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NGC 4340 — Galaxy in Coma Berenices

Galaxy Good (40/100)

Lenticular

Magnitude 11.0m Galaxy Coma Berenices (Com) Visible
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1Properties

Magnitude 11.0
Angular Size 2.8′ × 1.8′
Position Angle 87°
Distance 42.87 million ly
Galaxy Type Lenticular (S0-a)
pB, S, R, psbM

Position & Identifiers

RA 12h 23m 36.0s
Dec +16° 43' 00.0"
Constellation Coma Berenices (Com)
Catalog NGC 4340

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Medium Hard+ Hard+
150mm Newt. Easy Medium+ Medium
C8 203mm Easy Easy Medium+
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

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 4340 · 2.8′×1.8′ · 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 4239
Hard+
Elliptical galaxy
Galaxy mag 13.0 1.5° Coma Berenices
NGC 4237
Medium
Bright spiral galaxy
Galaxy mag 11.7 2.1° Coma Berenices
M99
St. Catherine's Wheel
Medium
Bright spiral galaxy
Galaxy mag 9.9 2.6° Coma Berenices
M98
NGC 4192
Medium
Edge-on galaxy
Galaxy mag 10.1 3.0° Coma Berenices
NGC 4147
Medium+
Compact globular cluster
Globular Cluster mag 10.3 3.7° Coma Berenices
2 Com
Easy
Easy double, sep 3.7″
Double Star mag 5.87 6.6° Coma Berenices
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