True or False? The Sun rises and sets at different times during the year
- True
- False
This is when the Sun is either at its lowest or highest position during the year…
- Solstice
- Equinox
This is the time of year when day and night time are equal…
- Solstice
- Equinox
‘Apparent Sun’ means..?
- The position of the sun in the sky at a given time
- The time we use on our watches
A solar day is..?
- The time it takes for the Sun to arrive at the same point in the sky as the previous day
- The time it takes for a star to be positioned at the same point in the sky as the previous day
A Sidereal day is 4 minutes longer than a Solar Day. Why?
- The Sun rises earlier
- Earth rotates around the Sun
- Earth is orbiting at the same time as rotating around the Sun
The Equation of Time is..?
- Apparent solar time - Mean solar time
- Apparent solar time + Mean solar time
- Apparent solar time = Mean solar time
What is a disadvantage if using a sundial to tell the time..?
- Do not work when the Sun cannot cast a shadow
- Does not work correctly if not precisely aligned
- Requires use of equation of time calculations to be accurate
This can be used to determine local noon and observer’s longitude..?
- Orrery
- Planisphere
- Shadow Stick
What became the most accurate and reliable way to find longitude in the 18th Century onwards?
- Lunar Distance Method
- Horological Method