Eclipse cycle
Eclipse cycles

Eclipse cycle

Section Title: Eclipse cycles
Table Section Text: None

Cycle	Formula	Solar days	Synodic months	Draconic months	Anomalistic months	Eclipse years	Tropical years

fortnight	19i − ​30 1⁄2s	14.77	0.5	0.543	0.536	0.043	0.040

synodic month	38i − 61s	29.53	1	1.085	1.072	0.085	0.081

pentalunex	53s − 33i	147.65	5	5.426	5.359	0.426	0.404

semester	5i − 8s	177.18	6	6.511	6.430	0.511	0.485

lunar year	10i − 16s	354.37	12	13.022	12.861	1.022	0.970

octon	2i − 3s	1387.94	47	51.004	50.371	4.004	3.800

tzolkinex	2s − i	2598.69	88	95.497	94.311	7.497	7.115

sar (half saros)	​1⁄2s	3292.66	111.5	120.999	119.496	9.499	9.015

tritos	i − s	3986.63	135	146.501	144.681	11.501	10.915

saros (s)	s	6585.32	223	241.999	238.992	18.999	18.030

Metonic cycle	10i − 15s	6939.69	235	255.021	251.853	20.021	19.000

inex (i)	i	10,571.95	358	388.500	383.674	30.500	28.945

exeligmos	3s	19,755.96	669	725.996	716.976	56.996	54.090

Callippic cycle	40i − 60s	27,758.75	940	1020.084	1007.411	80.084	76.001

triad	3i	31,715.85	1074	1165.500	1151.021	91.500	86.835

Hipparchic cycle	25i − 21s	126,007.02	4267	4630.531	4573.002	363.531	344.996

Babylonian	14i + 2s	161,177.95	5458	5922.999	5849.413	464.999	441.291

tetradia (Meeus III)	22i − 4s	206,241.63	6984	7579.008	7484.849	595.008	564.671

tetradia (Meeus [I])	19i + 2s	214,037.70	7248	7865.500	7767.781	617.500	586.016

Sentence(s)

Metonic Eclipse cycle consists of 235 synodic months.
The Metonic cycle consists of (235 synodic months).

final_sentence: Metonic Eclipse cycle consists of 235 synodic months.
final_sentence: The Metonic cycle consists of (235 synodic months).