2019MNRAS.482.1452G

Query : 2019MNRAS.482.1452G

2019MNRAS.482.1452G - Mon. Not. R. Astron. Soc., 482, 1452-1455 (2019/January-2)

New constraints on ΔT prior to the second century AD.

GONZALEZ G.

Abstract (from CDS):

Ancient lunar appulse and occultation observations are analysed to derive new constraints on the difference between Terrestrial Time and Universal Time (ΔT). The new estimates are combined with literature values to produce an updated equation for calculating ΔT prior to the second century AD.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): occultations - time

Simbad objects: 6

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Number of rows : 6
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 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 * eta Tau Be* 03 47 29.0765529 +24 06 18.488347 2.44 2.78 2.87 2.84 2.88 B7III 557 1
3 * 28 Tau Be* 03 49 11.2165977912 +24 08 12.156712008 4.73 5.01 5.09   5.08 B8Vne 494 0
4 * alf Vir bC* 13 25 11.57937 -11 09 40.7501 -0.20 0.74 0.97 1.06 1.30 B1V 877 1
5 * pi. Sco SB* 15 58 51.1132378 -26 06 50.788602 1.82 2.71 2.91 3.00 3.20 B1V+B2:V: 415 0
6 * bet Sco ** 16 05 26.23 -19 48 19.4 2.00 2.43 2.50     B1V+B2V 40 0

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