Proudy's Astrophotography with the GSTAR CCD Camera
unguided video astrophotography

NGC1672 Barred Spiral Galaxy
Constellation: Dorado (The Goldfish), Equatorial 2000: RA: 04h 45m 43s Dec: -59°14'52"
Distance: 60 million light years, Visual Magnitude: 9.7, Surface Brightness 13.5, Size: 6.7 x 5.6 arc mins
Transits at the end of twilight at 9:16pm 17th January, Elevation 63 degrees, due South


- click here to see an original unprocessed frame

- Imaged on 20100104
- 10" F/4.7 Newtonian Reflector
- 400 video frames with no IR/UV filter at x128 integration
- Bahtinov focusing mask
- rough polar alignment, no moon, good seeing, elevation about 60 degrees
- aligned and stacked in Registax 5.0
- midtones adjusted using the gamma function in Registax 5.0
- processed in Photoshop 7.0
- sharpened using Lucy Richardson deconvolution (curve width: 1, iterations: 2) in AstraImage 3.0SI