NGC 6103

NGC 6103

NGC 6103 is a spiral galaxy in the constellation Corona Borealis about 441 million ly from Earth. It spans roughly 92,000 ly, about the width of our Milky Way. It is receding from us at about 9,383 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sc
441 million ly
from Earth · from redshift
92k ly
across
14.4
apparent magnitude
9,383 km/s
receding (RC3)

Because its light is 441 million ly from home, you are seeing NGC 6103 as it looked roughly 441 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 6089 NED02Spiral9.6 million ly
apart
NGC 6089 NED01Lenticular12 million ly
apart
NGC 6086Elliptical24 million ly
apart
NGC 6107Elliptical25 million ly
apart
NGC 6112Elliptical25 million ly
apart
NGC 6108Barred spiral25 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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