NGC 309

NGC 309

NGC 309 is a spiral galaxy in the constellation Cetus about 263 million ly from Earth. It spans roughly 170,000 ly, about 1.7 times the width of our Milky Way. It is receding from us at about 5,649 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · SABc
263 million ly
from Earth · from redshift
171k ly
across
12.2
apparent magnitude
5,649 km/s
receding (RC3)

Because its light is 263 million ly from home, you are seeing NGC 309 as it looked roughly 263 million years ago. The photons left before that much of history had passed, and are only now reaching us. This distance is estimated from the galaxy's redshift, so the lookback time is approximate.

Nearest galaxies
NGC 291Barred spiral6.7 million ly
apart
NGC 293Barred spiral13 million ly
apart
NGC 347Galaxy16 million ly
apart
NGC 349Elliptical16 million ly
apart
NGC 342Elliptical17 million ly
apart
NGC 356Spiral18 million ly
apart
Worlds in the same direction on the sky

Source: structural data (position, morphology, brightness, redshift) from OpenNGC (CC BY-SA). Recession velocity from RC3 (de Vaucouleurs et al. 1991, via NASA/HEASARC, public domain). Distance computed by gravityfinder from redshift via Hubble's law (H0 = 70 km/s/Mpc).

← all galaxies