Story of moon night 🌉

However, because it has a large angular diameter, the full moon is the brightest celestial object in the night sky.
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Moon.
Designations
Apogee 405400 km (404000–406700 km)
Semi-major axis 384399 km (1.28 ls, 0.00257 AU)
Eccentricity 0.0549
Orbital period (sidereal) 27.321661 d (27 d 7 h 43 min 11.5 s)

The Moon is Earth's only natural satellite. At about one-quarter the diameter of Earth (comparable to the width of Australia),[16] it is the fifth largest satellite in the Solar System, the largest satellite in the Solar System relative to its major planet,[f] and larger than any known dwarf planet. The Moon is a planetary-mass object that formed a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term.[17] It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's (0.1654 g). Jupiter's moon Io is the only satellite in the Solar System known to have a higher surface gravity and density.

Designations
Designation
Earth I
Alternative names
LunaSelene (poetic)Cynthia (poetic)
Adjectives
LunarSelenian (poetic)Cynthian (poetic)Moonly (poetic)
Orbital characteristics
Epoch J2000
Perigee
362600 km
(356400–370400 km)
Apogee
405400 km
(404000–406700 km)
Semi-major axis
384399 km (1.28 ls, 0.00257 AU)[1]
Eccentricity
0.0549[1]
Orbital period (sidereal)
27.321661 d
(27 d 7 h 43 min 11.5 s[1])
Orbital period (synodic)
29.530589 d
(29 d 12 h 44 min 2.9 s)
Average orbital speed
1.022 km/s
Inclination
5.145° to the ecliptic[2][a]
Longitude of ascending node
Regressing by one revolution in 18.61 years
Argument of perigee
Progressing by one
revolution in 8.85 years
Satellite of
Earth[b][3]
Physical characteristics
Mean radius
1737.4 km
(0.2727 of Earth's)[1][4][5]
Equatorial radius
1738.1 km
(0.2725 of Earth's)[4]
Polar radius
1736.0 km
(0.2731 of Earth's)[4]
Flattening
0.0012[4]
Circumference
10921 km (equatorial)
Surface area
3.793×107 km2
(0.074 of Earth's)
Volume
2.1958×1010 km3
(0.02 of Earth's)[4]
Mass
7.342×1022 kg
(0.0123 of Earth's)[1][4][6]
Mean density
3.344 g/cm3[1][4]
0.606 × Earth
Surface gravity
1.622 m/s2 (0.1654 g; 5.318 ft/s2)[4]
Moment of inertia factor
0.3929±0.0009[7]
Escape velocity
2.38 km/s
(8600 km/h; 5300 mph)
Synodic rotation period
29.530589 d
(29 d 12 h 44 min 2.9 s; synodic; solar day) (spin-orbit locked)
Sidereal rotation period
27.321661 d (spin-orbit locked)
Equatorial rotation velocity
4.627 m/s
Axial tilt
1.5424° to ecliptic[8]
6.687° to orbit plane[2]
24° to Earth's equator [9]
North pole right ascension
17h 47m 26s
266.86°[10]
North pole declination
65.64°[10]
Albedo
0.136[11]
Surface temp. min mean max
Equator 100 K[12] 250 K 390 K[12]
85°N 150 K 230 K[13]
Surface absorbed dose rate
13.2 μGy/h[14]
Surface equivalent dose rate
57.0 μSv/h[14]
Apparent magnitude
−2.5 to −12.9[c]
−12.74 (mean full moon)[4]
Angular diameter
29.3 to 34.1 arcminutes[4][d]