NGC 789

NGC 789

NGC 789 is a barred spiral galaxy in the constellation Triangulum about 244 million ly from Earth. It spans roughly 49,000 ly, about 49% of our Milky Way's width. It is receding from us at about 5,116 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sb
244 million ly
from Earth · from redshift
49k ly
across
14.0
apparent magnitude
5,116 km/s
receding (RC3)

Because its light is 244 million ly from home, you are seeing NGC 789 as it looked roughly 244 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 783Spiral3.0 million ly
apart
IC 200Barred spiral4.9 million ly
apart
NGC 804Lenticular5.8 million ly
apart
NGC 750Elliptical6.6 million ly
apart
NGC 798Elliptical9.4 million ly
apart
NGC 778Lenticular9.4 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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