NGC-40
Image details:
This small planetary Nebula also named Caldwell 2 is showing a nice texture of red hydrogen, a round blueish core and two much fainter extensions opposite to each other.
The star has ejected its outer layer which has left behind a smaller, hot star with a temperature on the surface of about 50,000 degree C. Radiation from the star causes the shed outer layer to heat to about 10,000 degree C and is about one light-year across.
The nebula is located 3.700 light years away in the constellation of Cepheus.
Technical details:
Optics: 8'' inch SCT
Mount: Celestron AVX.
Camera: Canon 60D prim focused
Guiding: no guiding
Date: August 21-2016
Location: My backyard observatory in Northwest Missouri
Exposure details: 5x180sec ISO-2000 RAW
Processing: Images Plus (TRNT, combined-average) Photoshop CS5 (levels, Highpass filter)
This small planetary Nebula also named Caldwell 2 is showing a nice texture of red hydrogen, a round blueish core and two much fainter extensions opposite to each other.
The star has ejected its outer layer which has left behind a smaller, hot star with a temperature on the surface of about 50,000 degree C. Radiation from the star causes the shed outer layer to heat to about 10,000 degree C and is about one light-year across.
The nebula is located 3.700 light years away in the constellation of Cepheus.
Technical details:
Optics: 8'' inch SCT
Mount: Celestron AVX.
Camera: Canon 60D prim focused
Guiding: no guiding
Date: August 21-2016
Location: My backyard observatory in Northwest Missouri
Exposure details: 5x180sec ISO-2000 RAW
Processing: Images Plus (TRNT, combined-average) Photoshop CS5 (levels, Highpass filter)
