Index

1 million-light-year grid

1,000-light-year grid

Earth's Radio Sphere | Sun-Centered Coordinate Grids

1-light-month grid

The Farthest Man-Made Objects | Sun-Centered Coordinate Grids

1-light-year grid

The Oort Cloud Shows | Sun-Centered Coordinate Grids

10 million-light-year grid

10,000-light-year grid

OB Associations Are in | Sun-Centered Coordinate Grids

10-light-year grid

The Nearest Stars Are | Sun-Centered Coordinate Grids

100 million-light-year grid

100,000-light-year grid

Sun-Centered Coordinate Grids

100-light-year grid

20 billion-light-year grid

2dF Survey

2dF Galaxy Survey

galaxies: Galaxy Surveys | 2dF Galaxy Survey
quasars: Quasar Surveys | 2dF Quasar Survey

2MASS Galaxy Catalog

2MASS Galaxy Catalog

2MASS proximity factor

The Proximity Factor | Data Variables

Abell Galaxy Clusters

absolute magnitude

Intrinsic Brightnesses

active data group

Appendix: Constants and Units

all-sky survey

atomic hydrogen: Atomic Hydrogen Survey
carbon monoxide: Carbon Monoxide All-Sky Survey
far-infrared: Far Infrared Survey
gamma-ray: Gamma-Ray All-Sky Survey
hydrogen-alpha: Hydrogen-Alpha All-Sky Survey
IRAS composite: IRAS Composite All-Sky Survey
microwave: Microwave (WMAP) All-Sky Survey
two-micron: Two Micron (2MASS) All-Sky
visible: Visible All-Sky Survey | Visible All-Sky Survey

alpha command

Brightening the Lines | The Band of the

Alpha Slider

Partiview's User Interface | The Band of the

alternate star names

Alternate Star Names

Andromeda Galaxy

We Are a Member | Size of Our Star | Galaxy Image | Galaxies | Appendix: Light-Travel Time and

apparent magnitude

Stellar Brightness

astronomical unit

atomic hydrogen all-sky survey

Atomic Hydrogen Survey

att Button

B-V color

Color Is Derived from

Back Button

Big Bang

The Cosmic Microwave Background | The Cosmic Microwave Background | Microwave (WMAP) All-Sky Survey

bow shock

Box Toggle Button

brown dwarf

Carbon Monoxide All-Sky Survey

carbon monoxide all-sky survey

celestial coordinates

Celestial Coordinates Resemble Earth's | Celestial Coordinates Sphere | Celestial Coordinates

censize command

Changing the Point of

Censize Slider

Partiview's User Interface | Changing the Point of

center command

Seeing Uncertainty | The Sun Is 26,000

clip command

Adjust the Clipping Planes | We Are a Member

clipbox command

Local Large-Scale Structure

clipping planes

Adjust the Clipping Planes | We Are a Member

cment command

Changing Their Color

COBE mission

Microwave (WMAP) All-Sky Survey

command

alpha: Brightening the Lines | The Band of the
censize: Changing the Point of
center: Seeing Uncertainty | The Sun Is 26,000
clip: Adjust the Clipping Planes | We Are a Member
clipbox: Local Large-Scale Structure
cment: Changing Their Color
datavar: Stellar Data Variables
every: A Random Subset
jump: The Nearest Stars
lsize: We Are a Member
lum const: Setting the Stars to
lum datavar: Setting the Stars to
only=: Galactic Census
see: Intrinsically Bright Stars Lie | Threshold the Stars
see all: Stellar Distances Are Determined
textcment: Changing the Label Color | Exoplanetary Systems
thresh: Stellar Brightness | Seeing Only the Nearest | Galactic Census

Command Line

Console Window

Microwave (WMAP) All-Sky Survey

constellations

Constellations | Constellation Connectivity Lines | Constellations

coordinate system

celestial: Celestial Coordinates Resemble Earth's | Celestial Coordinates Sphere | Celestial Coordinates
ecliptic: Ecliptic Coordinates are Based | Ecliptic Coordinates are Based | Ecliptic Coordinates Sphere
equatorial: see celestial
Galactic: Galactic Coordinates Trace the | Galactic Coordinates Sphere | Galactic Coordinates

