Rocznik astronomiczny obserwatorium Krakowskiego. Dodatek miedzynarodowy
This card contains tables with dates according to the ..new astro nomical eraaquot; ( n. e. a.) and to the Julian Date (J. D.) for the hour Oa#39;1 universal time of each day of the year. ... The Julian Dates introduced by Scaliger were used in the course of centuries only as ordinal numbers of calendar ... The new astronomical era being connected univalently and exactly with universal time is free of that deficiency.
| Title | : | Rocznik astronomiczny obserwatorium Krakowskiego. Dodatek miedzynarodowy |
| Author | : | |
| Publisher | : | - 1955 |
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