Spiral Galaxy · Coma Berenices

M88 NGC 4501

Magnitude
9.6
Season
Spring
Difficulty
Moderate
Star-hop chart
M880.0° field0° rotation
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Imaging reference
NGC 4501 (M88) Spiral Galaxy

Observer's guide

About NGC 4501

NGC 4501 (M88) is catalogued as a spiral galaxy in Coma Berenices. Its J2000 position is RA 12:31:59.16, Dec +14:25:13.4, corresponding to 187.9965 degrees RA and 14.4203 degrees Dec. The local catalogue places it about 60,000,000 light-years away. Its referenced angular extent is approximately 6.69 by 3.45 arcminutes.

Observing tips

StarWatchr rates this as a moderate target at magnitude 9.6. It is associated with spring observing, with midnight placement typically strongest around March. From 52 degrees north its theoretical meridian altitude is about 52.4 degrees; local horizons and the live altitude chart determine the practical window.

Because it is faint, use a larger aperture where possible, avoid bright Moon conditions, and use averted vision.

What to expect

The SIMBAD classification for the matched source is Sy2. SIMBAD records the morphology as SA. A published radial velocity value is 2282 km/s. The SIMBAD record currently connects it to 849 bibliographic references.

At roughly 6.7 arcminutes across, it benefits from a narrower field and adequate image scale. Use the listed 6.69 by 3.45 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.

Sourced catalogue data

Scientific record

Measurements for M88 are kept separate from practical observing guidance.

Coordinates (J2000/ICRS)
RA 187.996469° · Dec 14.420319°
SIMBAD classification
Sy2
Morphology
SA
Angular extent
6.69′ × 3.45′
Position angle
142°
Surface brightness
21.64 mag/arcsec²
Radial velocity
2,282 km/s
Redshift
0.00764113
Linked bibliography
849 references
Best midnight placement
March
Observable latitude range
-75.6° to 90°

Source: SIMBAD astronomical database (CDS, Strasbourg) (ODbL; checked 2026-08-09). Catalogue values may change when new measurements are published.

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