Formule Flashcards

1
Q

Legge di grav universale

A

F = G mM/d²

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2
Q

3 legge keplero

A

a³/T² = G(M+m)/4π²

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3
Q

Prima velocità cosmica circolare

A

v = √(MG/R)

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4
Q

Seconda velocità cosmica

A

v = √(2GM/R)

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5
Q

Lunghezza d’onda in funzione della frequenza

A

λ = c/f

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6
Q

Legge planck

A

E = hf

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7
Q

Legge dello spostamento di Wien

A

λmax = b/T

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8
Q

Flusso in funz della luminosità

A

F = L/4πd²

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9
Q

Legge di Stefan Boltzmann

A

L = 4πR²σT⁴

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10
Q

Legge di Pogson

A

m1 - m2 = -2,5log(F1/F2)

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11
Q

Magnitudine assoluta

A

M - m = 5 - 5log(d)

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12
Q

Magnitudine sistema multiplo

A

m = -2,5(10^(-0,4m1) + 10^(-0,4m2) + … + + 10^(-0,4mn))

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13
Q

Redshift

A

z = (λobs - λrest) / λrest

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14
Q

Legge di Hubble

A

v = H0d

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15
Q

Potere risolutivo
Minimo pot. R.?

A

θ” = 1,22 • λ/D • 206265

1”

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16
Q

Ingrandimento

A

I = F/f

17
Q

Fov telescopio

A

Fovt = Fovoc/I

18
Q

Pupilla d’uscita

A

p=D/I

p>7mm

19
Q

Fps

A

Fps= 206265/F

20
Q

Magnitudine integrata

A

mint= msup - 2,5logA

21
Q

Parallasse e distanza

A

π(“)=1/d(pc)

22
Q

Stelle occidue

A

90 - φ > δ > φ - 90

23
Q

Circumpolari

A

δ > 90 - φ

24
Q

Αnticircumpolari

A

δ < φ - 90

25
Q

Altezza equatore celeste

A

heq= 90- φ

26
Q

Altezza massima di una stella

A

hmax = 90 ± ( φ-δ)
- δ<φ
+ δ>φ

27
Q

Ascensione retta e tempo

A

T=. H+α

28
Q

Periodo Sinldico

A

Esterno 1/S = 1/T-1/P
Interno 1/S = 1/P-1/T

29
Q

Velocità prbitale perielio e afelio

A

Vp= √(GM/a)[(1+e)/(1-e)]

Va= √(GM/a)[(1-e)/(1+e)]