NEW DISCOVERY: Strottner-Drechsler 163 (StDr 163)
Strottner-Drechsler 163 / PNG 184.4+05.4
This candidate planetary nebula was discovered by our team in August 2022.
StDr 163 in the constellation Gemini is without doubt one of the most beautiful objects in the StDr catalogue.
The remarkable aspect of this nebula is that we can literally watch the structure expand.
The hot star in the centre is surrounded by a constantly growing envelope of ionised oxygen (OIII).
Gently, the blue OIII core breaks through the red cocoon of ionised hydrogen (H-alpha).
It is not known whether the reddish halo area around the nebula, which resembles two wings, belongs to the object itself, or whether it is interstellar material that is ionised and excited to glow by the potential white dwarf in the centre.
Discovery by my amazing friends Xavier Strottner and Marcel Drechsler. Data capture by myself and Sven Eklund. Image processing by Marcel Drechsler.
Coordinates : 06:17:16.19 +27:46:36.91 (J2000)
Constellation : Gemini
Size : 4 arcmin (minimum)
Data on the central hot star
- WDJ061716.18+274636.77 (GAIA white dwarf candidat)
- Hot Subdwarf
- Distance : 1329 parsec (+/-315 866)
- parallaxe : 0.8 - 1.0
- Magnitude : 18.9182000
- pm RA 1.96 / DEC -2.49
- pWD : 97,4360 %
This candidate planetary nebula was discovered by our team in August 2022.
StDr 163 in the constellation Gemini is without doubt one of the most beautiful objects in the StDr catalogue.
The remarkable aspect of this nebula is that we can literally watch the structure expand.
The hot star in the centre is surrounded by a constantly growing envelope of ionised oxygen (OIII).
Gently, the blue OIII core breaks through the red cocoon of ionised hydrogen (H-alpha).
It is not known whether the reddish halo area around the nebula, which resembles two wings, belongs to the object itself, or whether it is interstellar material that is ionised and excited to glow by the potential white dwarf in the centre.
Discovery by my amazing friends Xavier Strottner and Marcel Drechsler. Data capture by myself and Sven Eklund. Image processing by Marcel Drechsler.
Coordinates : 06:17:16.19 +27:46:36.91 (J2000)
Constellation : Gemini
Size : 4 arcmin (minimum)
Data on the central hot star
- WDJ061716.18+274636.77 (GAIA white dwarf candidat)
- Hot Subdwarf
- Distance : 1329 parsec (+/-315 866)
- parallaxe : 0.8 - 1.0
- Magnitude : 18.9182000
- pm RA 1.96 / DEC -2.49
- pWD : 97,4360 %
TARGET
Nomenclature: StDr 163
Right Ascension: 06:17:16.19
Declination: +27:46:36.91
Size: 4 arc minutes
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors, Celestron EdgeHd 14"
10Micron GM2000 HPS mount, 10Micron GM3000 HPS mount
Twin QSI6120 CCD cameras, ZWO ASI6200M Pro
Nomenclature: StDr 163
Right Ascension: 06:17:16.19
Declination: +27:46:36.91
Size: 4 arc minutes
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors, Celestron EdgeHd 14"
10Micron GM2000 HPS mount, 10Micron GM3000 HPS mount
Twin QSI6120 CCD cameras, ZWO ASI6200M Pro
IMAGE CAPTURE
Blue: 30x300"
Green: 31x300"
Red: 32x300"
Ha: 62x900" bin 1x1, 150x300 bin 2x2
OIII: 92x900" bin 1x1, 215x300" bin 2x2
Total Integration: 76 hours 40 minutes
Pixel scale: 0.531 arcsec/pixel
Field radius: 0.208 degrees
Capture dates:22 August - 28 September 2022
Capture location: Fregenal de la Sierra, Spain
Blue: 30x300"
Green: 31x300"
Red: 32x300"
Ha: 62x900" bin 1x1, 150x300 bin 2x2
OIII: 92x900" bin 1x1, 215x300" bin 2x2
Total Integration: 76 hours 40 minutes
Pixel scale: 0.531 arcsec/pixel
Field radius: 0.208 degrees
Capture dates:22 August - 28 September 2022
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING:
PixInsight and Photoshop
PixInsight and Photoshop