solar eclipse: occur on moon day

from Quasimodo
0.2 0.4 0.6 0.8 Plausible Typical Remarkable Salient

Related concepts

Parents thing
Weight: 0.59
, event
Weight: 0.59
, eclipse
Weight: 0.55
, moon
Weight: 0.52
Siblings new moon
Weight: 0.57
, solar wind
Weight: 0.35
, aurora
Weight: 0.32
, sun
Weight: 0.32
, windmill
Weight: 0.32

Related properties

Property Similarity
occur on moon day 1.00
occur on new moon day 0.98
occur on moon days 0.98
occur at moon 0.97
occur on new moon days 0.96
occur at new moon 0.96
happen on moon 0.94
occur at full moon 0.94
happen at moon 0.94
happen on new moon 0.92

Priors about this statement

Cues

0.2 0.4 0.6 0.8 Joint Necessity Sufficiency Implication Entailment Contradiction Entropy

Evidence

0.2 0.4 0.6 0.8 Plausible Typical Remarkable Salient

Clauses

Plausibility inference from child typicality

0.59
Rule weight: 0.66
Evidence weight: 0.90
Similarity weight: 0.98
Evidence: 0.81
Plausible(eclipse, occur on new moon day)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.53
Rule weight: 0.66
Evidence weight: 0.86
Similarity weight: 0.92
Evidence: 0.73
Plausible(eclipse, happen on new moon)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.52
Rule weight: 0.66
Evidence weight: 0.79
Similarity weight: 1.00
Evidence: 0.58
Plausible(eclipse, occur on moon day)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.50
Rule weight: 0.66
Evidence weight: 0.81
Similarity weight: 0.94
Evidence: 0.62
Plausible(eclipse, occur at full moon)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.48
Rule weight: 0.66
Evidence weight: 0.76
Similarity weight: 0.96
Evidence: 0.52
Plausible(eclipse, occur at new moon)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.46
Rule weight: 0.66
Evidence weight: 0.72
Similarity weight: 0.96
Evidence: 0.45
Plausible(eclipse, occur on new moon days)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.44
Rule weight: 0.66
Evidence weight: 0.68
Similarity weight: 0.97
Evidence: 0.37
Plausible(eclipse, occur at moon)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.42
Rule weight: 0.66
Evidence weight: 0.68
Similarity weight: 0.94
Evidence: 0.36
Plausible(eclipse, happen on moon)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
0.35
Rule weight: 0.66
Evidence weight: 0.57
Similarity weight: 0.94
Evidence: 0.14
Plausible(eclipse, happen at moon)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)

Plausibility inheritance from parent to child

0.08
Rule weight: 0.09
Evidence weight: 0.90
Similarity weight: 0.94
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.14
¬ Plausible(eclipse, happen at moon)
0.07
Rule weight: 0.09
Evidence weight: 0.72
Similarity weight: 0.97
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.37
¬ Plausible(eclipse, occur at moon)
0.06
Rule weight: 0.09
Evidence weight: 0.73
Similarity weight: 0.94
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.36
¬ Plausible(eclipse, happen on moon)
0.06
Rule weight: 0.09
Evidence weight: 0.66
Similarity weight: 0.96
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.45
¬ Plausible(eclipse, occur on new moon days)
0.05
Rule weight: 0.09
Evidence weight: 0.61
Similarity weight: 0.96
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.52
¬ Plausible(eclipse, occur at new moon)
0.05
Rule weight: 0.09
Evidence weight: 0.56
Similarity weight: 1.00
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.58
¬ Plausible(eclipse, occur on moon day)
0.05
Rule weight: 0.09
Evidence weight: 0.53
Similarity weight: 0.94
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.62
¬ Plausible(eclipse, occur at full moon)
0.04
Rule weight: 0.09
Evidence weight: 0.45
Similarity weight: 0.92
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.73
¬ Plausible(eclipse, happen on new moon)
0.04
Rule weight: 0.09
Evidence weight: 0.39
Similarity weight: 0.98
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.81
¬ Plausible(eclipse, occur on new moon day)

