Connections
astronomy
Entity
light
Entity
galaxy
Entity
International Standard Book Number
Entity
radius
Entity
digital object identifier
Entity
globular cluster
Entity
open cluster
Entity
bibcode
Entity
elliptical galaxy
Entity
Q118398
Entity
contour line
Entity
Q22908627
Entity
surface brightness
Entity
point spread function
Entity
Airy disk
Entity
De Vaucouleurs' law
Entity
Sersic profile
Entity
circular symmetry
Entity