Arp 227
BBC The Sky At Night Image Gallery October 2019
Hampshire Astronomical Group Picture Of The Month October 2019
BBC The Sky At Night Image Gallery October 2019
Hampshire Astronomical Group Picture Of The Month October 2019
An unusual group of galaxies in the constellation Pisces. The largest galaxy is NGC 474. It is 100 million light years from Earth and about 250,000 light years across. It's complex shell structure is believed to be the result of gravitational interaction between galaxies.
TARGET
Nomenclature: Arp 227, NGC 454
Right Ascension: 01:19:37
Declination: +03:20:13
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
Luminance: 54x1800 bin 1x1
Red: 54x300 bin 2x2
Green: 64x300 bin 2x2
Blue: 63x300 bin 2x2
Total integration: 42.1 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.364 degrees
Capture dates: 8 August - 27 September 2019
Capture location: Fregenal de la Sierra, Spain
Luminance: 54x1800 bin 1x1
Red: 54x300 bin 2x2
Green: 64x300 bin 2x2
Blue: 63x300 bin 2x2
Total integration: 42.1 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.364 degrees
Capture dates: 8 August - 27 September 2019
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2