NGC 3447A

NGC 3447A

NGC 3447A is a spiral galaxy in the constellation Leo about 50 million ly from Earth. It spans roughly 49,000 ly, about 49% of our Milky Way's width. It is receding from us at about 1,014 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · Sm
50 million ly
from Earth · from redshift
49k ly
across
14.5
apparent magnitude
1,014 km/s
receding (RC3)

Because its light is 50 million ly from home, you are seeing NGC 3447A as it looked roughly 50 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 3447BIrregular710,000 ly
apart
NGC 3454Barred spiral1.7 million ly
apart
NGC 3455Spiral2.5 million ly
apart
NGC 3443Spiral3.2 million ly
apart
NGC 3501Spiral3.8 million ly
apart
NGC 3457Elliptical4.2 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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