NGC 7317

NGC 7317

NGC 7317 is an elliptical galaxy in the constellation Pegasus about 311 million ly from Earth. It spans roughly 72,000 ly, about 72% of our Milky Way's width. It is receding from us at about 6,646 km/s.

Illustration from its catalogued shape, not a photograph

Elliptical
type · E
311 million ly
from Earth · from redshift
72k ly
across
13.7
apparent magnitude
6,646 km/s
receding (RC3)

Because its light is 311 million ly from home, you are seeing NGC 7317 as it looked roughly 311 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 7337Barred spiral4.5 million ly
apart
NGC 7319Barred spiral7.9 million ly
apart
NGC 7369Spiral9.7 million ly
apart
NGC 7340Elliptical13 million ly
apart
NGC 7335Lenticular14 million ly
apart
NGC 7270Spiral16 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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