Deimos (chaand)

mos (chaand), nai to Mars II, Mangalgrah (Mars) ke chhotkana chandarma hae. Duusra chandarma ke naam Phobos hae. Iske naam Greek me se aais hae aur iske matlab "terror" hae. Ii har 30.3 ghantaa me Mars ke parikramaa kare hae. Deimos ke diameter khaali 15 kilomters hae aur ii craters se bharaaa hae. Iske 12 August 1877 me Asaph Hall paais rahaa.

Deimos
Deimos ke chhaapa
Discovery
Discovered byAsaph Hall
Discovery date12 August 1877
Designations
Designation
Mars II
Pronunciation/ˈdməs/[1] to /ˈdməs/[2]
or as Greek Δεῖμος
(approximated /ˈdmɒs/)[3]
Named after
Δεῖμος
AdjectivesDeimian /ˈdmiən/[4]
Orbital characteristics
Epoch 23 September 2012 (JD 2456191.5)
Periapsis23455.5 km
Apoapsis23470.9 km
23463.2 km[5] (6.92 Mars radii)
Eccentricity0.00033[5]
1.263 d[5]
(30.312 h)
1.3513 km/s[6]
Inclination0.93° (to Mars's equator)
1.791° (to the local Laplace plane)[5]
27.58° (to the ecliptic)
Satellite ofMangalgrah
Physical characteristics
Dimensions16.08 × 11.78 × 10.22 km
(0.16 × 0.12 × 0.10 km)[7]
Mean radius
6.27±0.07 km[7]
522±8 km2[7]
Volume1033±19 km3[7]
Mass1.4762×1015 kg[6]
Mean density
1.465±0.051 g/cm3[7]
0.003 m/s2[6]
(306 µg)
5.556 m/s
(20 km/h)[6]
Synchronous[5]
Albedo0.068±0.007[8]
Temperature≈ 233 K
12.89[9]
  1. The Century Dictionary and Cyclopedia (1914)
  2. "Moons of Mars – the Center for Planetary Science". Archived from the original on 2023-04-09. Retrieved 2024-02-28.
  3. "Deimos". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 22 March 2020.
  4. Harry Shipman (2013) Humans in Space: 21st Century Frontiers, p. 317
  5. 5.0 5.1 5.2 5.3 5.4 "HORIZONS Web-Interface". NASA. 21 September 2013. Retrieved 4 December 2013.
  6. 6.0 6.1 6.2 6.3 Cite error: Invalid <ref> tag; no text was provided for refs named NASA
  7. 7.0 7.1 7.2 7.3 7.4 Cite error: Invalid <ref> tag; no text was provided for refs named Ernst2023
  8. Cite error: Invalid <ref> tag; no text was provided for refs named JPLSSD
  9. "Mars' Moons".