Cosmic Background Explorer

cosmic microwave background

The Cosmic Microwave Background | Edge of the Observable | Microwave (WMAP) All-Sky Survey

origin: Origin of the CMB
temperature: The Cosmic Microwave Background

dark energy

The Distance Scale

data group list

Extragalactic Atlas: Extragalactic Atlas Overview
Milky Way Atlas: Milky Way Atlas Overview

data groups

100kly

Sun-Centered Coordinate Grids

100ly

100Mly

10kly

OB Associations Are in | Sun-Centered Coordinate Grids

10ly

The Nearest Stars Are | Sun-Centered Coordinate Grids

10Mly

1Gly

1kly

Earth's Radio Sphere | Sun-Centered Coordinate Grids

1lmo

The Farthest Man-Made Objects | Sun-Centered Coordinate Grids

1ly

The Oort Cloud Shows | Sun-Centered Coordinate Grids

1Mly

20Gly

2dFgals

Galaxy Surveys | 2dF Galaxy Survey

2dFQSOs

Quasar Surveys | 2dF Quasar Survey

2MASS

2MASS Galaxy Catalog

Abell

altLbl

Alternate Star Names

bar

Our Barred Galaxy | Galactic Bar

bulge

The Galactic Bulge | The Galactic Bulge

constel

Constellations | Constellation Connectivity Lines | Constellations

dso

dwarfs

Extragalactic Data Groups

eclip

Ecliptic Coordinates are Based | Ecliptic Coordinates Sphere

err

Distance Uncertainty | The Stellar Distance Uncertainty

expl

Exoplanetary Systems | Extrasolar Planets

Extragalactic Atlas

list: Extragalactic Atlas Overview

galac

Galactic Coordinates Trace the | Galactic Coordinates Sphere | Galactic Coordinates

galaxy

The Galactic Disk | Galaxy Image | Galaxy Image

galGrid

IRAS Composite All-Sky Survey

gc

Globular Clusters Are Mostly | Globular Clusters | Globular Star Clusters

h2

HII Regions | HII Regions

halo

The Galactic Halo | The Galactic Halo | Milky Way Halo

IRASc

isoDensity

Tully's Smoothed Density Surfaces

lgrp

We Are a Member | Local Group of Galaxies

local

The Local Universe | Local Galaxies

Milky Way Atlas

Milky Way Data Groups

list: Milky Way Atlas Overview

mw2MASS

Two Micron (2MASS) All-Sky

mwCO

Carbon Monoxide All-Sky Survey

mwFIR

Far Infrared Survey

mwGamma

Gamma-Ray All-Sky Survey

mwH

Atomic Hydrogen Survey

mwHa

Hydrogen-Alpha All-Sky Survey

mwVis

The Band of the | Visible All-Sky Survey | Visible All-Sky Survey

nearstars

Nearby Stars

ob

OB Associations | OB Associations

oc

Open Clusters Are Found | Open Star Clusters | Open Star Clusters

oort

The Oort Cloud Shows | Oort Cloud Sphere

oricl

Orion Nebula Star Cluster

orineb

Celestial Coordinates Resemble Earth's

pn

Planetary Nebulae

probes

The Farthest Man-Made Objects | Spacecraft Trajectories

pul

Pulsars Are Spinning Neutron | Pulsars

radec

Celestial Coordinates Resemble Earth's | Earth's Radio Sphere | Celestial Coordinates Sphere | Celestial Coordinates

