Esempio n. 1
0
func ExamplePhaseAngleEq2() {
	i := moonillum.PhaseAngleEq2(
		unit.RAFromDeg(134.6885),
		unit.AngleFromDeg(13.7684),
		unit.RAFromDeg(20.6579),
		unit.AngleFromDeg(8.6964))
	k := base.Illuminated(i)
	fmt.Printf("k = %.4f\n", k)
	// Output:
	// k = 0.6775
}
Esempio n. 2
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func ExampleLimb() {
	// Example 48.a, p. 347.
	χ := base.Limb(
		unit.RAFromDeg(134.6885),
		unit.AngleFromDeg(13.7684),
		unit.RAFromDeg(20.6579),
		unit.AngleFromDeg(8.6964))
	fmt.Printf("χ = %.1f\n", χ.Deg())
	// Output:
	// χ = 285.0
}
Esempio n. 3
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func ExamplePhaseAngleEq() {
	i := moonillum.PhaseAngleEq(
		unit.RAFromDeg(134.6885),
		unit.AngleFromDeg(13.7684),
		368410,
		unit.RAFromDeg(20.6579),
		unit.AngleFromDeg(8.6964),
		149971520)
	fmt.Printf("i = %.4f\n", i.Deg())
	// Output:
	// i = 69.0756
}
Esempio n. 4
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func ExampleTopocentric2() {
	// Example 40.a, p. 280
	Δα, Δδ := parallax.Topocentric2(
		unit.RAFromDeg(339.530208),
		unit.AngleFromDeg(-15.771083),
		.37276, .546861, .836339,
		unit.Angle(unit.NewHourAngle(' ', 7, 47, 27)),
		julian.CalendarGregorianToJD(2003, 8, 28+
			unit.NewTime(' ', 3, 17, 0).Day()))
	fmt.Printf("Δα = %.2s (sec of RA)\n", sexa.FmtHourAngle(Δα))
	fmt.Printf("Δδ = %.1s (sec of Dec)\n", sexa.FmtAngle(Δδ))
	// Output:
	// Δα = 1.29ˢ (sec of RA)
	// Δδ = -14.1″ (sec of Dec)
}
Esempio n. 5
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func ExampleTopocentric() {
	// Example 40.a, p. 280
	α, δ := parallax.Topocentric(
		unit.RAFromDeg(339.530208),
		unit.AngleFromDeg(-15.771083),
		.37276, .546861, .836339,
		unit.Angle(unit.NewHourAngle(' ', 7, 47, 27)),
		julian.CalendarGregorianToJD(2003, 8, 28+
			unit.NewTime(' ', 3, 17, 0).Day()))
	fmt.Printf("α' = %.2d\n", sexa.FmtRA(α))
	fmt.Printf("δ' = %.1d\n", sexa.FmtAngle(δ))
	// Output:
	// α' = 22ʰ38ᵐ8ˢ.54
	// δ' = -15°46′30″.0
}
Esempio n. 6
0
func ExampleTopocentric3() {
	// same test case as example 40.a, p. 280
	α := unit.RAFromDeg(339.530208)
	δ := unit.AngleFromDeg(-15.771083)
	Δ := .37276
	ρsφʹ := .546861
	ρcφʹ := .836339
	L := unit.Angle(unit.NewHourAngle(' ', 7, 47, 27))
	jde := julian.CalendarGregorianToJD(2003, 8, 28+
		unit.NewTime(' ', 3, 17, 0).Day())
	Hʹ, δʹ := parallax.Topocentric3(α, δ, Δ, ρsφʹ, ρcφʹ, L, jde)
	fmt.Printf("Hʹ = %.2d\n", sexa.FmtHourAngle(Hʹ))
	θ0 := sidereal.Apparent(jde)
	αʹ := unit.RAFromRad(θ0.Rad() - L.Rad() - Hʹ.Rad())
	// same result as example 40.a, p. 280
	fmt.Printf("αʹ = %.2d\n", sexa.FmtRA(αʹ))
	fmt.Printf("δʹ = %.1d\n", sexa.FmtAngle(δʹ))
	// Output:
	// Hʹ = -4ʰ44ᵐ50ˢ.28
	// αʹ = 22ʰ38ᵐ8ˢ.54
	// δʹ = -15°46′30″.0
}