R136a1

Measured

Distance

161,700 light-years

Constellation

Dorado

Position (J2000)

RA 5h 38m 42s, Dec −69.10°

How far, from the Sun

162,000 light-years. To cross it:

• Light162,000 years
• Voyager 1's speed2.87 billion years
• Driving at 100 km/h1.75 trillion years

Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.

Facts

• Recent estimates put its mass between about 150 and 215 times the Sun's.
• It is placed at the Large Magellanic Cloud's distance, measured from eclipsing binary stars.

Where this comes from

• Placed at the Large Magellanic Cloud's distance: Pietrzyński et al. 2019, eclipsing binaries (49.59 ± 0.55 kpc)
• This research has made use of the SIMBAD database, CDS, Strasbourg, France (Wenger et al. 2000, A&AS 143, 9).
• This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier).

Every catalogue Ouranos draws is credited on the credits page.