SloanGals

Galaxy Surveys | Sloan Galaxy Survey

SloanQSOs

Quasar Surveys | Sloan Quasar Survey

sloanstars

Sloan Stars

snr

Supernova Remnants Are the | Supernova Remnants

solsys

The Solar System | Planetary Orbits

starorbits

Stellar Orbits

stars

AMNH Stars | AMNH Fixed Stars

Tully

Local Large-Scale Structure | Tully's Nearby Galaxies | Tully Galaxy Catalog

wmap

Edge of the Observable | Microwave (WMAP) All-Sky Survey

data variables

Stellar Data Variables

datavar command

Stellar Data Variables

declination

deep-sky images

Digital Universe

configure: Customizing the Digital Universe
customize: Customizing the Digital Universe
discussion group: Getting Help
files: Digital Universe Files
help: Getting Help
installing: Installing the Digital Universe
license: Digital Universe License
listserve: Getting Help
starting: Launching the Milky Way | Digital Universe Files

distance

light-travel time: Appendix: Light-Travel Time and
light-year: Appendix: Light-Travel Time and
parallax: Appendix: Parallax and Distance
parsec: Appendix: Parallax and Distance | Appendix: Constants and Units
redshift: Appendix: Redshift and Distance

distance uncertainty

Distance Uncertainty

dwarf objects

Ecliptic Coordinates are Based

Earth's radio signals

Earth's Radio Sphere

ecliptic

ecliptic coordinates

Ecliptic Coordinates are Based | Ecliptic Coordinates Sphere

electromagnetic spectrum

elliptical galaxy

Galaxies | Data Variables

emission nebula

every command

A Random Subset

Extragalactic Atlas

1 billion-light-year grid

1 million-light-year grid

10 million-light-year grid

100 million-light-year grid

100,000-light-year grid

20 billion-light-year grid

2dF Survey

galaxies: Galaxy Surveys | 2dF Galaxy Survey
quasars: Quasar Surveys | 2dF Quasar Survey

2MASS Galaxy Catalog

2MASS Galaxy Catalog

Abell Galaxy Clusters

Extragalactic Atlas Overview

celestial coordinates

Celestial Coordinates

constellations

Constellations

data group list

Galactic coordinates

Galactic Coordinates

local galaxies

The Local Universe | Local Galaxies

microwave all-sky survey

Edge of the Observable | Microwave (WMAP) All-Sky Survey

Milky Way

halo: Milky Way Halo
image: Galaxy Image

optimizing

Optimizing the Extragalactic Atlas

overview

Extragalactic Atlas Overview

Sloan Digital Sky Survey

galaxies: Galaxy Surveys | Sloan Galaxy Survey
quasars: Quasar Surveys | Sloan Quasar Survey
stars: Sloan Stars

stars data group

AMNH Fixed Stars

Tully density surface

Tully's Smoothed Density Surfaces

Tully galaxy catalog

Local Large-Scale Structure | Tully's Nearby Galaxies | Tully Galaxy Catalog

visible all-sky survey

Visible All-Sky Survey

extrasolar planets

Exoplanetary Systems | Extrasolar Planets

far-infrared all-sky survey

Far Infrared Survey

Feed Button

files

*.bat: Digital Universe Files
*.cf: Customizing the Digital Universe
*.cmap: Digital Universe Files
*.command: Digital Universe Files
*.label: Digital Universe Files
*.obj: Digital Universe Files
*.sgi: Digital Universe Files
*.sh: Digital Universe Files
*.speck: Digital Universe Files
color map: Digital Universe Files
configure: Customizing the Digital Universe
data: Digital Universe Files
image: Digital Universe Files
label: Digital Universe Files
start script: Digital Universe Files

finger of god effect

Seeing Uncertainty | Radial Stretching

flight mode

active: Moving Off the Point
changing: Changing the Flight Mode | Using the Keyboard to
Fly: Flight Modes | Moving Off the Point
Orbit: Flight Modes | Moving Off the Point
Rotate: Flight Modes | Using the Keyboard to
Translate: Flight Modes | Translate Flight Mode

