2019-06-01+Sky+and+Telescope

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skyandtelescope.com • JUNE 2019 77

BLUE 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.

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