H 3-75
H 3-75 (also known as Haro 6-75 and PNG 193.6-09.5) is a tiny planetary nebula in the constellation Orion. At 31 arc seconds this is without a doubt the tiniest target I have ever attempted, and a real challenge for 6-inch aperture scopes. This is the first amateur image to reveal the outer halo, which is significantly larger than 31 arc seconds.
The outer halo around this planetary nebula was initially discovered by the Galactic Planetary Nebula Halo Survey (GPNHS) team (a collaboration of some of the world's best astrophotographers led by Sakib Rasool) in January 2019.
HASH entry: 202.189.117.101:8999/gpne/objectInfoPage.php?id=723
The outer halo around this planetary nebula was initially discovered by the Galactic Planetary Nebula Halo Survey (GPNHS) team (a collaboration of some of the world's best astrophotographers led by Sakib Rasool) in January 2019.
HASH entry: 202.189.117.101:8999/gpne/objectInfoPage.php?id=723
TARGET
Nomenclature: H 3-75, Haro 6-75, PK 193-09 1, PN G193.6-09.5
Right Ascension: 05:40:45.00
Declination: +12:21:23.26
Size: 31 arc sec (halo is 1.75 arc mins)
Discovery: Guillermo Haro in 1953 (halo: Sakib Rasool in 2019)
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
Nomenclature: H 3-75, Haro 6-75, PK 193-09 1, PN G193.6-09.5
Right Ascension: 05:40:45.00
Declination: +12:21:23.26
Size: 31 arc sec (halo is 1.75 arc mins)
Discovery: Guillermo Haro in 1953 (halo: Sakib Rasool in 2019)
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
Blue: 9x300"
Green: 9x300"
Lum: 17x300"
Red: 9x300"
Ha: 63x900 bin 1x1
OIII 53x900 bin 1x1, 17x900 bin 4x4
Total Integration: 36.9 hours
Pixel scale: 0.267 arcsec/pixel
Field radius: 0.370 degrees
Capture dates: 10 - 25 November 2020
Capture location: Fregenal de la Sierra, Spain
Blue: 9x300"
Green: 9x300"
Lum: 17x300"
Red: 9x300"
Ha: 63x900 bin 1x1
OIII 53x900 bin 1x1, 17x900 bin 4x4
Total Integration: 36.9 hours
Pixel scale: 0.267 arcsec/pixel
Field radius: 0.370 degrees
Capture dates: 10 - 25 November 2020
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