NGC 681

NGC 681

NGC 681 is a spiral galaxy in the constellation Cetus about 82 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 1,754 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · SABa
82 million ly
from Earth · from redshift
59k ly
across
11.9
apparent magnitude
1,754 km/s
receding (RC3)

Because its light is 82 million ly from home, you are seeing NGC 681 as it looked roughly 82 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 701Barred spiral3.8 million ly
apart
NGC 755Barred spiral6.2 million ly
apart
NGC 636Elliptical7.1 million ly
apart
NGC 615Barred spiral7.9 million ly
apart
NGC 720Elliptical8.2 million ly
apart
NGC 600Spiral8.5 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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