NGC 7309

NGC 7309

NGC 7309 is a spiral galaxy in the constellation Aquarius about 188 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. It is receding from us at about 3,938 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · SABc
188 million ly
from Earth · from redshift
114k ly
across
12.5
apparent magnitude
3,938 km/s
receding (RC3)

Because its light is 188 million ly from home, you are seeing NGC 7309 as it looked roughly 188 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 7246Spiral23 million ly
apart
NGC 7393Barred spiral24 million ly
apart
NGC 7399Lenticular25 million ly
apart
IC 1440Spiral26 million ly
apart
NGC 7441Spiral29 million ly
apart
IC 5278Spiral33 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).

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