ACR Regions
1.2 million photometric stars
(around the celestial equator)

Download Section

• Additional SDB files back to

• Finder Charts showing sky coverage

• Object Type Reference Point

• Object Type Reference Line

• Read Me Text 

• Region Boundaries and Labels very handy! 5.71k
  boundaries are object type "Reference Line"!

• Searching for the Regions

• Region Labels 2.9k

• Regions A-B SDB 2 MB - 38,106 stars

• Regions C-D SDB 3.3 MB -  65,789 stars

• Regions E-F SDB 16 MB -  373,060 stars

• Regions G-H SDB 2.4 MB - 48,471 stars

• Regions I-J SDB 2.3 MB - 47,071 stars

• Regions K-L SDB 5.4 MB - 113,144 stars

• Region N 11.7 MB - 261,379 stars

• Regions O-P SDB 3.8 MB  75,612 stars

• How to ADD SDB files with TheSky

Finder Charts showing sky coverage

Note the use of " Reference Lines"

• Finder Chart for A and B

• Finder Chart for C and D

• Finder Chart for E and F

• Finder Chart for G and H

• Finder Chart for I and J

• Finder Chart for K and L

• Finder Chart for N

• Finder hart for O and P

Searching for Regions

By using the above Region Boundaries and labels you can plot the area covered and name quickly and easily WITHOUT plotting the data itself.  Then Enable and Disable those you wish to use as necessary.  These datasets are quite large and can be very slow to plot because they have not been optimized for TheSky as of yet!

Edit | Find

Regions located under Sky Databases (SDBs)

Object Type Reference Point

NOTE:  All of the above files have been compiled as object type "Reference Point"!  They must be enabled to see them. View |  Display Explorer type in "Reference Point" and place a check in the box.

Enable Reference Point

View | Display Explorer

Object type Reference Line

When using the boundary lines they are of type "Reference Lines" not Reference Point.  Make sure they too are enabled.