## Tag: velocity

12 How do we calculate the escape velocity of galaxies? 2013-12-13T18:10:31.763

8 What is the standard reference point for measuring speed? 2013-10-10T23:45:07.563

8 What (actually) is the " deprojected half-light radius" of this almost-all-dark-matter Galaxy? 2016-08-26T04:17:56.870

8 Why does Gaia use only calcium NIR lines for stellar radial velocity measurements? 2016-09-16T16:10:07.540

8 Which celestial object in the solar system has the fastest tangential velocity at its surface? 2016-12-31T19:55:15.117

8 Can "rogue" supermassive black holes be made this way? 2018-06-27T17:05:20.090

5 What is the optimal escape trajectory from near a black hole? 2014-06-01T15:40:05.780

5 Are black holes solely responsible for hyper velocity stars? 2015-04-19T10:16:41.827

5 Why most planets don't spin retrograde? 2017-12-01T13:51:30.040

4 How to calculate the heliocentric velocity of an object? 2015-09-27T21:41:46.140

4 How do I determine the velocity of Pluto at aphelion and perihelion? 2018-01-21T16:43:24.463

4 Calculating obital velocity from radial velocity 2018-05-08T05:36:06.473

3 What is $v_{GSR}$ 2014-06-03T13:47:56.587

3 radial velocity fitting of a binary 2015-06-06T06:21:29.670

3 A rough analytical expression for the Milky Way's radial mass distribution? 2018-04-26T04:55:45.093

2 Convert orbital elements to positions and velocities 2014-03-02T09:28:34.740

2 In theory, is there anywhere in the universe where velocity=0? 2015-03-16T18:26:40.593

2 Question regarding the Milky Way when calculating galactic space velocities for galaxies 2016-04-16T20:29:57.643

2 Why does the neutral hydrogen velocity have this characteristic behavior in the galactic plane? 2016-10-23T08:47:27.173

2 What does the velocity dispersion of a galaxy mean? 2016-11-04T12:21:29.320

2 Question about doppler effect 2017-03-29T08:46:20.027

2 Does Absolute Velocity Exist? 2017-09-13T15:17:43.940

2 Circular velocity in axisymmetrici potential 2017-10-19T07:16:22.743

2 How is interstellar gas density mapped from GAIA data? 2018-04-26T05:13:57.747

1 How does one measure velocities of far-off, bright objects 2015-03-17T01:17:03.110

1 Does the universe prefer a velocity? 2015-06-20T18:50:07.960

1 Suns Orbital speed and escape velocity question 2015-07-10T02:11:39.130

1 The moon: how to determine its size, speed and distance from earth using a simple telescope? 2016-03-13T06:41:07.800

1 How do I modify redshifts to gain corrected line of sight velocities? 2016-03-27T19:33:30.190

1 Can we tell how fast bodies are moving away by measuring their frequency? 2016-04-03T17:14:01.930

1 How do I apply a velocity shift to a wavelength array with uniform logarithmic spacing? 2016-06-16T20:24:56.030

1 How was the acceleration calculated for this CME (Coronal Mass Ejection)? 2016-08-02T02:54:53.253

1 Integrating radial velocity with respect to time 2016-08-09T09:22:42.933

0 Which software is appropriate to integrate radial velocity with respect to time 2016-08-10T14:24:01.077

0 How to calculate a phase shift in the process of deriving Baade-Wesselinke distance? 2016-08-11T07:42:55.907

0 What is the fastest a galaxy or other body has been measured to (or can) travel? 2018-06-27T16:47:46.853

-2 If velocity is relative, why mass (inertia) is increasing absolutely? 2017-01-03T16:23:34.890