When is the best time to observe NGC 4057?

NGC 4057 is best observed from February through April, with peak visibility during March when it transits around midnight in the Northern Hemisphere.

Where is NGC 4057 located in the sky?

NGC 4057 lies in the constellation Coma Berenices at right ascension 12h 05m and declination +20° 19′.

What telescope do I need to see NGC 4057?

At magnitude 12.6, NGC 4057 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

NGC 4057 — Galaxy in Coma Berenices

Galaxy Fair (24/100)

Elliptical

Magnitude 12.6^m Galaxy Coma Berenices (Com) Visible

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1Properties

Magnitude 12.57

Angular Size 1.3′ × 1.0′

Position Angle 120°

Distance 294.18 million ly

Galaxy Type Elliptical (E)

Description

pB (decl very doubtful)

Position & Identifiers

RA 12h 05m 18.0s

Dec +20° 19' 00.0"

Constellation Coma Berenices (Com)

Catalog NGC 4057

2How easy to spot?

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Hard	Hard	V. hard+
150 mm Newton 150mm Newt.	Medium	Hard+	Hard
Celestron C8 (203 mm SCT) C8 203mm	Medium+	Medium	Hard+

Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

Medium on Seestar S50

3Visibility

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Best season Feb – Apr (peak: Mar)

4 Eyepiece View

Telescope Eyepiece

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125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 4057 · 1.3′×1.0′ · N up, E left

5 Best Magnification

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6 Surface Brightness

7 Morphology Decoder

8 Inclination & True Shape

9 Redshift

10 Size Comparator

Discover

11

Light Travel Time Machine

12

Relativistic Travel

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

NGC 4055

Hard

Elliptical galaxy

Galaxy mag 12.93 0.8° Coma Berenices

2 Com

Easy

Easy double, sep 3.7″

Double Star mag 5.87 1.2° Coma Berenices

NGC 4064

Medium

Barred spiral galaxy

Galaxy mag 11.5 1.9° Coma Berenices

NGC 3862

Hard+

Elliptical galaxy

Galaxy mag 12.6 4.8° Leo

NGC 3842

Hard+

Elliptical galaxy

Galaxy mag 13.0 5.0° Leo

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