WISE J1206+8401
{{short description|WISE J1206+8401 is a brown dwarf in the constellation Camelopardalis.}}
{{Starbox begin
| name = WISE J1206+8401
}}
{{Starbox image
| image = 250px
| caption = WISE J1206+8401 with NIRCam (faint orange "star" in the center), the blue extended region on the lower-right is detector noise
}}
{{Starbox observe
| epoch = J2000
| equinox = J2000
| constell = Camelopardalis
| ra = {{RA|12|06|08.19}}
| dec ={{Dec|+84|01|13.10}}
}}
{{Starbox character
| type = brown dwarf
}}
{{Starbox astrometry
| prop_mo_ra = -577.5 ±1.0
| prop_mo_dec = -263.1 ±0.8
| parallax = 84.7
| p_error = 2.1
}}
{{Starbox detail
| mass_mj = 6−14 {{jupiter mass}}
17 ±5
| luminosity_bolometric = 10-6.298 ± 0.023
| temperature = {{val|499|14|24}}
}}
{{Starbox catalog
| names = CNS5 2967, WISEA J120604.25+840110.5, WISE J120604.38+840110.6
}}
{{Starbox reference
| Simbad =WISEA+J120604.25%2B840110.5
}}
{{starbox end}}
WISE J1206+8401 (WISE J120604.38+840110.6, WISE 1206+8401) is a brown dwarf or planetary-mass object, discovered in 2015 with WISE and the Hubble Space Telescope. It has the spectral type Y0.
The object was found to be metal-rich in a work from 2017 and the research team found a mass of 6−14 {{jupiter mass|link=true}}. A later work from 2023 found a mass of 17 ±5 {{jupiter mass}}. A 2024 study observed it with JWST, using NIRSpec and MIRI spectroscopy, which concluded a mass of either 1.9 or 11.2 {{jupiter mass|link=true}} (using two different models). This object is not discussed in detail in this work, but the researchers report the detection of molecular absorption features in their sample, including water vapor, methane, ammonia, carbon monoxide and carbon dioxide. None of their objects have any detection of phosphine. One paper mentions that WISE J1206+8401 does have deeper carbon dioxide and carbon monoxide features, when compared to other Y-dwarfs. This makes this Y-dwarf similar to CWISEP J1047+5457.