VARIABLE STAR DH DRACONIS AND GALAXY NGC 3147
The variable star DH Draconis is the yellow-orange star to the left and slightly above spiral galaxy NGC 3147. DH Draconis is a Mira variable with a period of 550 days.
This image was made by combining one 3-minute red exposure, one 6-minute green exposure, and one 10-minute blue exposure.
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