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NGC 6587 — Galaxy in Hercules

Galaxy Fair (29/100)

Elliptical

Magnitude 12.1m Galaxy Hercules (Her) Visible
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1Properties

Magnitude 12.1
Angular Size 1.8′
Position Angle 20°
Distance 145.55 million ly
Galaxy Type Elliptical (E-S0)
F, vS, R, stell

Position & Identifiers

RA 18h 13m 50.9s
Dec +18° 49' 30.7"
Constellation Hercules (Her)
Catalog NGC 6587

2How easy to spot?

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Telescope Bortle 3 Bortle 4 Bortle 5
80mm refr. Hard+ Hard Hard
150mm Newt. Medium+ Medium Hard+
C8 203mm Medium+ Medium+ 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 May – Jul (peak: Jun)

4 Eyepiece View

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125x TFOV: 0.4° Lim. mag: 13.6
N E

NGC 6587 · 1.8′×1.8′ · N up, E left

5 Best Magnification

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6 Surface Brightness

7 Morphology Decoder

8 Redshift

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10

Light Travel Time Machine

11

Relativistic Travel

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