NGC 6930

NGC 6930

NGC 6930 is a barred spiral galaxy in the constellation Delphinus about 218 million ly from Earth. It spans roughly 91,000 ly, about the width of our Milky Way. It is receding from us at about 4,182 km/s.

Illustration from its catalogued shape, not a photograph

Barred spiral
type · SBab
218 million ly
from Earth · from redshift
91k ly
across
12.9
apparent magnitude
4,182 km/s
receding (RC3)

Because its light is 218 million ly from home, you are seeing NGC 6930 as it looked roughly 218 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 6928Barred spiral1.7 million ly
apart
NGC 6917Barred spiral8.6 million ly
apart
NGC 6927Lenticular12 million ly
apart
NGC 6956Barred spiral14 million ly
apart
NGC 6927AElliptical14 million ly
apart
NGC 6944Elliptical15 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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