NGC 7398

NGC 7398

NGC 7398 is a barred spiral galaxy in the constellation Pisces about 219 million ly from Earth. It spans roughly 67,000 ly, about 67% of our Milky Way's width. It is receding from us at about 10,405 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBa
219 million ly
from Earth · from redshift
67k ly
across
14.6
apparent magnitude
10,405 km/s
receding (RC3)

Because its light is 219 million ly from home, you are seeing NGC 7398 as it looked roughly 219 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 7397Lenticular380,000 ly
apart
NGC 7402Lenticular3.8 million ly
apart
IC 1455Barred spiral6.3 million ly
apart
NGC 7373Lenticular9.9 million ly
apart
NGC 7396Spiral10 million ly
apart
NGC 7401Barred spiral10 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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