NGC 4395 Black Hole

59,000 kmevent horizon diameter

Updated

59,000km
Visual creditscaleofspace.org / CC BY-NC 4.0

Details

The black hole in NGC 4395 powers an active galactic nucleus inside a small bulgeless galaxy. Its existence helped show that a galaxy does not need a large central bulge to host a feeding central black hole.

Reverberation measurements of the active nucleus in NGC 4395 indicate a black hole of roughly 10,000 solar masses. Its host is a dwarf spiral without a conventional central bulge, showing that an actively feeding nuclear black hole can exist outside the large, bulge-dominated galaxies in which such objects are easiest to find.

Key facts

Category
Black holes
Object class
Intermediate-mass black hole
Host
NGC 4395
Scale fact
59,000 kmevent horizon diameter
Mass
~10,000 solar masses
Embed

Size neighbors

Objects near NGC 4395 Black Hole on the scale

On the logarithmic size axis, NGC 4395 Black Hole falls between Uranus and Saturn. The band uses nearby Black holes records.

Shared physical scale
181billion km
Cygnus X-1120 km
NGC 4395 Black Hole59,000 km
HLX-1118,000 km
Sagittarius A*24.5 million km
M87*38 billion km
Holm 15A*236 billion km

Sources

References for NGC 4395 Black Hole

Measurements and descriptive context are compiled by the Scale of Space team from the references below. If you find an error, please let us know.

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