~10h total
Antlia ALP-T
Columbus, OH · Bortle 5
Antlia ALP-T
Columbus, OH · Bortle 5
The target
A wide-field H-II region that looks like a bird with its wings spread. The head is IC 2177 proper; the wings trail out over several degrees.
Processing
- Stacked in PixInsight (WBPP) with calibration frames
- StarXTerminator star removal
- BlurXTerminator deconvolution
- NoiseXTerminator noise reduction
Acquisition
| Type | Emission nebula |
| Constellation | Monoceros / Canis Major |
| Distance | 3,800 ly |
| Apparent magnitude | +7.5 |
| Apparent size | 120' × 40' |
| Integration | ~10h |
| Palette | HOO |
| Filters | Antlia ALP-T |
| Shot | Mar 2026 |
| 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 |