Rudy in Ottawa
Neowise Comet 2020 over Ottawa
Click on image twice to enlarge it.
I used various layer blends in Photoshop to bring out the colours and show the different sections of the comet from the core through to the tail.
This is an image of 20 shots stacked together in DeepSky Stacker, an astrophotography program.
Camera: NIkon D5500
Lens: AF-P DX NIKKOR 70-300mm f/4.5-6.3G ED VR
Focal length: 300mm
Exposure: 4 seconds (x20 images for total of 80 seconds)
Aperture: f6.3
ISO 5000
Processing: DeepSky Stacker, Photoshop CS5.1
As a comet gets closer to the Sun, some of these frozen gases in the core sublimate creating the coma – the envelope of atmosphere that surrounds a comet. These gases can reflect sunlight and turn this normally dark object into a bright, yellow-white body. One of the two tails a comet produces, the ion tail – a collection of charged particles pushed away by the solar wind – will begin to glow with a blue tint.
Neowise Comet 2020 over Ottawa
Click on image twice to enlarge it.
I used various layer blends in Photoshop to bring out the colours and show the different sections of the comet from the core through to the tail.
This is an image of 20 shots stacked together in DeepSky Stacker, an astrophotography program.
Camera: NIkon D5500
Lens: AF-P DX NIKKOR 70-300mm f/4.5-6.3G ED VR
Focal length: 300mm
Exposure: 4 seconds (x20 images for total of 80 seconds)
Aperture: f6.3
ISO 5000
Processing: DeepSky Stacker, Photoshop CS5.1
As a comet gets closer to the Sun, some of these frozen gases in the core sublimate creating the coma – the envelope of atmosphere that surrounds a comet. These gases can reflect sunlight and turn this normally dark object into a bright, yellow-white body. One of the two tails a comet produces, the ion tail – a collection of charged particles pushed away by the solar wind – will begin to glow with a blue tint.