NGC 109

NGC 109

NGC 109 is a spiral galaxy in the constellation Andromeda about 257 million ly from Earth. It spans roughly 78,000 ly, about 78% of our Milky Way's width. It is receding from us at about 5,512 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sa
257 million ly
from Earth · from redshift
78k ly
across
13.7
apparent magnitude
5,512 km/s
receding (RC3)

Because its light is 257 million ly from home, you are seeing NGC 109 as it looked roughly 257 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 1552Spiral5.6 million ly
apart
NGC 85Lenticular5.9 million ly
apart
NGC 79Elliptical6.4 million ly
apart
NGC 86Lenticular7.1 million ly
apart
IC 1545Galaxy7.8 million ly
apart
NGC 93Spiral8.0 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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