Merge pull request #102 from Carifio24/astropy-v6

Update import location for astropy v6

glue_wwt/viewer/utils.py

@@ -3,7 +3,10 @@
 import numpy as np
 
 from astropy import units as u
-from astropy.coordinates.angle_utilities import angular_separation
+try:
+    from astropy.coordinates import angular_separation
+except ImportError:
+    from astropy.coordinates.angle_utilities import angular_separation
 from astropy.coordinates.representation import UnitSphericalRepresentation
 
 __all__ = ['center_fov']