Oort constants
The Oort constants (discovered by Jan Oort) and are empirically derived parameters that characterize the local rotational properties of our galaxy, the Milky Way, in the following manner: where and are the rotational velocity and distance to the Galactic center, respectively, measured at the position of the Sun, and v and r are the velocities and distances at other positions in our part of the galaxy. As derived below, A and B depend only on the motions and positions of stars in the solar neighborhood. As of 2018, the most accurate values of these constants are = 15.3 ± 0.4 km s−1 kpc−1, = -11.9 ± 0.4 km s−1 kpc−1. From the Oort constants, it is possible to determine the orbital properties of the Sun, such as the orbital velocity and period, and infer local properties of the Galactic
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Oort constants
The Oort constants (discovered by Jan Oort) and are empirically derived parameters that characterize the local rotational properties of our galaxy, the Milky Way, in the following manner: where and are the rotational velocity and distance to the Galactic center, respectively, measured at the position of the Sun, and v and r are the velocities and distances at other positions in our part of the galaxy. As derived below, A and B depend only on the motions and positions of stars in the solar neighborhood. As of 2018, the most accurate values of these constants are = 15.3 ± 0.4 km s−1 kpc−1, = -11.9 ± 0.4 km s−1 kpc−1. From the Oort constants, it is possible to determine the orbital properties of the Sun, such as the orbital velocity and period, and infer local properties of the Galactic
has abstract
De oortconstanten zijn kengeta ...... rden omdat ze niet meeroteren.
@nl
Die oortschen Rotationsformeln ...... er viele Sterne (Abbildung 2).
@de
Le costanti di Oort sono indic ...... e la velocità del moto solare.
@it
Les constantes d'Oort ou param ...... proches par rapport au Soleil.
@fr
Oortovy konstanty se označují ...... ro sluneční okolí jsou hodnoty
@cs
Stała Oorta – stała występując ...... osi gdzie [kpc] to kiloparsek.
@pl
The Oort constants (discovered ...... dius from the Galactic center.
@en
Постоянные Оорта — Две эмпирич ...... . Их приблизительные значения:
@ru
오르트 상수(Oort constants) 와 는 우리 ...... -12.37 ± 0.64 km s−1 kpc−1 이다.
@ko
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De oortconstanten zijn kengeta ...... rden omdat ze niet meeroteren.
@nl
Die oortschen Rotationsformeln ...... digkeiten und Eigenbewegungen.
@de
Le costanti di Oort sono indic ...... galatticoSi noti che: e quindi
@it
Les constantes d'Oort ou param ...... r du centre de la Voie lactée.
@fr
Oortovy konstanty se označují ...... ro sluneční okolí jsou hodnoty
@cs
Stała Oorta – stała występując ...... aczana doświadczalnie i wynosi
@pl
The Oort constants (discovered ...... cal properties of the Galactic
@en
Постоянные Оорта — Две эмпирич ...... асстояние до центра Галактики.
@ru
오르트 상수(Oort constants) 와 는 우리 ...... -12.37 ± 0.64 km s−1 kpc−1 이다.
@ko
label
Constantes d'Oort
@fr
Costante di Oort
@it
Oort constants
@en
Oortconstanten
@nl
Oortovy konstanty
@cs
Oortsche Rotationsformeln
@de
Stała Oorta
@pl
Постоянные Оорта
@ru
오르트 상수
@ko