NGC 7642

NGC 7642

NGC 7642 is a spiral galaxy in the constellation Pisces about 417 million ly from Earth. It spans roughly 59,000 ly, about 59% of our Milky Way's width. It is receding from us at about 8,973 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sa
417 million ly
from Earth · from redshift
59k ly
across
14.7
apparent magnitude
8,973 km/s
receding (RC3)

Because its light is 417 million ly from home, you are seeing NGC 7642 as it looked roughly 417 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 1482Elliptical5.1 million ly
apart
NGC 7629Lenticular8.3 million ly
apart
NGC 7589Spiral12 million ly
apart
NGC 7603Barred spiral39 million ly
apart
IC 5287Barred spiral44 million ly
apart
NGC 7546Spiral44 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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