Remarkability exclusitivity betweem a parent and a child

0.53
Rule weight: 0.58
Evidence weight: 0.96
Similarity weight: 0.96
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.22
¬ Remarkable(eclipse, occur on new moon days)
0.53
Rule weight: 0.58
Evidence weight: 0.92
Similarity weight: 1.00
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.50
¬ Remarkable(eclipse, occur on moon day)
0.53
Rule weight: 0.58
Evidence weight: 0.98
Similarity weight: 0.94
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.14
¬ Remarkable(eclipse, happen at moon)
0.53
Rule weight: 0.58
Evidence weight: 0.94
Similarity weight: 0.97
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.35
¬ Remarkable(eclipse, occur at moon)
0.52
Rule weight: 0.58
Evidence weight: 0.95
Similarity weight: 0.96
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.30
¬ Remarkable(eclipse, occur at new moon)
0.52
Rule weight: 0.58
Evidence weight: 0.92
Similarity weight: 0.98
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.46
¬ Remarkable(eclipse, occur on new moon day)
0.52
Rule weight: 0.58
Evidence weight: 0.96
Similarity weight: 0.94
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.25
¬ Remarkable(eclipse, happen on moon)
0.50
Rule weight: 0.58
Evidence weight: 0.94
Similarity weight: 0.92
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.35
¬ Remarkable(eclipse, happen on new moon)
0.48
Rule weight: 0.58
Evidence weight: 0.89
Similarity weight: 0.94
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.69
¬ Remarkable(eclipse, occur at full moon)

Remarkability from parent implausibility

0.40
Rule weight: 0.42
Evidence weight: 0.96
Similarity weight: 0.98
Evidence: 0.81
Plausible(eclipse, occur on new moon day)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.38
Rule weight: 0.42
Evidence weight: 0.91
Similarity weight: 1.00
Evidence: 0.58
Plausible(eclipse, occur on moon day)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.36
Rule weight: 0.42
Evidence weight: 0.94
Similarity weight: 0.92
Evidence: 0.73
Plausible(eclipse, happen on new moon)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.36
Rule weight: 0.42
Evidence weight: 0.92
Similarity weight: 0.94
Evidence: 0.62
Plausible(eclipse, occur at full moon)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.36
Rule weight: 0.42
Evidence weight: 0.90
Similarity weight: 0.96
Evidence: 0.52
Plausible(eclipse, occur at new moon)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.36
Rule weight: 0.42
Evidence weight: 0.89
Similarity weight: 0.96
Evidence: 0.45
Plausible(eclipse, occur on new moon days)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.35
Rule weight: 0.42
Evidence weight: 0.87
Similarity weight: 0.97
Evidence: 0.37
Plausible(eclipse, occur at moon)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.34
Rule weight: 0.42
Evidence weight: 0.87
Similarity weight: 0.94
Evidence: 0.36
Plausible(eclipse, happen on moon)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)
0.32
Rule weight: 0.42
Evidence weight: 0.83
Similarity weight: 0.94
Evidence: 0.14
Plausible(eclipse, happen at moon)
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur on moon day)

Salient implies Plausible

0.24
Rule weight: 0.28
Evidence weight: 0.86
Similarity weight: 1.00
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.19
¬ Salient(solar eclipse, occur on moon day)

