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| Query : 2017MNRAS.470.1436G |
2017MNRAS.470.1436G - Mon. Not. R. Astron. Soc., 470, 1436-1441 (2017/September-2)
Constraining ΔT from Babylonian lunar appulse and occultation observations.
GONZALEZ G.
Abstract (from CDS):
We examine in detail 15 Babylonian observations of lunar appulses and occultations made between 80 and 419 BC for the purpose of setting useful limits on Earth's clock error, as quantified by ΔT, the difference between Terrestrial time and Universal time. Our results are generally in agreement with reconstructions of ΔT using untimed solar eclipse observations from the same period. We suggest a revised version of the simple quadratic fit to ΔT in light of the new results.
Abstract Copyright: © 2017 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society
Journal keyword(s): occultations - time - Earth - Moon - Moon
Simbad objects: 14
| Number of rows : 14 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * bet Per | SB* | 03 08 10.1324535 | +40 57 20.328013 | 1.70 | 2.07 | 2.12 | 2.08 | 2.11 | B8V | 1265 | 1 |
| 2 | * alf Tau | LP? | 04 35 55.23907 | +16 30 33.4885 | 4.32 | 2.40 | 0.86 | -0.37 | -1.31 | K5+III | 1298 | 2 |
| 3 | * tet Cnc | PM* | 08 31 35.7299602200 | +18 05 39.905422656 | 6.908 | 5.337 | K5III | 70 | 0 | |||
| 4 | * eta Cnc | PM* | 08 32 42.4962025704 | +20 26 28.184067672 | 6.581 | 5.325 | K3III | 97 | 0 | |||
| 5 | * gam Cnc | PM* | 08 43 17.1471415051 | +21 28 06.595679965 | 4.670 | 4.652 | 4.64 | A1Va | 121 | 0 | ||
| 6 | * del Cnc | ** | 08 44 41.0991810454 | +18 09 15.509048595 | 6.01 | 5.02 | 3.94 | 3.16 | 2.62 | K0+IIIb | 212 | 0 |
| 7 | * eta Leo | sg* | 10 07 19.9523915176 | +16 45 45.587968398 | 3.17 | 3.39 | 3.41 | 3.32 | 3.35 | A0Ib | 351 | 0 |
| 8 | * alf Leo | PM* | 10 08 22.31099 | +11 58 01.9516 | 0.88 | 1.24 | 1.40 | 1.37 | 1.47 | B8IVn | 891 | 1 |
| 9 | * zet Leo | V* | 10 16 41.4151642435 | +23 25 02.341160368 | 3.89 | 3.72 | 3.41 | 3.09 | 2.91 | F0IIIa | 235 | 0 |
| 10 | * gam Leo | ** | 10 19 58.35056 | +19 50 29.3468 | K1-III+G7IIIb | 94 | 0 | |||||
| 11 | * rho Leo | s*b | 10 32 48.6703908997 | +09 18 23.705339948 | 2.780 | 3.720 | 3.870 | 3.90 | 4.06 | B1Iab | 550 | 0 |
| 12 | * tet Leo | PM* | 11 14 14.4056705348 | +15 25 46.455911128 | 3.40 | 3.33 | 3.35 | 3.32 | 3.34 | A2IV | 353 | 0 |
| 13 | * alf Sco | s*r | 16 29 24.45970 | -26 25 55.2094 | 4.08 | 2.75 | 0.91 | -0.64 | -1.87 | M1.5Iab+B2Vn | 786 | 0 |
| 14 | * tet Oph | bC* | 17 22 00.5793468 | -24 59 58.366974 | 2.18 | 3.03 | 3.26 | 3.38 | 3.58 | OB | 350 | 0 |
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