Abell 35 (= PK 303+40.1 or Sh2-313) is located in the constellation Hydra. According to Cartes du Ciel the apparent size is 768 x 768 arcsec. In the center is a binary system with an extremely hot white dwarf (> 150,000 °C). In the OIII image, a bow shock is clearly visible that suggests that the binary system traverses the interstellar medium with supersonic speed. Apparently this is not a classic planetary nebula.
Takahashi FSQ 106
ZWO ASI2600MC Pro
STC Duo Narrowband Filter
Tijarafe, 08., 12. und 14.05.2021
110 x 5 min = 9 h 10 min
Unfortunately, one night there was very bad seeing.
This is an image section, resampled to 50 %:
The whole image can be viewed here: Abell 35
Bernd
Takahashi FSQ 106
ZWO ASI2600MC Pro
STC Duo Narrowband Filter
Tijarafe, 08., 12. und 14.05.2021
110 x 5 min = 9 h 10 min
Unfortunately, one night there was very bad seeing.
This is an image section, resampled to 50 %:
The whole image can be viewed here: Abell 35
Bernd
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