Similarity expansion

0.79
Rule weight: 0.85
Evidence weight: 0.95
Similarity weight: 0.98
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.07
¬ Plausible(solar eclipse, occur on moon days)
0.79
Rule weight: 0.85
Evidence weight: 0.94
Similarity weight: 0.98
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.07
¬ Salient(solar eclipse, occur on moon days)
0.78
Rule weight: 0.85
Evidence weight: 0.94
Similarity weight: 0.98
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.07
¬ Remarkable(solar eclipse, occur on moon days)
0.78
Rule weight: 0.85
Evidence weight: 0.94
Similarity weight: 0.97
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.08
¬ Plausible(solar eclipse, occur at moon)
0.77
Rule weight: 0.85
Evidence weight: 0.96
Similarity weight: 0.94
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.05
¬ Plausible(solar eclipse, happen on moon)
0.77
Rule weight: 0.85
Evidence weight: 0.96
Similarity weight: 0.94
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.05
¬ Plausible(solar eclipse, happen at moon)
0.77
Rule weight: 0.85
Evidence weight: 0.96
Similarity weight: 0.94
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.05
¬ Salient(solar eclipse, happen on moon)
0.77
Rule weight: 0.85
Evidence weight: 0.96
Similarity weight: 0.94
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.05
¬ Salient(solar eclipse, happen at moon)
0.76
Rule weight: 0.85
Evidence weight: 0.95
Similarity weight: 0.94
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.06
¬ Remarkable(solar eclipse, happen on moon)
0.76
Rule weight: 0.85
Evidence weight: 0.95
Similarity weight: 0.94
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.06
¬ Remarkable(solar eclipse, happen at moon)
0.76
Rule weight: 0.85
Evidence weight: 0.91
Similarity weight: 0.97
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.11
¬ Salient(solar eclipse, occur at moon)
0.73
Rule weight: 0.85
Evidence weight: 0.88
Similarity weight: 0.97
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.14
¬ Remarkable(solar eclipse, occur at moon)
0.73
Rule weight: 0.85
Evidence weight: 0.88
Similarity weight: 0.97
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Typical(solar eclipse, occur at moon)
0.72
Rule weight: 0.85
Evidence weight: 0.86
Similarity weight: 0.98
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.28
¬ Typical(solar eclipse, occur on moon days)
0.71
Rule weight: 0.85
Evidence weight: 0.88
Similarity weight: 0.94
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.23
¬ Typical(solar eclipse, happen on moon)
0.71
Rule weight: 0.85
Evidence weight: 0.89
Similarity weight: 0.94
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.23
¬ Typical(solar eclipse, happen at moon)
0.70
Rule weight: 0.85
Evidence weight: 0.86
Similarity weight: 0.96
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.17
¬ Remarkable(solar eclipse, occur on new moon days)
0.68
Rule weight: 0.85
Evidence weight: 0.83
Similarity weight: 0.96
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.21
¬ Remarkable(solar eclipse, occur at new moon)
0.67
Rule weight: 0.85
Evidence weight: 0.82
Similarity weight: 0.96
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.22
¬ Salient(solar eclipse, occur on new moon days)
0.67
Rule weight: 0.85
Evidence weight: 0.86
Similarity weight: 0.92
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.17
¬ Remarkable(solar eclipse, happen on new moon)
0.66
Rule weight: 0.85
Evidence weight: 0.81
Similarity weight: 0.96
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.23
¬ Salient(solar eclipse, occur at new moon)
0.66
Rule weight: 0.85
Evidence weight: 0.82
Similarity weight: 0.94
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.22
¬ Salient(solar eclipse, occur at full moon)
0.65
Rule weight: 0.85
Evidence weight: 0.81
Similarity weight: 0.94
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.24
¬ Plausible(solar eclipse, occur at full moon)
0.65
Rule weight: 0.85
Evidence weight: 0.83
Similarity weight: 0.92
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.21
¬ Salient(solar eclipse, happen on new moon)
0.64
Rule weight: 0.85
Evidence weight: 0.80
Similarity weight: 0.94
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.41
¬ Typical(solar eclipse, occur at full moon)
0.63
Rule weight: 0.85
Evidence weight: 0.79
Similarity weight: 0.94
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.26
¬ Remarkable(solar eclipse, occur at full moon)
0.62
Rule weight: 0.85
Evidence weight: 0.76
Similarity weight: 0.96
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.32
¬ Plausible(solar eclipse, occur at new moon)
0.62
Rule weight: 0.85
Evidence weight: 0.75
Similarity weight: 0.96
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.33
¬ Plausible(solar eclipse, occur on new moon days)
0.60
Rule weight: 0.85
Evidence weight: 0.77
Similarity weight: 0.92
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.30
¬ Plausible(solar eclipse, happen on new moon)
0.60
Rule weight: 0.85
Evidence weight: 0.73
Similarity weight: 0.96
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.54
¬ Typical(solar eclipse, occur at new moon)
0.58
Rule weight: 0.85
Evidence weight: 0.71
Similarity weight: 0.96
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.59
¬ Typical(solar eclipse, occur on new moon days)
0.57
Rule weight: 0.85
Evidence weight: 0.68
Similarity weight: 0.98
Evidence: 0.16
Remarkable(solar eclipse, occur on moon day)
Evidence: 0.38
¬ Remarkable(solar eclipse, occur on new moon day)
0.57
Rule weight: 0.85
Evidence weight: 0.72
Similarity weight: 0.92
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.55
¬ Typical(solar eclipse, happen on new moon)
0.45
Rule weight: 0.85
Evidence weight: 0.54
Similarity weight: 0.98
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.93
¬ Typical(solar eclipse, occur on new moon day)
0.32
Rule weight: 0.85
Evidence weight: 0.38
Similarity weight: 0.98
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.81
¬ Plausible(solar eclipse, occur on new moon day)
0.31
Rule weight: 0.85
Evidence weight: 0.37
Similarity weight: 0.98
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.78
¬ Salient(solar eclipse, occur on new moon day)

