NGC 198

NGC 198

NGC 198 is a spiral galaxy in the constellation Pisces about 245 million ly from Earth. It spans roughly 91,000 ly, about the width of our Milky Way. It is receding from us at about 5,262 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sc
245 million ly
from Earth · from redshift
91k ly
across
13.1
apparent magnitude
5,262 km/s
receding (RC3)

Because its light is 245 million ly from home, you are seeing NGC 198 as it looked roughly 245 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 182Spiral2.1 million ly
apart
NGC 203Lenticular2.9 million ly
apart
NGC 194Elliptical4.5 million ly
apart
NGC 200Barred spiral5.3 million ly
apart
NGC 208Spiral7.2 million ly
apart
IC 40Barred spiral7.4 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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