Flight Mode Menu

flight path

control

att Button: Partiview's User Interface
Flight Path Slider: Partiview's User Interface
Frame Controls: Partiview's User Interface
Path Button: Partiview's User Interface
Play Button: Partiview's User Interface

loading

playing

Flight Path Slider

flight scale

linear: Flight Scale
logarithmic: Flight Scale

Fly Flight Mode

Flight Modes | Moving Off the Point

FOV Slider

Partiview's User Interface | What Do Other Data

Galactic coordinates

Galactic Coordinates Trace the | Galactic Coordinates Sphere | Galactic Coordinates

galactic star clusters

see open star clusters

galaxy

cluster: Cosmological Structure Formation
interaction: Our Nearest Neighbor
redshift: Appendix: Redshift and Distance
supercluster: Cosmological Structure Formation
types: Galaxies | Data Variables

Galaxy grid

galaxy superclusters

gamma-ray all-sky survey

Gamma-Ray All-Sky Survey

gamma-ray light

globular star cluster

age: Open Clusters Are Younger

globular star clusters

Globular Clusters Are Mostly | Globular Clusters | Globular Star Clusters

grids

extragalactic

1 billion-light-year: Extragalactic Coordinate Grids
1 million-light-year: Extragalactic Coordinate Grids
10 million-light-year: Extragalactic Coordinate Grids
100 million-light-year: Extragalactic Coordinate Grids
100,000-light-year: Extragalactic Coordinate Grids
20 billion-light-year grid: Extragalactic Coordinate Grids

Galaxy

Sun-centered

1,000-light-year: Sun-Centered Coordinate Grids
1-light-month: Sun-Centered Coordinate Grids
1-light-year: Sun-Centered Coordinate Grids
10,000-light-year: Sun-Centered Coordinate Grids
10-light-year: Sun-Centered Coordinate Grids
100-light-year: Sun-Centered Coordinate Grids

Group Buttons

Groups Menu

help

Getting Help

HII regions

HII Regions | HII Regions | The Orion Nebula Model

Hipparchus

Stellar Brightness

Home Button

Appendix: Redshift and Distance

Hubble's Law

Hubble, Edwin

Size of Our Star | Galaxy Image | Galaxies | The Magellanic Clouds | Data Variables

Hyades star cluster

Distance Uncertainty

hydrogen-alpha all-sky survey

Hydrogen-Alpha All-Sky Survey

infrared light

Why Use Infrared Telescopes? | Appendix: Electromagnetic Spectrum

installation

Installing the Digital Universe

IRAS composite all-sky survey

IRAS Composite All-Sky Survey

irregular galaxy

Galaxies | Data Variables

jump command

The Nearest Stars

Kelvin

Appendix: Constants and Units

L dwarf

Label Toggle Button

Labelmin Slider

Labelsize Slider

Large Magellanic Cloud

The Magellanic Clouds

large-scale structure

Galaxies

light-day

The Farthest Man-Made Objects | Appendix: Light-Travel Time and

light-hour

light-month

Appendix: Light-Travel Time and | Appendix: Light-Travel Time and

light-second

light-travel time

light-week

Galaxy Clusters and Superclusters

light-year

Appendix: Light-Travel Time and | Appendix: Constants and Units

linear flight scale

Flight Scale

local galaxies

The Local Universe | Local Galaxies

Local Group

Local Supercluster

logarithmic flight scale

Flight Scale

look-back time

Appendix: Redshift and Distance

lsize command

We Are a Member

lum const command

Setting the Stars to

lum datavar command

Setting the Stars to

Macintosh mouse

Mouse Controls

menu

Flight Mode: Partiview's User Interface
Groups: Partiview's User Interface
More: Partiview's User Interface
Slider: Partiview's User Interface

Messier, Charles

Appendix: Constants and Units

micron

microwave all-sky survey

Edge of the Observable | Microwave (WMAP) All-Sky Survey

microwave light

Sun-Centered Coordinate Grids

Milky Way

The Milky Way Atlas

bar: Our Barred Galaxy | Galactic Bar
bulge: The Galactic Bulge | The Galactic Bulge
disk component: The Galactic Disk
halo: The Galactic Halo | The Galactic Halo | Milky Way Halo
image: The Galactic Disk | Galaxy Image | Galaxy Image
nucleus: The Galactic Center
spherical component: The Spherical Component
spiral arms: Astronomers Use HII Regions

