NamesMessier 106, NGC 4258
TypeGalaxy
ConstellationCanes Venatici
Distance≈ 24 million ly
Magnitude8.4
Size17.8′ × 6.9′
RA12h 18m 57.6s
Dec+47° 18′ 13″

Messier 106 is an intermediate spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. M106 contains an active nucleus classified as a Type 2 Seyfert, and the presence of a central supermassive black hole has been demonstrated from radio-wavelength observations of the rotation of a disk of molecular gas orbiting within the inner light-year around the black hole. NGC 4217 is a possible companion galaxy of Messier 106. Besides the two visible arms, it has two "anomalous arms" detectable using an X-ray telescope.1

Messier 106

The small galaxy to the bottom right is NGC 4248.

Photo Details

TelescopeSeestar S50 (250 mm f/5)
Dates2024-03-16, 2025-01-10, 2026-03-05
Integration time3h 35m

Footnotes

  1. Wikipedia - Messier 106 ↩