NGC 7722

NGC 7722

NGC 7722 is a lenticular galaxy in the constellation Pegasus about 186 million ly from Earth. It spans roughly 110,000 ly, about the width of our Milky Way. It is receding from us at about 4,036 km/s.

Illustration from its catalogued shape, not a photograph

Lenticular
type · S0-a
186 million ly
from Earth · from redshift
114k ly
across
13.5
apparent magnitude
4,036 km/s
receding (RC3)

Because its light is 186 million ly from home, you are seeing NGC 7722 as it looked roughly 186 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 7703Lenticular3.2 million ly
apart
NGC 7711Lenticular4.2 million ly
apart
NGC 7691Barred spiral5.1 million ly
apart
NGC 7659Lenticular12 million ly
apart
NGC 7672Barred spiral15 million ly
apart
NGC 7671Lenticular15 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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