76 AUSTRALIAN SKY & TELESCOPE July 2019
GALLERY
Astrophotos from our readers
NEBULA LOCK José Joaquín Pérez
The famous Keyhole is a dark nebula that appears to have
beencarvedoutoftheCarinaNebula.In fact,it’sonlya
foregrounddustandgascloudsilhouettedagainstthe
brighterbackground.ForthisshotJoséuseda corrected
30-cmf/3.8NewtonianAstrograph,MoravianG3-16200
cameraandH-alpha,SII,OIIIandLRGBfilters.Total
exposuretimewas 32 hours!