Peter Goodhew
Kohoutek 1-16
Kohoutek 1-16 (K 1-16) is a planetary nebula in the constellation Draco. It has very low surface brightness, and is around 7,000 light year from Earth.
It's central progenitor star is a very hot (over 80,000 K) pulsating variable white dwarf called DS Dra. The dominant pulsating period is 28.3 minutes.
The nebula has a diameter of 1.6 arcmin.
Immediately below, and very slightly offset to the left of K1-16 is a bright (14th mag) blue star which is quasar KUV 18217+6419, one of the brightest objects of this type in the sky. It is around 3.4 billion light years away.
Image captured on my remote dual rig at Fregenal de la Sierra in Spain between 6 March and 19 April 2022.
Scopes: APM TMB LZOS 152 Refractors
Cameras: QSI6120wsg8
Mounts: 10Micron GM2000 HPS
A total of 51 hours 55 minutes image capture (HaOIIIRGB)
Kohoutek 1-16
Kohoutek 1-16 (K 1-16) is a planetary nebula in the constellation Draco. It has very low surface brightness, and is around 7,000 light year from Earth.
It's central progenitor star is a very hot (over 80,000 K) pulsating variable white dwarf called DS Dra. The dominant pulsating period is 28.3 minutes.
The nebula has a diameter of 1.6 arcmin.
Immediately below, and very slightly offset to the left of K1-16 is a bright (14th mag) blue star which is quasar KUV 18217+6419, one of the brightest objects of this type in the sky. It is around 3.4 billion light years away.
Image captured on my remote dual rig at Fregenal de la Sierra in Spain between 6 March and 19 April 2022.
Scopes: APM TMB LZOS 152 Refractors
Cameras: QSI6120wsg8
Mounts: 10Micron GM2000 HPS
A total of 51 hours 55 minutes image capture (HaOIIIRGB)