The Sky at Night · SEASON 14
When Mercury Crosses the Sun
Episode 5 · 1970-04-28
- Documentary
- News
Episode overview
On 9 May the tiny planet Mercury will be seen as a black dot in transit across the sun's disc. Because it orbits close to the sun, Mercury has always been difficult to observe, and astronomers can only guess at the nature of this planet. Patrick Moore explains how a spacecraft will fly past Mercury in 1973 and send back television pictures.
Season 14 episodes
1. Wanderers in Space1970-01-12
2. Orion1970-01-27
3. The Crab Nebula1970-02-24
4. Photography on the Moon1970-03-23
5. When Mercury Crosses the Sun1970-04-28
6. Amateur Astronomers1970-05-26
7. Steering by the Stars1970-06-16
8. The Moons of Mars1970-07-14
9. Astronomers in the Space Age1970-08-25
10. Moon-quakes!1970-09-15
11. Rockets to the Planet1970-10-14
12. Infra-Red Astronomy1970-11-18
13. Planets of Other Suns1970-12-16
