skyandtelescope.com • JUNE 2019 77BLUE ROSE
Wanda Conde
The Rosette Nebula, NGC 2237, takes
on an unusual color palette of blues,
yellows, and oranges when imaged
through narrowband fi lters.
DETAILS:Orion ED80T Triplet Apo-
chromatic refractor with ZWO
ASI1600MM CMOS camera. Total
exposure: 12 hours through Astronomik
Hα, S II, and O III fi lters.