NGC 255

NGC 255

NGC 255 is a barred spiral galaxy in the constellation Cetus about 74 million ly from Earth. It spans roughly 44,000 ly, about 44% of our Milky Way's width. It is receding from us at about 1,888 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sbc
74 million ly
from Earth · from redshift
44k ly
across
11.9
apparent magnitude
1,888 km/s
receding (RC3)

Because its light is 74 million ly from home, you are seeing NGC 255 as it looked roughly 74 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 210Spiral4.4 million ly
apart
NGC 157Spiral6.8 million ly
apart
IC 51Lenticular6.8 million ly
apart
NGC 274Elliptical7.0 million ly
apart
NGC 337Barred spiral7.2 million ly
apart
NGC 178Barred spiral7.5 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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