Astrodon 5nm Ha, 5nm OIII, 5nm SII
Ha, OIII, SII 8x15min each (1x1) Imager Temp -10C
Cropped for FramingLink to Larger JPEG
Listed in the 1959 catalog
by astronomer Stewart Sharpless
. About 8,000 light-years distant the nebula is popularly known as the Tulip Nebula. The star exciting the gas to glow is thought to be HD 227018
(TYC 2678-1231-1), the ninth magnitude star just to the upper left of the blue ionization front at the right of the tulip.
Data acquired 8-31-2010. Processed 9-1-2010.