Sh2-188
Sh2 is a planetary nebula in the constellation Cassiopeia. It is 702 arc seconds in diameter and approximately 800 light years away. It is unusual in that it is moving through space at high velocity, and colliding with the interstellar medium, resulting in bow shock waves at the front of its direction of movement.
TARGET
Nomenclature: Sh2-188, Sharpless 188, Simeis 22, Dolphin Nebula
Right Ascension: 01:30:20
Declination: +58:26:29
Size: 702 arc sec
Discovery: Stewart Sharpless
EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
Nomenclature: Sh2-188, Sharpless 188, Simeis 22, Dolphin Nebula
Right Ascension: 01:30:20
Declination: +58:26:29
Size: 702 arc sec
Discovery: Stewart Sharpless
EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
IMAGE CAPTURE
5nm Ha: 58x900 bin 1x1, 72x600 bin 1x1
3nm OIII: 95x900 bin 1x1, 26x600 bin 1x1
Red: 20x300 bin 1x1
Green: 20x300 bin 1x1
Blue: 19x300 bin 1x1
Total integration: 59 hours 30 minutes
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.376 degrees
Capture dates: 5-18 Octobert 2022
Capture location: Fregenal de la SIerra, Spain
5nm Ha: 58x900 bin 1x1, 72x600 bin 1x1
3nm OIII: 95x900 bin 1x1, 26x600 bin 1x1
Red: 20x300 bin 1x1
Green: 20x300 bin 1x1
Blue: 19x300 bin 1x1
Total integration: 59 hours 30 minutes
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.376 degrees
Capture dates: 5-18 Octobert 2022
Capture location: Fregenal de la SIerra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Ha image
OIII image
