Hu 7
This is the first image of Hu 7 - a candidate planetary nebula discovered by French amateur astronomer Laurent Huet in January 2019. Although registered as 5 arc minutes in size, this deep image reveals a much larger faint southern region. The brighter northen region, and off-centre CSPN, suggests that the CSPN has been moving north and the nebula has been interacting with the interstellar medium.
TARGET
Nomenclature: Hu 7, PNG 077.0+10.7
Right Ascension: 19:38:19.16
Declination: +43:52:44.70
Size: 5 arc minutes (core)
Discovery: Laurent Huet
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
OIII 3nm: 55x900 bin 1x1
Ha: 55x900 bin 1x1
Red: 20x300 bin 1x1
Green: 20x300 bin 1x1
Blue: 19x300 bin 1x1
Total integration: 32 hours 25 minutes
Pixel scale: 0.531 arcsec/pixel
Field radius: 0.345 degrees
Capture dates: 13-29 May 2023
Capture location: Fregenal de la Sierra, Spain
OIII 3nm: 55x900 bin 1x1
Ha: 55x900 bin 1x1
Red: 20x300 bin 1x1
Green: 20x300 bin 1x1
Blue: 19x300 bin 1x1
Total integration: 32 hours 25 minutes
Pixel scale: 0.531 arcsec/pixel
Field radius: 0.345 degrees
Capture dates: 13-29 May 2023
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:
