~7h total
Antlia ALP-T
Columbus, OH · Bortle 5
Antlia ALP-T
Columbus, OH · Bortle 5
The target
A detached bright region of the larger Heart Nebula (IC 1805) complex. At the scope's focal length it frames well on its own.
Processing
- Stacked in PixInsight (WBPP) with calibration frames
- StarXTerminator star removal
- BlurXTerminator deconvolution
- NoiseXTerminator noise reduction
Acquisition
| Type | Emission nebula |
| Constellation | Cassiopeia |
| Distance | 6,000 ly |
| Apparent magnitude | +11.4 |
| Apparent size | 27' × 13' |
| Integration | ~7h |
| Palette | HOO |
| Filters | Antlia ALP-T |
| Shot | Nov 2025 |
| From | Columbus, OH · Bortle 5 |
Equipment
| Telescope | 3D-printed 150mm f/5 Newtonian astrograph |
| Camera | ASI533MC Pro |
| Mount | Proxisky Umis20s |
| Filters | Antlia ALP-T |
| Guiding | SVBony 60mm guide scope · 22mm mini guide cam · PHD2 |