Supernova remnant
Tycho's Supernova Remnant
Also SN 1572 · 3C 10
The remains of a white dwarf star that blew itself apart, seen from Earth as a new star in 1572.
Measured
- Distance
- about 8,900 light-years (published estimates 8,000–9,800)
- Size
- about 20 light-years across (approximate)
- Constellation
- Cassiopeia
- Position (J2000)
- RA 0h 25m 18s, Dec +64.15°
How far, from the Sun
About 8,900 light-years. To cross it:
- Light8,900 years
- Voyager 1's speed158 million years
- Driving at 100 km/h96.1 billion years
Voyager 1 at the speed it moved outward over the year to 2026-10-25 (JPL Horizons). Driving: nonstop, never refuelling.
Facts
- Tycho Brahe observed the supernova from November 1572; at its peak it rivalled Venus.
- Light echoes from the blast confirmed in 2008 that it was a Type Ia supernova.
- It helped overturn the old idea that the starry heavens never change.
Where this comes from
- Tian & Leahy 2011, ApJ 729, L15 (kinematic distance 2.5–3.0 kpc)
Every catalogue Ouranos draws is credited on the credits page.