The newest in Citizen’s line of the highly coveted Astrodea series of timepieces, the “small” version of the Astrodea Moon Age watch has a lower price than the original, but still packs the same great features into a smaller case. It also includes an Astrodea magnifier (10x) for up-close examinations.

Using the Astrodea you can determine:
- Moon age/phase
- Tidal ebb and flow (determined by moon age)
- Altitude and direction of the Moon
- Altitude and direction of the Sun.
- “Spring” and “neap” tides related to lunar positions
- Astronomical twilight
- The altitudes and directions of Sirius and Arcturus
- Local sidereal time (the hour angle of the vernal equinox)
- And, like the Celestial watch, a bunch of other stuff we don’t understand.

Click to buy the Astrodea Moon Age watch online




