polytropos' photos with the keyword: Halbmond
hot spots on the moon
26 Sep 2017 |
|
|
|
hot spots on the moon, visible from the earth.
One day in the far past the moon stopped rotating because of the force of gravity of the earth. That's why we see now always the same side of the moon.
In the above picture we can see the half of the waxing moon.
Taken with a Nikon, mounted on a reflector telescope Ø 85 mm.
01 – 06: Vallis Alpes and mares ("oceans") on the moon.
11 – 17: Apollo landing points on the moon, 1969, 1971 and 1972.
21 – 27: biggest craters.
➽ See also PIP ;-)
➽ enlargement Ko Hummel
(46.7392, 07.3868)
a faithful companion
26 Sep 2017 |
|
|
|
waxing half moon
Foto mit einer Nikon, montiert an ein Reflektor-Teleskop Ø 85 mm.
Ich habe das Bild noch in alten Beständen gefunden, und gedacht, das dürfe ich der Öffentlichkeit nicht vorenthalten ;-)
Anziehungskraft Erde / Mond:
Gravitationskonstante G: 6,67430 * 10^-11 m³/kg*s²
Gewicht des Mondes (m1): 73’490’000’000’000’000’000’000 kg (7,349 * 10^22 kg)
Gewicht der Erde (m2): 5,972 * 10^24 kg
Abstand – Mond (r): 384'400 km (384'000'000 m)
Anziehungskraft F = G * ((m1 * m2) / r) =
[(6,6743 * 10^-11) * (5,972 * 10^24) * (7,349 * 10^22)] / 384'000'000² = 1,985 * 10^20 Newton.
1 N = 0,102 kg
F = 2,02486 * 10^19 kg (20'248'600'000 t)
(46.7394, 07.3783)
[170/200]
Jump to top
RSS feed- polytropos' latest photos with "Halbmond" - Photos
- ipernity © 2007-2025
- Help & Contact
|
Club news
|
About ipernity
|
History |
ipernity Club & Prices |
Guide of good conduct
Donate | Group guidelines | Privacy policy | Terms of use | Statutes | In memoria -
Facebook
Twitter