Neutron star

SGR 1935+2154

Also SGR J1935+2154

A magnetar — a neutron star with an enormous magnetic field — that in 2020 gave off the first fast radio burst seen from inside the Milky Way.

Measured

Distance
about 21,530 light-years (published estimates 19,240–23,810)
Constellation
Vulpecula
Position (J2000)
RA 19h 34m 56s, Dec +21.90°

How far, from the Sun

About 21,500 light-years. To cross it:

  • Light21,500 years
  • Voyager 1's speed383 million years
  • Driving at 100 km/h232 billion years

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

Facts

  • Its 2020 radio burst linked fast radio bursts to magnetars.

How it was found

  • NASA's Swift satellite discovered it in 2014.

Where this comes from

  • Zhou et al. 2020, ApJ 905, 99 (6.6 ± 0.7 kpc); Kothes et al. 2018 (ApJ 852, 54) argued for a larger distance
  • 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.