A theory of atoms cannot establish a birth hour
The Nobel Foundation records Bohr’s day and city of birth. This entry uses that evidence to explore date-only planetary signs. His scientific work is historical context, not a clue from which to reconstruct an undocumented Ascendant.
Planetary sign range for the recorded date
The possible signs cover hourly positions across the recorded date and every civil-day UTC offset from +14 to −12. Without a verified birth hour or offset, a body that crosses a sign boundary remains unresolved.
| Body | Possible signs | Reading note |
|---|---|---|
| Sun | Libra | Same sign in all hourly samples |
| Moon | Virgo / Libra | Birth hour or offset may change the sign |
| Mercury | Libra | Same sign in all hourly samples |
| Venus | Scorpio | Same sign in all hourly samples |
| Mars | Leo | Same sign in all hourly samples |
| Jupiter | Virgo | Same sign in all hourly samples |
| Saturn | Cancer | Same sign in all hourly samples |
Geocentric tropical positions. A sign shown twice cannot be narrowed down without a documented birth time and historical UTC offset.
Try this reading exercise
If the source supplies Copenhagen but no hour, which sign ranges are still meaningful? Why would placing a planet in a house add a fact the source never supplied?
Birth-date source
Nobel Prize: Niels Bohr facts ↗ documents the date and place above.
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