Arp 297
Some intergalactic mayhem caused by gravitational interaction.
Arp 297 is a quartet of galaxies, consisting of NGC 5752, NGC 5753, NGC 5754 and NGC 5755, which looks like a compact group but actually consists of two galaxy pairs at quite different distances, located in the constellation of Boötes.
NGC 5754 and NGC 5752, both barred spiral galaxies, lie at a distance of roughly 200 million light-years (while NGC 5753, a spiral galaxy, and NGC 5755, a huge barred spiral, lie much further away at distances of about 450 million light-years).
The internal structure of NGC 5754 (about 75 thousand light-years across) has hardly been disturbed by the encounter whereas gravitational interaction between these two galaxies has produced a long tidal tail (of about 275,000 light-years long) extending from NGC 5752.
Arp 297 is a quartet of galaxies, consisting of NGC 5752, NGC 5753, NGC 5754 and NGC 5755, which looks like a compact group but actually consists of two galaxy pairs at quite different distances, located in the constellation of Boötes.
NGC 5754 and NGC 5752, both barred spiral galaxies, lie at a distance of roughly 200 million light-years (while NGC 5753, a spiral galaxy, and NGC 5755, a huge barred spiral, lie much further away at distances of about 450 million light-years).
The internal structure of NGC 5754 (about 75 thousand light-years across) has hardly been disturbed by the encounter whereas gravitational interaction between these two galaxies has produced a long tidal tail (of about 275,000 light-years long) extending from NGC 5752.
TARGET
Nomenclature: Arp 297, NGC 5752, NGC 5753, NGC 5754, NGC 5755
Right Ascension: 14:45:17
Declination: 38:45:32
Discovery: Apr 1, 1878 by Lawrence Parsons, 4th Lord Rosse
EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
IMAGE CAPTURE
Luminance: 123x300 bin 1x1
Red: 12x300 bin 1x1
Green: 12x300 bin 1x1
Blue: 12x300 bin 1x1
Total integration: 13.2 hours
Pixel scale: 0.265 arcsec/pixel
Field radius: 0.188 degrees
Capture dates: 19-20 April 2021
Capture location: Fregenal de la Sierra, Spain
Luminance: 123x300 bin 1x1
Red: 12x300 bin 1x1
Green: 12x300 bin 1x1
Blue: 12x300 bin 1x1
Total integration: 13.2 hours
Pixel scale: 0.265 arcsec/pixel
Field radius: 0.188 degrees
Capture dates: 19-20 April 2021
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2