NGC 3147

NGC 3147

NGC 3147 is a barred spiral galaxy in the constellation Draco about 131 million ly from Earth. It spans roughly 160,000 ly, about 1.6 times the width of our Milky Way. It is receding from us at about 2,721 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · Sbc
131 million ly
from Earth · from redshift
156k ly
across
11.9
apparent magnitude
2,721 km/s
receding (RC3)

Because its light is 131 million ly from home, you are seeing NGC 3147 as it looked roughly 131 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 3348Elliptical5.4 million ly
apart
NGC 3155Barred spiral6.7 million ly
apart
NGC 3364Spiral7.1 million ly
apart
NGC 3516Lenticular11 million ly
apart
NGC 3183Barred spiral13 million ly
apart
NGC 3735Spiral16 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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