Milky Way Atlas

1,000-light-year grid

Earth's Radio Sphere | Sun-Centered Coordinate Grids

1-light-month grid

The Farthest Man-Made Objects | Sun-Centered Coordinate Grids

1-light-year grid

The Oort Cloud Shows | Sun-Centered Coordinate Grids

10,000-light-year grid

OB Associations Are in | Sun-Centered Coordinate Grids

10-light-year grid

The Nearest Stars Are | Sun-Centered Coordinate Grids

100-light-year grid

alternate star names

Alternate Star Names

atomic hydrogen all-sky survey

Atomic Hydrogen Survey

carbon monoxide all-sky survey

Carbon Monoxide All-Sky Survey

celestial coordinates

Celestial Coordinates Resemble Earth's | Celestial Coordinates Sphere

constellations

Constellations | Constellation Connectivity Lines

data group list

Milky Way Atlas Overview

deep-sky images

dwarf objects

ecliptic coordinates

Ecliptic Coordinates are Based | Ecliptic Coordinates Sphere

extrasolar planets

Exoplanetary Systems | Extrasolar Planets

far-infrared all-sky survey

Far Infrared Survey

Galactic coordinates

Galactic Coordinates Trace the | Galactic Coordinates Sphere

Galaxy grid

Hydrogen-Alpha All-Sky Survey

gamma-ray all-sky survey

Gamma-Ray All-Sky Survey

globular star clusters

Globular Clusters Are Mostly | Globular Clusters | Globular Star Clusters

HII regions

HII Regions | HII Regions

hydrogen-alpha all-sky survey

IRAS composite all-sky survey

IRAS Composite All-Sky Survey

Local Group

We Are a Member | Local Group of Galaxies

Milky Way

bar: Our Barred Galaxy | Galactic Bar
bulge: The Galactic Bulge | The Galactic Bulge
halo: The Galactic Halo | The Galactic Halo
image: The Galactic Disk | Galaxy Image

Nearby Stars

Nearby Stars

OB associations

OB Associations | OB Associations

Oort cloud

The Oort Cloud Shows | Oort Cloud Sphere

open star clusters

Open Clusters Are Found | Open Star Clusters | Open Star Clusters

optimizing

Optimizing the Milky Way

Orion Nebula

Orion Nebula Star Cluster

Orion Nebula star cluster

overview

Milky Way Atlas Overview

planetary nebulae

Planetary Nebulae

planetary orbits

The Solar System | Planetary Orbits

pulsars

Pulsars Are Spinning Neutron | Pulsars

radio sphere

Earth's Radio Sphere

spacecraft trajectories

The Farthest Man-Made Objects | Spacecraft Trajectories

stars data group

AMNH Stars

stellar distance uncertainty

Distance Uncertainty | The Stellar Distance Uncertainty

stellar orbits

Stellar Orbits

supernova remnants

Supernova Remnants Are the | Supernova Remnants

two-micron all-sky survey

Two Micron (2MASS) All-Sky

visible all-sky survey

The Band of the | Visible All-Sky Survey

More Menu

The Cosmic Microwave Background

mouse controls

Mouse Controls

Group Buttons: Partiview's User Interface
navigation: Flight Modes

mw.cf file

Customizing the Digital Universe | Save Your Changes

navigation

Flight Modes

Nearby Stars

Nearby Stars

nebula

emission: The Orion Nebula Model

OB associations

OB Associations | OB Associations

observable Universe

only= command

Galactic Census

Oort cloud

The Oort Cloud Shows | Oort Cloud Sphere

open star cluster

age: Open Clusters Are Younger

open star clusters

Open Clusters Are Found | Open Star Clusters | Open Star Clusters

Orbit Flight Mode

Flight Modes | Moving Off the Point

Orion Nebula

Orion Nebula Star Cluster

Orion Nebula star cluster

parallax

photometric: Photometric Parallax
trigonometric: Stellar Distances Are Determined | Appendix: Parallax and Distance

