~5h total
Antlia ALP-T
Columbus, OH · Bortle 5
Antlia ALP-T
Columbus, OH · Bortle 5
The target
A dying star's expelled envelope, lit from within by a white dwarf. The OIII shell extends well beyond the bright dumbbell shape in deep exposures.
Processing
- Stacked in PixInsight (WBPP) with calibration frames
- StarXTerminator star removal
- BlurXTerminator deconvolution
- NoiseXTerminator noise reduction
Acquisition
| Type | Planetary nebula |
| Constellation | Vulpecula |
| Distance | 1,360 ly |
| Apparent magnitude | +7.5 |
| Apparent size | 8' × 6' |
| Integration | ~5h |
| Palette | HOO |
| Filters | Antlia ALP-T |
| Shot | Aug 2025 |
| From | Columbus, OH · Bortle 5 |
Equipment
| Telescope | 3D-printed 114mm f/4 Newtonian astrograph |
| Camera | ASI533MC Pro |
| Mount | Proxisky Umis20s |
| Filters | Antlia ALP-T |
| Guiding | SVBony 60mm guide scope · 22mm mini guide cam · PHD2 |