Supernova or Cosmic Impostor? Hubble hunts for a surviving star in UGC 5460

Produced by: Mohsin Shaikh

Dazzling Spiral

UGC 5460, a stunning barred spiral galaxy, lies 60 million light-years away in the constellation Ursa Major.

Hubble’s View

This image combines four wavelengths of light, revealing the galaxy’s central bar, winding arms, and bright star clusters.

Nearby Intruder

A star just 577 light-years away appears in the upper left, sitting far closer than UGC 5460 but sharing the frame.

Explosive Past

UGC 5460 hosted two recent supernovae—SN 2011ht and SN 2015as, making it a prime target for supernova studies.

Stellar Collapse

SN 2015as was a core-collapse supernova, where a massive star’s core ran out of fuel and collapsed, triggering an explosion.

Representative pic

Shockwave Study

Hubble observations will track how the supernova’s shockwave interacts with surrounding gas, offering insight into star deaths.

Supernova Impostor?

SN 2011ht might have been a luminous blue variable, a rare type of star that mimics a supernova but survives the explosion.

Hubble’s Mission

Scientists will search for a surviving star at SN 2011ht’s location—if one remains, it was a luminous blue variable, not a true supernova.

Cosmic Time Capsule

Studying UGC 5460’s supernovae helps astronomers unravel the life cycles of massive stars and their explosive endings.

Representative pic