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IC 4580 — Galaxy in Corona Borealis

Galaxy Fair (20/100)

Lenticular

Magnitude 15.0m Galaxy Corona Borealis (CrB) Visible
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1Properties

Magnitude 15.0
Angular Size 1.0′ × 0.5′
Position Angle 164°
Distance 445.76 million ly
Galaxy Type Lenticular (S0-a)
F, S, R

Position & Identifiers

RA 15h 43m 14.2s
Dec +28° 21' 24.5"
Constellation Corona Borealis (CrB)
Catalog IC 4580

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. V. hard V. hard V. hard
150mm Newt. V. hard V. hard V. hard
C8 203mm V. hard+ V. hard+ V. 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 Apr – Jun (peak: May)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

IC 4580 · 1.0′×0.5′ · 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

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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.

Alphecca
HIP 76267; Alpha Coronae Borealis; 5 Coronae Borealis
Easy
Bright naked-eye star, mag 2.2
Star mag 2.23 2.5° Corona Borealis
Blaze Star
HR 5958
Medium+
Mira-type variable, range 2.0–10.8
Variable Star mag 10.00 4.4° Corona Borealis
NGC 6051
Hard+
Edge-on galaxy
Galaxy mag 13.0 6.6° Serpens
NGC 6020
Hard+
Elliptical galaxy
Galaxy mag 12.6 6.7° Serpens
NGC 6027
Hard+
Bright spiral galaxy
Galaxy mag 12.4 8.4° Serpens
Show on Map

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