NGC 2998

NGC 2998

NGC 2998 is a spiral galaxy in the constellation Ursa Major about 222 million ly from Earth. It spans roughly 160,000 ly, about 1.6 times the width of our Milky Way. It is receding from us at about 4,767 km/s.

Illustration from its catalogued shape, not a photograph

Spiral
type · SABc
222 million ly
from Earth · from redshift
158k ly
across
12.5
apparent magnitude
4,767 km/s
receding (RC3)

Because its light is 222 million ly from home, you are seeing NGC 2998 as it looked roughly 222 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 3006Barred spiral1.5 million ly
apart
NGC 3008Lenticular1.8 million ly
apart
NGC 3010Elliptical2.5 million ly
apart
NGC 3010CSpiral6.9 million ly
apart
NGC 3005Spiral9.8 million ly
apart
NGC 3009Barred spiral10 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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