Arp 269
Awarded Astronomical Picture Of The Day by Astronomia.com apod.astronomia.com/wp-content/uploads/2021/05
Awarded Astronomical Picture Of The Day by Astronomia.com apod.astronomia.com/wp-content/uploads/2021/05
NGC 4490, also known as the Cocoon Galaxy, is a barred spiral galaxy in the constellation Canes Venatici. It is approximately 25 million light years from Earth. It interacts with its smaller companion NGC 4485 and as a result is a starburst galaxy. NGC 4490 and NGC 4485 are collectively known in the Atlas of Peculiar Galaxies as Arp 269.
It was discovered by William Herschel in 1788.
It was discovered by William Herschel in 1788.
TARGET
Nomenclature: Arp 269, The Cocoon Galaxy, NGC 4490, NGC 4485
Right Ascension: 12:30:35.0
Declination: +41:39:06.00
Discovery: William Herschel in 1788
EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
IMAGE CAPTURE
Luminance: 45x300 bin 1x1
Red: 13x300 bin 1x1
Green: 12x300 bin 1x1
Blue: 11x300 bin 1x1
Total integration: 6.7 hours
Pixel scale: 0.558 arcsec/pixel
Field radius: 0.181 degrees
Capture dates: 17-19 May 2021
Capture location: Fregenal de la Sierra, Spain
Luminance: 45x300 bin 1x1
Red: 13x300 bin 1x1
Green: 12x300 bin 1x1
Blue: 11x300 bin 1x1
Total integration: 6.7 hours
Pixel scale: 0.558 arcsec/pixel
Field radius: 0.181 degrees
Capture dates: 17-19 May 2021
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2