ON7AMI

Amateur Radio and Astronomy website. JO10UX

The Moon.

Satelite from Earth.

  • Perigee: 362600 km (356400–370400 km)
  • Apogee: 405400 km (404000–406700 km)
  • Semi-major axis: 384399 km (0.00257 AU)
  • Eccentricity: 0.0549
  • Orbital period: 27.321582 days (27 d 7 h 43.1 min)
  • Average orbital speed: 1.022 km/s
  • Inclination: 5.145° to the ecliptic
  • Mean radius: 1737.10 km (0.273 Earths)
  • Equatorial radius: 1738.14 km (0.273 Earths)
  • Polar radius: 1735.97 km (0.273 Earths)
  • Flattening: 0.00125
  • Circumference: 10921 km (equatorial)
  • Surface area: 3.793×107 km2 (0.074 Earths)
  • Volume: 2.1958×1010 km3 (0.020 Earths)
  • Mass: 7.3477×1022 kg (0.012300 Earths)
  • Mean density: 3.3464 g/cm3 0.606 × Earth
  • Surface gravity: 1.622 m/s2 (0.1654 g)
  • Escape velocity: 2.38 km/s
  • Sidereal rotation period: 27.321582 d (synchronous)
  • Equatorial rotation velocity: 4.627 m/s
  • Surface temp.Equator min 100 K mean 220 K max 390 K
  • Surface temp.85°N [6] min 70 K mean 130 K max 230 K
  • Apparent magnitude: −2.5 to −12.9
  • Angular diameter: 29.3 to 34.1 arcminutes
  • Atmosphere Surface pressure: 10−7 Pa (day) 10−10 Pa (night)
30/12/2014

Blood Moon from 28/09/2015

For more Pictures click here....

28/08/2015

Albetegnius, Klein, Halley and Hind craters

Detail 12°S - 5°W.

29/11/2014

Ukert and Triesnecker craters and Hyginus Rille.

Detail 7°N - 5°W.

29/11/2014

GSM Picture.

Picture taken with GSM trough the lens of the telescope.

29/11/2012

سُوۡرَةُ حٰمٓ السجدة / فُصّلَت
ثُمَّ اسْتَوَىٰ إِلَى السَّمَاءِ وَهِيَ دُخَانٌ فَقَالَ لَهَا وَلِلْأَرْضِ ائْتِيَا طَوْعًا أَوْ كَرْهًا قَالَتَا أَتَيْنَا طَائِعِينَ ﴿١١
فَقَضَاهُنَّ سَبْعَ سَمَاوَاتٍ فِي يَوْمَيْنِ وَأَوْحَىٰ فِي كُلِّ سَمَاءٍ أَمْرَهَا ۚ وَزَيَّنَّا السَّمَاءَ الدُّنْيَا بِمَصَابِيحَ وَحِفْظًا ۚ ذَٰلِكَ تَقْدِيرُ الْعَزِيزِ الْعَلِيمِ ﴿١٢


Surah Fussilat: Thereafter turned He to the heaven and it was as smoke, and said Unto it and Unto the earth: come ye twain, willingly or loth. They said: we come willingly. (11) Then He decreed them as seven heavens in two days, and revealed Unto each heaven the command thereof; and We bedecked the nether heaven with lamps and placed therein a guard. That is the ordinance of the Mighty, the Knower. (12)

De hemelen en aarde (waren) een samenhangende massa. Wij hebben ze toen van elkaar gescheiden… Wij hebben de hemel tot een beschermend dak gemaakt … en de dag en de nacht, de zon en de maan geschapen. (Koran 41 11:12)


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