Map of the Universe

Sextans B

Dwarf galaxy · Dwarf irregular galaxy in the constellation Sextans

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Sextans B
Picture: KPNO/NOIRLab/NSF/AURA, CC BY 4.0, via Wikimedia Commons.

About Sextans B

Sextans B is about 4.54 million light-years from the Sun, so the light we see from it left about 4.54 million years ago.

The map lists it as a dwarf galaxy and shows it at the scale of the Milky Way and the Local Group, drawn on the plane of the Milky Way.

Key numbers

Distance4.54 million light-years (1.39 Mpc)
Distance methodLVDB (RR Lyrae, TRGB or other)
Supergalactic coordinatesSGL 95.5°, SGB -39.6°
Absolute magnitude (V)-14.4
Stellar mass1 × 10⁸ suns

Data: Local Volume Database v1.1.1 (Pace 2025).

Where it is

Its place in the universe, from the inside out: Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.

Zoom out to see it in context: Local Group, a view about 10 million light-years across.

From Wikipedia

Sextans B (also known as UGC 5373 and DDO 70) is an irregular galaxy that may be part of the Local Group, or lie just beyond it. The earliest known reference to this galaxy is from a 1954 paper by Edison Pettit in The Astrophysical Journal, where it was listed as "Wilson Dwarf".

Excerpt from the Wikipedia article Sextans B, licensed CC BY-SA 4.0.

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