WOH G64
Sign in to savered hypergiant star in the constellation Dorado, possibly the largest well-defined star known by radius
In the Vinony graph
Within Vinony's link graph, WOH G64 is referenced by 199 other articles, and connects out to list of most luminous stars, Astronomy and Astrophysics and year.
It is catalogued under topics including B(e) stars, Binary stars and B-type stars.
Its subject is documented across 35 Wikipedia language editions.
Astronomical data · SIMBAD
- Object type
- Mi*
- Spectral type
- M7.5(I)e
- Coordinates
- RA 73.7938° · Dec -68.3417°
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Dorado
- Right ascension
- 04 55 10.5252
- Declination
- −68 ° 20 ′ 29.998 ″
- Apparent magnitude v
- 17.7–18.8
- Evolutionary stage
- OH/IR extreme red supergiant or red hypergiant
- Spectral type
- M5I –M7.5e
- Variable type
- Slow irregular variable + symbiotic
via Wikipedia infobox
Wikidata facts
- Part of
- Large Magellanic Cloud
- Constellation
- Dorado
- Diameter
- 2140000000
- Radius
- 1730
- Variable-star type
- long-period variable star
- Image
- WOH G64 Particular.jpg
Show 9 more facts
- Commons category
- WOH G64
- spectral class
- M5
- catalog code
- Gaia DR2 4661527262798576768
- right ascension
- 73.79385513082030
- declination
- -68.34166624171350
- apparent magnitude
- 6.849
- epoch
- J2000.0
- right ascension component of proper motion
- 1.108
- declination component of proper motion
- -1.348
via Wikidata · CC0
~10 min read
Encyclopedic overview
WOH G64 (IRAS 04553–6825) is a symbiotic binary in the Large Magellanic Cloud, roughly 50 kiloparsecs (163,000 light-years) from Earth.
The primary component is an extreme red supergiant or red hypergiant that may be the largest known star with a well-defined radius, calculated to be around 1,540 times that of the Sun (R☉). At this radius, an object travelling at the speed of light would take over 6 hours to go around its surface, compared to just 14.5 seconds for the Sun. It is also one of the most luminous and massive red supergiants, with a luminosity around 282,000 times the solar luminosity (L☉) and a mass roughly 20 times that of the Sun (M☉). If placed at the center of the Solar System, the star's photosphere would engulf the orbit of Jupiter. The secondary component, being recently confirmed, is comparatively nowhere near as well-studied but it is at least understood to be a B-type star.
Excerpted from Wikipedia’s “WOH G64” article, available under the CC BY-SA 4.0 licence.