Abell 20 with FP J0721+0133
FP J0721+0133 (aka PN G215.0+07.4) was discovered as part of the MASH survey of planetary nebulae around 2004.
However it was subsequently redesignated as ionised interstellar medium. Recently I was imaging it, alongside its brighter companion Abell 20, which is a true PN. This revealed [OIII] emission in FP J07221+133. As a result FP J07221+133 has now been reclassified as a possible PN, pending deeper imaging, spectra, and the identification of a hot white dwarf progenitor.
However it was subsequently redesignated as ionised interstellar medium. Recently I was imaging it, alongside its brighter companion Abell 20, which is a true PN. This revealed [OIII] emission in FP J07221+133. As a result FP J07221+133 has now been reclassified as a possible PN, pending deeper imaging, spectra, and the identification of a hot white dwarf progenitor.
TARGET
Nomenclature: FP J0721+0133, PN G215.0+07.4, Abell 20
Right Ascension: 07:21:41.04
Declination: +01:33:28.8
Size: 12 arc minutes
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QHYCCD QHY268 MM Pro cameras
Nomenclature: FP J0721+0133, PN G215.0+07.4, Abell 20
Right Ascension: 07:21:41.04
Declination: +01:33:28.8
Size: 12 arc minutes
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QHYCCD QHY268 MM Pro cameras
IMAGE CAPTURE
Ha 5nm: 200x300" bin 1x1
OIII 3nm: 198x300" bin 1x1
Red: 21x300" bin 1x1
Green: 20x300" bin 1x1
Blue: 20x300" bin 1x1
Total integration: 38 hours 15 minutes
Pixel scale: 0.647 arcsec/pixel
Field radius: 0.571 degrees
Capture dates: 27 February - 6 March 2024
Capture location: Fregenal de la Sierra, Spain
Ha 5nm: 200x300" bin 1x1
OIII 3nm: 198x300" bin 1x1
Red: 21x300" bin 1x1
Green: 20x300" bin 1x1
Blue: 20x300" bin 1x1
Total integration: 38 hours 15 minutes
Pixel scale: 0.647 arcsec/pixel
Field radius: 0.571 degrees
Capture dates: 27 February - 6 March 2024
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: Pixinsight, CCDStack2
Post-processing: Pixinsight, Photoshop CS2
Pre-processing: Pixinsight, CCDStack2
Post-processing: Pixinsight, Photoshop CS2