WR-134
New Discovery | CHa-1
In my processing of this target, just at the very edge near the top of the frame, I noticed a very faint smudge of Oiii. After some further investigation I found the star, Gaia DR2 2059078897366154496, a white dwarf candidate star, directly in the center of the object. The nebula itself appears to be yet uncatalogued, not appearing in SIMBAD or HASH. The coordinates are: 20h 04' 10" +35° 36' 12". Note the blue-ish appearance of the white dwarf candidate in the following figure. Given it’s heavy Oiii emission signature, proximity to a white dwarf star, and roughly spherical morphology, I suppose that it is likely a Planetary Nebula.
Figure 1 | Processed HOO image with stars removed, centered on WD-Candidate star.
Figure 2 | Mouseover image showing HOO vs. RGB centered on the WD-Candidate star.
Acquisition
| Filter | Exposures | Integration |
|---|---|---|
| Oiii | 139 | 23.2 hr |
| Ha | 77 | 12.8 hr |
| Sii | 75 | 12.5 hr |
| Red | 49 | 4.1 hr |
| Green | 45 | 3.8 hr |
| Blue | 44 | 3.7 hr |
| Total | 60.0 hr |
