captured with Seestar S30
stacked in siril and editied in affinity
HS 0810+2554 is an extremely distant quasar located in the constellation Cancer.
Its light left the quasar when the universe was only about 4.3 billion years old.
- Redshift: z ≈ 1.50
- Apparent magnitude: ~16
- Type: Quadruply gravitationally lensed quasar
- Discovery: First identified in 2002 by astronomers led by D. Reimers
Gravitational lensing by a foreground galaxy splits the quasar’s light into four images, magnifying it and allowing detailed study despite its vast distance.
Observations have revealed that the host galaxy contains a rotating reservoir of carbon monoxide (CO) molecular gas, arranged in a circular disk, indicating active and organized galactic structure even at this early cosmic epoch.
- Light-travel distance: ~9.5 billion light-years
- Current (comoving) distance today: ~19 billion light-years
The difference between these distances is due to the continuous expansion of the universe while the light was traveling toward us.
by artemis_2020