When is the best time to observe NGC 4797?

NGC 4797 is best observed from February through April, with peak visibility during March when it transits around midnight in the Northern Hemisphere.

Where is NGC 4797 located in the sky?

NGC 4797 lies in the constellation Coma Berenices at right ascension 12h 55m and declination +27° 25′.

What telescope do I need to see NGC 4797?

At magnitude 13.2, NGC 4797 is a challenging target that needs at least an 8-inch (200 mm) telescope and dark skies.

NGC 4797 — Galaxy in Coma Berenices

Galaxy Fair (24/100)

Elliptical

Magnitude 13.2^m Galaxy Coma Berenices (Com) Visible

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1Properties

Magnitude 13.16

Angular Size 1.1′ × 0.8′

Position Angle 34°

Galaxy Type Elliptical (E-S0)

Description

F, S, R, lbM; nonexistent?

Position & Identifiers

RA 12h 54m 55.2s

Dec +27° 24' 45.7"

Constellation Coma Berenices (Com)

Catalog NGC 4797

2How easy to spot?

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

Easy Medium Hard Very hard Impossible

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

Medium on Seestar S50

3Visibility

Set a location in User Settings to see visibility data.

Best season Feb – Apr (peak: Mar)

4 Eyepiece View

Telescope Eyepiece

125x TFOV: 0.4° Lim. mag: 13.6

Seeing Bortle

NGC 4797 · 1.1′×0.8′ · N up, E left

5 Best Magnification

Explore

6 Surface Brightness

7 Morphology Decoder

8 Inclination & True Shape

9 Redshift

10 Size Comparator

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 4559

Easy

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Galaxy mag 9.9 4.2° Coma Berenices

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NGC 4494

Easy

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Galaxy mag 9.9 5.5° Coma Berenices

17 Com

Easy

Easy double, sep 146.4″

Double Star mag 5.29 6.0° Coma Berenices

NGC 4448

Medium+

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Galaxy mag 11.1 6.0° Coma Berenices

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Easy

Open cluster

Open Cluster mag 1.8 6.8° Coma Berenices

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