NGC 7315

NGC 7315

NGC 7315 is a lenticular galaxy in the constellation Pegasus about 295 million ly from Earth. It spans roughly 140,000 ly, about the width of our Milky Way. It is receding from us at about 6,098 km/s.

Illustration from its catalogued shape, not a photograph

Lenticular
type · S0
295 million ly
from Earth · from redshift
135k ly
across
13.9
apparent magnitude
6,098 km/s
receding (RC3)

Because its light is 295 million ly from home, you are seeing NGC 7315 as it looked roughly 295 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 7335Lenticular3.4 million ly
apart
NGC 7340Elliptical4.7 million ly
apart
NGC 7337Barred spiral13 million ly
apart
NGC 7320CLenticular16 million ly
apart
NGC 7317Elliptical17 million ly
apart
NGC 7263Lenticular18 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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