Photography
Check how big the Sun will be on your sensor: the transiting planet is a tiny dot. Approximate thin-lens calculation.
Tips for this event
- You need a telescope and a certified front-mounted solar filter for the whole transit.
- Mercury's disc is very small: you need a long focal length.
Field of view
0.53° disc to scale. The halo marks 3 solar diameters: it is a framing guide for the corona, not its real shape.
- Field
- 3.44° × 2.29°
- Effective focal length
- 600 mm
- Sun on the sensor
- 5.58 mm
- Width covered
- 16 %