parsec

Appendix: Parallax and Distance | Appendix: Constants and Units

Partiview

command

alpha: Brightening the Lines | The Band of the
censize: Changing the Point of
center: Seeing Uncertainty | The Sun Is 26,000
clip: Adjust the Clipping Planes | We Are a Member
clipbox: Local Large-Scale Structure
cment: Changing Their Color
datavar: Stellar Data Variables
entering: Partiview's User Interface
every: A Random Subset
jump: The Nearest Stars
lsize: We Are a Member
lum const: Setting the Stars to
lum datavar: Setting the Stars to
only=: Galactic Census
see: Intrinsically Bright Stars Lie | Threshold the Stars
see all: Stellar Distances Are Determined
textcment: Changing the Label Color | Exoplanetary Systems
thresh: Stellar Brightness | Seeing Only the Nearest | Galactic Census

Command Line

Console Window

flight modes

Flight Modes

flight path controls

att Button: Partiview's User Interface
Flight Path Slider: Partiview's User Interface
Frame Controls: Partiview's User Interface
Path Button: Partiview's User Interface
Play Button: Partiview's User Interface

Group Buttons

Home Button

Learning to Fly Partiview

menu

Flight Mode: Partiview's User Interface
Groups: Partiview's User Interface
More: Partiview's User Interface
Slider: Partiview's User Interface

navigation

position reset

The Nearest Stars Are

slider

Alpha: Partiview's User Interface | The Band of the
Censize: Partiview's User Interface | Changing the Point of
Flight Path: Partiview's User Interface
FOV: Partiview's User Interface | What Do Other Data
Labelmin: Partiview's User Interface
Labelsize: Partiview's User Interface
Polysides: Partiview's User Interface
Polysize: Partiview's User Interface
range: Partiview's User Interface
Scale Button: Partiview's User Interface
Slum: Partiview's User Interface | Exoplanetary Systems
Speed: Partiview's User Interface

time controls

Back Button: Partiview's User Interface
Feed Button: Partiview's User Interface
Reference Time Display: Partiview's User Interface
Speed Slider: Partiview's User Interface
Speed Toggle Button: Partiview's User Interface
Time Control Buttons: Partiview's User Interface
Time Dial: Partiview's User Interface
Time Display: Partiview's User Interface
Trip Button: Partiview's User Interface

toggle button

Box: Partiview's User Interface
Label: Partiview's User Interface
Point: Partiview's User Interface
Polygon: Partiview's User Interface | Viewing the Solar System
Speed: Partiview's User Interface
Texture: Partiview's User Interface

user interface

Path Button

The Farthest Man-Made Objects

photometric parallax

Photometric Parallax

Pioneer spacecraft

planetary nebulae

Planetary Nebulae

planetary orbits

The Solar System | Planetary Orbits

Play Button

Pleiades star cluster

Seeing Uncertainty

Point of Interest

Your Initial Location | Starting from Home

changing: Flight Modes | Changing the Point of

Point Toggle Button

Polygon Toggle Button

Partiview's User Interface | Viewing the Solar System

Polysides Slider

Polysize Slider

proplyd

Proxima Centauri

Proxima Centauri Is the

pulsars

Pulsars Are Spinning Neutron | Pulsars

quasar

Quasi-Stellar Objects (Quasars) | What Is a Quasar? | What Are Quasars?

discovery: Discovering Quasars

quasi-stellar objects

see quasar

radio light

radio sphere

Earth's Radio Sphere | The Radio Sphere

redshift

Quasi-Stellar Objects (Quasars) | The Cosmic Microwave Background | Appendix: Redshift and Distance

