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Whitakers 2016 cover
Complete astronomical data, planetary and night sky information for the year 2019, plus information on Seasons, Time, Earth and Terrestrial Magnetism
Print publication date: Jan, 2019
Word count: 61,866
Astronomy 2019
British Summer Time is the legal time for general purposes...
Word count: 98
Astronomy 2019
The seasons are defined astronomically as follows:
Word count: 321
Astronomy 2019
In the present epoch, transits of Mercury occur in May or November. November transits are approximately twice as frequent as May transits.
Word count: 273
Astronomy 2019
During 2019 there will be 5 eclipses, 3 of the Sun and 2 of the Moon.
Word count: 247
Astronomy 2019
The length of a sidereal day in mean time is 23h 56m 04s.09.
Word count: 516
Astronomy 2019
From the earliest ages, the natural division of time into recurring periods of day and night has provided the practical time-scale for the everyday...
Word count: 3,316
Astronomy 2019
The refraction table is in the form of a critical table...
Subjects: mean refraction
Word count: 130
Astronomy 2019
The shape of the Earth is that of an oblate spheroid or solid of revolution whose meridian sections are ellipses not differing much from circles...
Word count: 382
Astronomy 2019
The Earth’s main magnetic field corresponds approximately to that of a very strong small bar magnet near the centre of the Earth, but with...
Word count: 1,076
Astronomy 2019
Explanation of the astronomical data and glossary of terms for the monthly data tables.
Word count: 3,247
Astronomy 2019
JanuaryJanuary 2019February
Complete astronomical data, planetary and night sky information for January.
Word count: 4,508
Astronomy 2019
FebruaryFebruary 2019March
Complete astronomical data, planetary and night sky information for February.
Word count: 4,151
Astronomy 2019
MarchMarch 2019April
Complete astronomical data, planetary and night sky information for March.
Word count: 4,430
Astronomy 2019
AprilApril 2019May
Complete astronomical data, planetary and night sky information for April.
Word count: 4,238
Astronomy 2019
MayMay 2019June
Complete astronomical data, planetary and night sky information for May.
Word count: 4,423
Astronomy 2019
JulyJuly 2019August
Complete astronomical data, planetary and night sky information for July.
Word count: 4,389
Astronomy 2019
AugustAugust 2019September
Complete astronomical data, planetary and night sky information for August.
Word count: 4,400
Astronomy 2019
SeptemberSeptember 2019October
Complete astronomical data, planetary and night sky information for September.
Word count: 4,205
Astronomy 2019
OctoberOctober 2019November
Complete astronomical data, planetary and night sky information for October.
Word count: 4,415
Astronomy 2019
NovemberNovember 2019December
Complete astronomical data, planetary and night sky information for November.
Word count: 4,177
Astronomy 2019
DecemberDecember 2019January
Complete astronomical data, planetary and night sky information for December.
Word count: 4,423