Universe Sandbox – Software de Astronomia 3D

Our Solar System
Galaxy Collision

El Universe Sandbox es programa un estilo Google Earth pero para ver lunas, planetas, y galaxias.Es más vistoso que el Celestia y mucho más fácil de manejar, pero le falta el movimiento de cámara (zoom, distancia y posición) y de seguimiento de objetos del Celestia. Más fácil pero más soso.

Y no es software libre!

Pero se deja usar.





Left ClickSelect a body.Click a selected body to focus on it.
Right ClickClick on a body to show properties popup.
Click and DragRotate your view around the focused body.
Mouse WheelZoom in and out


Main Controls

ESCShow / hide the Menu
EnterShow / hide the Control Panel
Alt + EnterToggle windowed / full screen
TabShow / hide play button & clock
Ctrl-OOpen a system
Ctrl-SSave a system
Ctrl-RRestart the current system
Ctrl-FShow the Find Tool
F1Quick reference info
F2Open a system

System Commands

FCreate a new body
ZZero system momentum
XHalve all velocities
O (the letter)Orbit All – forces all bodies to orbit their current gravitational parent

Simulation Controls

SpacebarStart & stop time (play/pause)
E or Numpad +Speed up time
D or Numpad –Slow down time
A or Numpad EnterAuto time step
RReverse all velocities
Ctrl-Numpad EnterReal Time (where 1 simulated sec = 1 real sec)
= (plus key)Increase gravity
– (minus key)Decrease gravity
0 (the number)Turn gravity off
9Set gravity to 1.0 (normal)
8Set gravity to 0.5
7Set gravity to 0.25
6Set gravity to -1.0 (negative)
UToggle between collision modes
Shift-iChange the collision elasticity in bounce mode.

Body Commands

Select a body to use these commands.

VLight Pulse
Ctrl-WSets the radius of the body so that its escape velocity equals the speed of light (this is the Schwarzschild radius)
PSet body to the center of the system. This shows all movement of other bodies relative to the hovered body.
MMove Body:Hold down this key and move the cursor to move the hovered body.
NRotate Body:Hold down this key and move the cursor left or right to rotate the hovered body. While holding down the key also press Shift or Ctrl to rotate on the other 2 primary axis.

View Controls

W or F7Zoom In
S or F8Zoom Out
Shift-F7Decrease Camera FOV (field of view)
Shift-F8Increase Camera FOV (field of view)
BShow / hide bodies
TShow / hide trails
LShow / hide labels
HShow / hide highlights
GShow / hide grid
; (semicolon)Show / hide relationship lines (connects bodies with their gravitational parent)
Ctrl-DClear dust
Ctrl-TClear trail data
CNext color mode
Shift-CPrevious color mode
Ctrl-CToggle 3D mode on/off
Ctrl-BToggle Background on/off
Ctrl-GToggle Glow on/off
QToggle drawing size of bodies (always visible or true to scale)
[Decrease # of drawn trail segments
]Increase # of drawn trail segments
ShiftShow a body’s Hill Sphere
(while hovering over it)
CtrlShow a body’s Lagrange Points
(while hovering over it)

Capture Controls

F4Toggle movie record (multiple screenshots)
F9Take hi-res screenshots
F12Take screenshot
Ctrl+F12Take screenshot with UI
Ctrl-F2Shift-F2Alt-F2Set hi-res screenshot to 2×2, 4×4, or 5×5 (default is 3×3)

Experimental & Unfinished Features

Shift-BToggle between different calculation modes for particles/dust. (effect is not obvious – the default mode is more accurate)
Ctrl-NToggles between normal and Modified Newtonian Dynamics(currently disabled)
JStrange forces – Causes bodies to repel each other when they get too close. Works great with the simulation “Moons, small cluster”(This isn’t based on anything real.)
3Restore saved camera position (not currently working)
Ctrl-F7Ctrl-F8Adjust engine scale (outdated controls, no longer works)
Ctrl-1Ctrl-2Ctrl-3Ctrl-4Ctrl-5Quick load a specific simulations (used for testing)
YFire a ‘photo torpedo’ – Triggers an explode command on any body it intersects
Ctrl-LToggles experimental light mode
F3Toggle between zoom and normal modes (not currently working)
Shift-RCreate rope between body #1 & #2
Ctrl-Shift-RShow/hide rope slider controls

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