Reference Time Display

Celestial Coordinates Resemble Earth's

right ascension

Rotate Flight Mode

Flight Modes | Using the Keyboard to

Sagittarius dwarf spheroidal galaxy

Our Nearest Neighbor

see all command

Stellar Distances Are Determined

see command

Intrinsically Bright Stars Lie | Threshold the Stars

selecting data points

Flight Modes | Proxima Centauri Is the

Shapley, Harlow

Globular Clusters Are Mostly | Size of Our Star | Galaxy Image | Our Nearest Neighbor

slider

Alpha

Partiview's User Interface | The Band of the

Censize

Partiview's User Interface | Changing the Point of

Flight Path

FOV

Partiview's User Interface | What Do Other Data

Labelmin

Labelsize

Polysides

Polysize

range

linear: Partiview's User Interface
logarithmic: Partiview's User Interface

Slum

Partiview's User Interface | Exoplanetary Systems

Speed

Slider Menu

Slider Scale Button

Sloan Digital Sky Survey

Sloan Galaxy Survey

galaxies: Galaxy Surveys | Sloan Galaxy Survey
quasars: Quasar Surveys | Sloan Quasar Survey
stars: Sloan Stars

Slum Slider

Partiview's User Interface | Exoplanetary Systems

Small Magellanic Cloud

The Magellanic Clouds

spacecraft trajectories

The Farthest Man-Made Objects | Spacecraft Trajectories

speed of light

Speed Slider

Speed Toggle Button

spiral galaxy

Galaxies | Data Variables

star

brightness: Stellar Brightness
color: Color Is Derived from
distance uncertainty: Distance Uncertainty
luminosity: Intrinsic Brightnesses
orbit: Stellar Orbits
parallax: Stellar Distances Are Determined | Appendix: Parallax and Distance

stars data group

AMNH Stars | AMNH Fixed Stars

stellar distance uncertainty

Distance Uncertainty | The Stellar Distance Uncertainty

stellar orbits

Stellar Orbits

supercluster

Galaxy Clusters and Superclusters | Clusters of Clusters

superclusters

supernova remnants

Supernova Remnants Are the | Supernova Remnants

T dwarf

textcment command

Changing the Label Color | Exoplanetary Systems

Texture Toggle Button

thresh command

Stellar Brightness | Seeing Only the Nearest | Galactic Census

Time Control Buttons

time controls

Back Button: Partiview's User Interface
Feed Button: Partiview's User Interface
Reference Time Display: Partiview's User Interface
Speed Slider: Partiview's User Interface
Speed Toggle Button: Partiview's User Interface
Time Control Buttons: Partiview's User Interface
Time Dial: Partiview's User Interface
Time Display: Partiview's User Interface
Trip Button: Partiview's User Interface

Time Dial

Time Display

Appendix: Parallax and Distance

toggle button

Box: Partiview's User Interface
Label: Partiview's User Interface
Point: Partiview's User Interface
Polygon: Partiview's User Interface | Viewing the Solar System
Speed: Partiview's User Interface
Texture: Partiview's User Interface

Translate Flight Mode

Flight Modes | Translate Flight Mode

trigonometric parallax

Trip Button

Tully's Smoothed Density Surfaces

Tully density surface

Tully galaxy catalog

Local Large-Scale Structure | Tully's Nearby Galaxies | Tully Galaxy Catalog

Two-degree Field Survey

2dF Galaxy Survey

two-micron all-sky survey

Two Micron (2MASS) All-Sky

ultraviolet light

Universe

age: The Distance Scale
baby picture: The WMAP Image
Big Bang: The Cosmic Microwave Background | The Cosmic Microwave Background | Microwave (WMAP) All-Sky Survey
expansion: The Distance Scale | Origin of the CMB | Appendix: Redshift and Distance
large-scale structure: Galaxies
look-back time: Appendix: Redshift and Distance
origin: The Cosmic Microwave Background | The Cosmic Microwave Background | Microwave (WMAP) All-Sky Survey

user interface

Galaxy Clusters and Superclusters

Virgo galaxy cluster

The Virgo Cluster

Virgo Supercluster

visible all-sky survey

The Band of the | Visible All-Sky Survey | Visible All-Sky Survey

visible light

The Farthest Man-Made Objects

void

Filaments and Voids

Voyager spacecraft

Wilkinson Microwave Anisotropy Probe

The Cosmic Microwave Background | Microwave (WMAP) All-Sky Survey

WMAP

see Wilkinson Microwave Anisotropy Probe

X-ray light