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NGC 6287 — Globular Cluster in Ophiuchus

Globular Cluster Good (46/100)
Magnitude 9.2m GlobularCluster Ophiuchus (Oph) Visible
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1Properties

Magnitude 9.2
Angular Size 5.4′
glob. cl. , cB, L, R, gmpCM, rrr, st 16

Position & Identifiers

RA 17h 05m 09.3s
Dec -22° 42' 28.8"
Constellation Ophiuchus (Oph)
Catalog NGC 6287

2How easy to spot?

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

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

Easy 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 6287 · 5.4′ diameter · N up, E left

5 Best Magnification

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6 Classification Decoder

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 6284
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 9.0 2.1° Ophiuchus
NGC 6235
Medium+
Globular cluster — dense ball of ancient stars
Globular Cluster mag 10.2 2.8° Ophiuchus
NGC 6325
Medium+
Globular cluster — dense ball of ancient stars
Globular Cluster mag 10.7 3.1° Ophiuchus
39 Oph
Easy
Colorful double, sep 10.7″
Double Star mag 5.20 3.3° Ophiuchus
M19
NGC 6273
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 7.2 3.6° Ophiuchus
V1010 Oph
Medium+
Eclipsing binary, period 15.9h
Variable Star mag 6.10 8.0° Ophiuchus
IC 4605
Medium+
Reflection nebula around a bright star
Reflection Nebula mag 4.70 8.3° Scorpius
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