Welcome to Tiny Star Viewer!

Take one step into the night sky, and a world of stories among the stars unfolds before you.

Tiny Star Viewer is a web-based service that requires no installation.
You can simulate the positions and movements of stars, constellations,
celestial objects, and planets from anywhere in the world.

* There is no charge for using this service.

* The service is still under development and adjustment. Thank you for your understanding.

* Multilingual support pages are currently under development *

Click here for instructions on how to use the viewer.

MAIN VIEW

TINY STAR VIEWER for PC – Simulate the starry sky from any location * Worldwide support *
- Study Version (STUDY)
  Japan ( Japanese / English / French / Spanish / German / Portuguese / Vietnamese / Russian / Korean / Traditional Chinese / Simplified Chinese)
- Standard Version (STANDARD) – Displays about 9,000 stars from BSC5 + 118,000 stars from HIP * Recommended *
  World Version ( Japanese / English / French / Spanish / German / Portuguese / Vietnamese / Russian / Korean / Traditional Chinese / Simplified Chinese)
- Lightweight Version (LIGHT WEIGHT) – Displays about 3,000 stars from BSC5
  World Version ( Japanese / English / French / Spanish / German / Portuguese / Vietnamese / Russian / Korean / Traditional Chinese / Simplified Chinese)
- High-Precision Planet Display
  JPL DE440s (NASA Database)
- Ancient Chinese Constellations
  Traditional Chinese / Simplified Chinese
TINY STAR VIEWER for MOBILE – View the starry sky with your smartphone
- Standard Version (STANDARD) – Displays about 9,000 stars from BSC5 + 118,000 stars from HIP
  World Version ( Japanese / English / French / Spanish / German / Portuguese / Vietnamese / Russian / Korean / Traditional Chinese / Simplified Chinese)
- Satellite Monitor – Displays bright artificial satellites
  World Version ( Japanese / English / French / Spanish / German / Portuguese / Vietnamese / Russian / Korean / Traditional Chinese / Simplified Chinese)
- Useful Tools
  MOON DISP – Check lunar phases and libration
  AZIMUTH TELLER – A compass said to be used by Onmyoji!?
TINY STAR VIEWER Link Collection – Currently being rebuilt
- BASIC Exhibition Room – Piano performances and interactive demos
- Paper Airplane Collection – Includes templates that fly well!

TINY STAR VIEWER ZETA GSC
Deep Sky Display using the GSC Star Catalog

TINY STAR VIEWER FOR PC - MANIAX
- - MANIAX - More dynamic views with large-scale star catalogs…
  - Zeta HIP (About 118,000 stars from HIP)
  - Zeta SAO (About 260,000 stars from SAO)
- - DATABASE (ONLINE) VIEWER - Online access to large-scale databases
  ( [QRY>][LD] to LOAD EXTRA DATA ! )
  - Zeta HD (Viewer for HD/HDE DB)
  - Zeta GSC (Viewer for GSC 1.x DB)
- - DATABASE (OFFLINE) VIEWER - Offline access to large-scale databases
  ( [QRY>][LD] to LOAD EXTRA DATA ! )
  - Zeta Tycho (Viewer for Tycho DB / Requires local file: tyc_main.dat)
  - Zeta Tycho2 with VariableStars (Viewer for Tycho-2 DB / Requires local file: tyc2.dat) ※Supports variable star database※
  - Zeta Tycho2 with JPL DE440s (Viewer for Tycho-2 DB / Requires local file: tyc2.dat)
  - Zeta AC (Viewer for AC2000 DB / Requires local files: ac_*.dat)
- - HINT - 1

TINY STAR VIEWER ASTROLOGICAL
Astrological-style Display Features

TINY STAR VIEWER FOR PC - ASTROLOGICAL
- - ASTROLOGICAL - Displaying the zodiac signs and planetary positions
  - World / Japanese / English / French
  - Manual

SATE LIGHT
Tracking Artificial Satellites
SATE LIGHT MONITOR
Displaying satellite paths over the starry sky

SATELLITE INFORMATION - Chase the satellites!
- SATELLITE TRACE ENGINE LIGHT – Lightweight satellite monitor (Nickname: SATE LIGHT)
  SATE LIGHT / STARLINK
- SATELLITE MONITOR – Overlay satellite information onto the night sky
  SATE LIGHT MONITOR
- HINT 1

MOON DISP
Investigating lunar phases, libration, and eclipses

REFERENCE – Tools for astronomical research
- Julian Days Clock – Current time and Julian Day
  - JD Clock
- MOON DISP – Check the appearance of the Moon
  - MOON DISP (Ver. 1.4.0)
  - HINT 1
- ORBIT VIEWER – Overview of planetary orbits
  - ORBIT VIEWER (Ver. 1.1.0) with HAYABUSA2 (Data provided by JAXA)
- VARIABLE STARS – Support tools for observing variable stars
  - MIRA DISP (Ver. 1.0.0)
  - POGSON @ WEB (Ver. 1.0.0)
- JABINARY – Research tools – Database access via JavaScript

CLUSTER WORLD
An Observatory in the Metaverse

LINK – Metaverse
- Astronomical Observation @ CLUSTER
LINK – Astronomical Information
LINK – Interest Space

CONTACT – We welcome your comments and feedback
- Twitter – ISO00TEN
- info@tinystarviewer.com
ADDITIONAL – Extras
- Large All-Sky Map – Based on the SAO Star Catalog
- STAR NAME EXTENDER (FOR BSC)
- STAR NAME LIST (IAU 2021)