Typical and Remarkable implies Salient

0.13
Rule weight: 0.14
Evidence weight: 0.93
Similarity weight: 1.00
Evidence: 0.19
Salient(solar eclipse, occur on moon day)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)

Typical implies Plausible

0.30
Rule weight: 0.48
Evidence weight: 0.62
Similarity weight: 1.00
Evidence: 0.24
Plausible(solar eclipse, occur on moon day)
Evidence: 0.50
¬ Typical(solar eclipse, occur on moon day)

Typicality and Rermarkability incompatibility between a parent and a child

0.45
Rule weight: 0.51
Evidence weight: 0.92
Similarity weight: 0.97
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.49
¬ Typical(eclipse, occur at moon)
0.45
Rule weight: 0.51
Evidence weight: 0.89
Similarity weight: 1.00
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.67
¬ Typical(eclipse, occur on moon day)
0.45
Rule weight: 0.51
Evidence weight: 0.93
Similarity weight: 0.94
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.41
¬ Typical(eclipse, happen at moon)
0.43
Rule weight: 0.51
Evidence weight: 0.91
Similarity weight: 0.94
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.57
¬ Typical(eclipse, happen on moon)
0.43
Rule weight: 0.51
Evidence weight: 0.89
Similarity weight: 0.96
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.70
¬ Typical(eclipse, occur on new moon days)
0.43
Rule weight: 0.51
Evidence weight: 0.88
Similarity weight: 0.96
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.71
¬ Typical(eclipse, occur at new moon)
0.43
Rule weight: 0.51
Evidence weight: 0.90
Similarity weight: 0.94
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.63
¬ Typical(eclipse, occur at full moon)
0.43
Rule weight: 0.51
Evidence weight: 0.85
Similarity weight: 0.98
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.90
¬ Typical(eclipse, occur on new moon day)
0.40
Rule weight: 0.51
Evidence weight: 0.86
Similarity weight: 0.92
Evidence: 0.16
¬ Remarkable(solar eclipse, occur on moon day)
Evidence: 0.88
¬ Typical(eclipse, happen on new moon)

Typicality inheritance from parent to child

0.36
Rule weight: 0.48
Evidence weight: 0.80
Similarity weight: 0.94
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.41
¬ Typical(eclipse, happen at moon)
0.35
Rule weight: 0.48
Evidence weight: 0.75
Similarity weight: 0.97
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.49
¬ Typical(eclipse, occur at moon)
0.33
Rule weight: 0.48
Evidence weight: 0.72
Similarity weight: 0.94
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.57
¬ Typical(eclipse, happen on moon)
0.32
Rule weight: 0.48
Evidence weight: 0.67
Similarity weight: 1.00
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.67
¬ Typical(eclipse, occur on moon day)
0.31
Rule weight: 0.48
Evidence weight: 0.69
Similarity weight: 0.94
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.63
¬ Typical(eclipse, occur at full moon)
0.30
Rule weight: 0.48
Evidence weight: 0.65
Similarity weight: 0.96
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.70
¬ Typical(eclipse, occur on new moon days)
0.30
Rule weight: 0.48
Evidence weight: 0.64
Similarity weight: 0.96
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.71
¬ Typical(eclipse, occur at new moon)
0.26
Rule weight: 0.48
Evidence weight: 0.55
Similarity weight: 0.98
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.90
¬ Typical(eclipse, occur on new moon day)
0.25
Rule weight: 0.48
Evidence weight: 0.56
Similarity weight: 0.92
Evidence: 0.50
Typical(solar eclipse, occur on moon day)
Evidence: 0.88
¬ Typical(eclipse, happen on new moon)