager 2 көрдөрүүтэ
Арыллыыта
Discovered by Urbain Le Verrier
John Couch Adams
Johann Galle
Discovery date September 23, 1846[1]
Designations
Adjective Neptunian
Эргийэр иитэ[2][3]
Epoch J2000
Aphelion 4,553,946,490 km
30.44125206 AU
Perihelion 4,452,940,833 km
29.76607095 AU
Semi-major axis 4,503,443,661 km
30.10366151 AU
Eccentricity 0.011214269
Orbital period 60,190[4] days
164.79 years
Synodic period 367.49 day[5]
Average orbital speed 5.43 km/s[5]
Mean anomaly 267.767281°
Inclination 1.767975°
6.43° to Sun's equator
Longitude of ascending node 131.794310°
Argument of perihelion 265.646853°
Satellites 13
Физика кээмэйдэрэ
Equatorial radius 24,764 ± 15 km[6][7]
3.883 Earths
Polar radius 24,341 ± 30 km[6][7]
3.829 Earths
Flattening 0.0171 ± 0.0013
Surface area 7.6408Халыып:E km²[4][7]
14.98 Earths
Volume 6.254Халыып:E km³[5][7]
57.74 Earths
Mass 1.0243×1026 kg[5]
17.147 Earths
Mean density 1.638 g/cm³[5][7]
Equatorial surface gravity 11.15 m/s²[5][7]
1.14 g
Escape velocity 23.5 km/s[5][7]
Sidereal rotation
period
0.6713 day[5]
16 h 6 min 36 s
Equatorial rotation velocity 2.68 km/s
9,660 km/h
Axial tilt 28.32°[5]
North pole right ascension Халыып:RA[6]
North pole declination 42.950°[6]
Albedo 0.290 (bond)
0.41 (geom.)[5]
Surface temp.
   1 bar level
   0.1 bar
min mean max
72 K[5]
55 K[5]
Apparent magnitude 8.0 to 7.78[5][8]
Angular diameter 2.2—2.4″[5][8]
Атмосферата[5]
Scale height 19.7 ± 0.6 km
Composition
80±3.2% Hydrogen (H2)
19±3.2% Helium
1.5±0.5% Methane
~0.019% Hydrogen deuteride (HD)
~0.00015% Ethane
Ices:
Ammonia
Water
Ammonium hydrosulfide(NH4SH)
Methane (?)

Нептун диэн Күнтэн ахсыс, ордук ыраах баар планета. Гаас планеталар ахсааннарыгар киирэр.

  1. Hamilton, Calvin J. Neptune. Views of the Solar System (Халыып:HumanizeDate). Тургутулунна 13 Атырдьах ыйын 2007.
  2. Yeomans, Donald K. HORIZONS System. NASA JPL (Халыып:HumanizeDate). Тургутулунна 8 Атырдьах ыйын 2007.—At the site, go to the "web interface" then select "Ephemeris Type: ELEMENTS", "Target Body: Neptune Barycenter" and "Center: Sun".
  3. Orbital elements refer to the barycentre of the Neptune system, and are the instantaneous osculating values at the precise J2000 epoch. Barycentre quantities are given because, in contrast to the planetary centre, they do not experience appreciable changes on a day-to-day basis from to the motion of the moons.
  4. Цитата сыыһата: Сыыһа <ref> тиэк (тег); fact2 диэн хос быһаарыыларга аналлаах тиэкис суох
  5. 5,00 5,01 5,02 5,03 5,04 5,05 5,06 5,07 5,08 5,09 5,10 5,11 5,12 5,13 5,14 Williams, David R. Neptune Fact Sheet. NASA (Халыып:HumanizeDate). Тургутулунна 14 Атырдьах ыйын 2007.
  6. 6,0 6,1 6,2 6,3 P. Kenneth, Seidelmann; Archinal, B. A.; A’hearn, M. F. et al (2007). «Report of the IAU/IAGWorking Group on cartographic coordinates and rotational elements». Celestial Mechanics and Dynamical Astronomy (Springer Netherlands) 90: 155–180. DOI:10.1007/s10569-007-9072-y. ISSN (Print) 0923-2958 (Print). Проверено 2008-03-07.
  7. 7,0 7,1 7,2 7,3 7,4 7,5 7,6 Refers to the level of 1 bar atmospheric pressure
  8. Цитата сыыһата: Сыыһа <ref> тиэк (тег); ephemeris диэн хос быһаарыыларга аналлаах тиэкис суох