- Organization
-
IAU Double Star Center
- WDS Description
-
WDS Catalog
- WDS Catalog: Full
- WDS Catalog: 00-05 Hour Section
- WDS Catalog: 06-11 Hour Section
- WDS Catalog: 12-17 Hour Section
- WDS Catalog: 18-23 Hour Section
- WDS Catalog With Precise Last Only
- WDS Catalog As An SQL Database (Original Code, Danley Hsu; Improved Code, Damien Mattei)
- WDS With Constellation And Bayer/Flamsteed Designation (When Applicable) Appended
- Format Of The Current WDS
- Notes File For The WDS
- References And Discoverer Codes
-
WDS Supplemental Catalog
- WDS Supplemental Catalog: Explanatory file
- WDS Supplemental Catalog: Summary
- WDS Supplemental Catalog: 00-05 Hour Section (All Data)
- WDS Supplemental Catalog: 06-11 Hour Section (All Data)
- WDS Supplemental Catalog: 12-17 Hour Section (All Data)
- WDS Supplemental Catalog: 18-23 Hour Section (All Data)
- WDS Supplemental Catalog: Format Of Files
- IAU Commission G1
-
Sixth Catalog Of Orbits Of Visual Binary Stars
- Full Page
- Introduction
- Orbit Grading Method
- Description Of The Catalog
- Catalog statistics
- Acknowledgments And References
- Orbital Elements: Html
- Orbital Elements: Text
- Orbital Elements: SQL
- Ephemerides:Html
- Ephemerides:Text
- Notes:Html
- Notes:Text
- References:Html
- References:Text
- Orbital Elements: Frame Version
- Formats Of Elements And Ephemerides Files
- Calibration Candidates
- Top 25 Orbit Calculators
- Master File Database
- Catalog Of Rectilinear Elements
- Fourth Catalog Of Interferometric Measurements Of Binary Stars
- The Delta-M Catalog
- IERS ICRS Center
- IVS (VLBI) Analysis Center
- IVS (VLBI) Analysis Center for Source Structure
-
Data Products
- Overview
-
IAU Double star center
- Overview
-
WDS Catalog
- WDS Catalog: Full
- WDS Catalog: 00-05 Hour Section
- WDS Catalog: 06-11 Hour Section
- WDS Catalog: 12-17 Hour Section
- WDS Catalog: 18-23 Hour Section
- WDS Catalog With Precise Last Only
- WDS Catalog As An SQL Database (Original Code, Danley Hsu; Improved Code, Damien Mattei)
- WDS With Constellation And Bayer/Flamsteed Designation (When Applicable) Appended
- Format Of The Current WDS
- Notes File For The WDS
- References And Discoverer Codes
-
WDS Supplemental Catalog
- WDS Supplemental Catalog: Explanatory file
- WDS Supplemental Catalog: Summary
- WDS Supplemental Catalog: 00-05 Hour Section (All Data)
- WDS Supplemental Catalog: 06-11 Hour Section (All Data)
- WDS Supplemental Catalog: 12-17 Hour Section (All Data)
- WDS Supplemental Catalog: 18-23 Hour Section (All Data)
- WDS Supplemental Catalog: Format Of Files
-
Sixth Catalog Of Orbits Of Visual Binary Stars
- Full Page
- Introduction
- Orbit Grading Method
- Description Of The Catalog
- Catalog statistics
- Acknowledgments And References
- Orbital Elements: Html
- Orbital Elements: Text
- Orbital Elements: SQL
- Ephemerides:Html
- Ephemerides:Text
- Notes:Html
- Notes:Text
- References:Html
- References:Text
- Orbital Elements: Frame Version
- Formats Of Elements And Ephemerides Files
- Calibration Candidates
- Top 25 Orbit Calculators
- Master File Database
- Catalog Of Rectilinear Elements
- Fourth Catalog Of Interferometric Measurements Of Binary Stars
- The Delta-M Catalog
- FRIDA
- 24 Hour Sessions
- UT1-UTC
- Global Solutions
Publications
Astronomers in the Celestial Reference Frame Department make key contributions to a wide range of topics in astrophysics and astrometry. For the most up-to-date list of peer-reviewed, scientific publications made by CRF researchers, use the links below.
Celestial Reference Frame Department, USNO
3450 Massachusetts Ave NW,
Washington, DC 20392
3450 Massachusetts Ave NW,
Washington, DC 20392
Regular website maintenance is scheduled for
Thursdays from 3-5pm Eastern Time, during
which time the website may be unavailable.
Thursdays from 3-5pm Eastern Time, during
which time the website may be unavailable.