NGC 291

NGC 291

NGC 291 is a barred spiral galaxy in the constellation Cetus about 265 million ly from Earth. It spans roughly 76,000 ly, about 76% of our Milky Way's width. The light reaching us tonight left it about 265 million years ago.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBa
265 million ly
from Earth · from redshift
76k ly
across
14.6
apparent magnitude

Because its light is 265 million ly from home, you are seeing NGC 291 as it looked roughly 265 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 309Spiral6.7 million ly
apart
NGC 293Barred spiral7.6 million ly
apart
NGC 349Elliptical13 million ly
apart
NGC 342Elliptical14 million ly
apart
NGC 347Galaxy14 million ly
apart
NGC 356Spiral16 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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