NGC 7803

NGC 7803

NGC 7803 is a lenticular galaxy in the constellation Pegasus about 249 million ly from Earth. It spans roughly 62,000 ly, about 62% of our Milky Way's width. It is receding from us at about 5,260 km/s.

Illustration from its catalogued shape, not a photograph

Lenticular
type · S0-a
249 million ly
from Earth · from redshift
62k ly
across
14.1
apparent magnitude
5,260 km/s
receding (RC3)

Because its light is 249 million ly from home, you are seeing NGC 7803 as it looked roughly 249 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 7810Lenticular8.2 million ly
apart
NGC 7794Spiral11 million ly
apart
IC 7Lenticular22 million ly
apart
NGC 7834Spiral22 million ly
apart
NGC 7782Barred spiral24 million ly
apart
NGC 57Elliptical24 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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