NGC 978A

NGC 978A

NGC 978A is an elliptical galaxy in the constellation Triangulum about 220 million ly from Earth. It spans roughly 120,000 ly, about the width of our Milky Way. It is receding from us at about 4,707 km/s.

Illustration from its catalogued shape, not a photograph

Elliptical
type · E-S0
220 million ly
from Earth · from redshift
117k ly
across
13.3
apparent magnitude
4,707 km/s
receding (RC3)

Because its light is 220 million ly from home, you are seeing NGC 978A as it looked roughly 220 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
IC 1815Lenticular1.8 million ly
apart
NGC 983Barred spiral7.6 million ly
apart
NGC 978BLenticular8.9 million ly
apart
NGC 969Lenticular9.8 million ly
apart
NGC 987Lenticular10 million ly
apart
NGC 974Spiral11 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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