About This Book
Venus and Mercury have long been regarded as difficult targets for amateur observers, but advances in commercially-made telescopes have brought them within the skills of observers of only moderate experience. Peter Grego’s fascinating book presents an up-to-date, detailed description of the history...
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Reading Time Estimates
6h 45m
slow reader
180 WPM
4h 52m
average reader
250 WPM
3h 28m
fast reader
350 WPM
📖 72,875 words📅 10 days at 30 min/day
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WPM
Reading time
4 h 52 min
at 250 words per minute
Audiobook (1.5x)
5 h 24 min
at 1.5x narration speed
Audio 1x
8 h 6 min
Audio 2x
4 h 3 min
That's about:
- 📅10 days reading 30 min/day
- 🚇10 commutes of 30 min each
