super moon
John's Weather-Watcher
christchurch, new  zealand

Sun and Moon

moon phase
 Jan 01
moon phase
 Jan 01
moon phase
 Jan 01
moon phase
 Jan 01
moon phase
 Jan 01



Sun Facts


The Sun accounts for 99.86% of the mass in the solar system.

It has a mass of around 330,000 times that of Earth. It is three-quarters hydrogen and most of its remaining mass is helium.

The Sun is almost a perfect sphere.

Considering the sheer size of the Sun, there is only a 10 km difference in its polar and equatorial diameters—this makes it the closest thing to a perfect sphere observed in nature.

The Sun is traveling at 220 km per second (137 miles per second).

It is around 24,000–26,000 light-years from the galactic center. Also, it takes the Sun approximately 225–250 million years to complete one orbit of the center of the Milky Way.

It takes eight minutes for light to reach Earth from the Sun.

The average distance from the Sun to the Earth is about 150 million km (93 million miles). Light travels at 300,000 km per second so dividing one by the other gives you 500 seconds or eight minutes and twenty seconds. This energy can reach Earth in mere minutes, but it takes millions of years to travel from the Sun’s core to its surface.

Temperatures inside the Sun can reach 15 million degrees Celsius (27 million °F).

Energy is generated through nuclear fusion in the Sun’s core. This is when hydrogen converts to helium. And because objects generally expand, the Sun would explode like an enormous bomb if it were not for its tremendous gravitational pull.

The atmosphere of the Sun comprises three layers.

These layers are the photosphere, the chromosphere, and the corona.

The Sun is classified as a yellow dwarf star.

It is a main-sequence star with surface temperatures between 5,000 and 5,700 degrees Celsius (9,000 and 10,300 degrees Fahrenheit).

Moon Facts

Mass   73490000000000000000000 kg
Colour   Gray
Core   Iron
Equatorial radius   1,737.4 kms
Mean density   3.34 gm/cm^3
Mean distance from Earth   384,400 kms
Orbital Period   27.32166 days
Avg length of Lunar Day   29.53059 days
Mean Orbital Velocity   1.03 km/sec
Orbital Eccentricity   0.0549
Tilt of axis   1.5424°
Orbital inclination   5.1454°
Equatorial surface gravity   1.62 m/sec^2
Mean Surface Temp   107°C day
Mean Surface Temp   -153°C night