Galaxy · Coma Berenices

Messier 91

M91 · NGC 4548

Not above the horizon after darkRises 05:18 · not up after dark

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Where is Messier 91?

Times for LondonChange city

Below the horizon after dark tonight in Coma Berenices. Rises 05:18.

From London tonight, Messier 91 isn’t above the horizon while the sky is dark. It rises at 05:18 and sets at 19:58, in daylight or twilight.

At magnitude 11.0, with its light spread out, it is a target for larger telescopes under dark skies.

This is position and timing only: clouds, haze and light pollution aren’t included.

Not visible

Too faint to see by eye.

Too faint for most binoculars.

A brighter core in a faint glow. Spiral arms show only in long-exposure photos.

What you’re likely to see, not what a space telescope photographs. General guidance from catalog brightness and size, not a forecast for tonight.

Messier 91 (M91) is a galaxy in Coma Berenices, with a total brightness of magnitude 11.0 and an apparent size of 5.5′.

Sources: OpenNGC (CC BY-SA 4.0); star chart: Wikidata (CC0). Positions computed for your place and time with astronomy-engine. Data & Licences