1. The 5th hour can probably be regarded as beginning with Zaurak (the Boat) and in day number 468 (= 4 / 24 * 360 + 408):
Day number 467 is the result of counting Zaurak to be 4 minutes earlier than 04h, but I prefer to have the 'Boat' at the beginning of the 5th hour.
Next we will consider Beid and Theemin, two more stars in Eridanus:
Measured in right ascension the distance from Beid (ο¹) to Theemin (υ²) is not far, 25m = 6¼ of a day. But if we follow the River the distance is great. The configuration of Eridanus makes it doubtful to measure its time flow by right ascension. A somewhat better measure would be the declination. From Beid to Theemin the distance will then be 30° 40′ - 06° 58′ = 1840′ - 418′ = 1422′ = 23° 42′. But even so we can see that the great bend towards Cetus will not be properly measured. The flow of the river Eridanus seems to be outside the ordinary flow of time. By the way, 23° 42′ happens to be quite close to the current axial tilt of the Earth: |