VENUS
2922 days
What was one of the bases of the very accurate calendar of the North American Aztec Indians ?
Could you believe the it is the position of Venus.
Looking at the chart below can you see the relationship between the positions of Venus and Earth every 8 years
8 Years on Earth is 13 years on Venus BOTH are 2922 day with an accuracy of 22.68 seconds/year, is that amazing or what ?
The rotation of Earth about the sun 365.242199 days, and that of venus 224.764564 days.
- 365.242199 × 8= 2921.937592 days
- 224.764564 × 13= 2921.939332 days
- a difference of only .001740195 days or
- 2 minutes 30.342048 seconds
During a given 8 year period, for the precise alignment to occur. But for visibility, it matters, no more, than it occurs on the night, or series of nights, that are easily reconized.
Earth Date
Julian Date |
16 Jan 2000 |
16 Jan 2008 |
16 Jan 2016 |
17 Jan 2112 |
| 2451560 |
2454482 |
2457404 |
2492468 |
| Right
ascension
|
17h 16m 56.26s | 17h 19m 26.68s | 17h 21m 55.40s | 17h 59m 15.64s |
|---|
|
Declination
| -21° 33' 42.4"
| -21° 39' 24.7"
| -21° 44' 26.6"
| -22° 37' 55.7" |
|---|
|
Altitude
| 34° 14' 9"
| 34° 9' 45"
| 34° 5' 43"
| 32° 56' 26" |
|---|
|
Azimuth
| 150° 55' 57" | 150° 26' 52" | 149° 57' 39" | n/a |
|---|
| Rise | 4h 26m 53s | 4h 29m 26s | 4h 31m 57s | 5h 4m 56s |
|---|
|
Transit
| 9h 28m 4s | 9h 30m 18s | 9h 32m 33s | 10h 2m 36s |
| Set | 14h 29m 4s | 14h 31m 0s | 14h 32m 59s | 15h 0m 11s |
|---|