NGC 6366 — Globular Cluster in Ophiuchus
Good (43/100)
Observe
1Properties
Magnitude
10.0
Angular Size
13.8′
F, L, vlbM
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Position & Identifiers
2How easy to spot?
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Medium+ | Medium | Hard+ |
| 150 mm Newton 150mm Newt. | Easy | Easy | Medium+ |
| Celestron C8 (203 mm SCT) C8 203mm | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Easy
on Seestar S50
3Visibility
Set a location in User Settings to see visibility data.
Best season
May – Jul
(peak: Jun)
4
Eyepiece View
50x
TFOV: 1.0°
Lim. mag: 13.6
NGC 6366 · 13.8′ diameter · N up, E left
5
Best Magnification
Explore
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.
M14
NGC 6402
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 7.6
3.1°
Ophiuchus
Y Oph
Pulsating variable, period 17.1d
Variable Star
mag 6.21
6.3°
Ophiuchus
M10
NGC 6254
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 6.6
7.7°
Ophiuchus
Collinder 350
Open cluster
Open Cluster
mag 6.1
8.2°
Ophiuchus
NGC 6426
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 11.2
9.1°
Ophiuchus
NGC 6517
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 10.3
9.3°
Ophiuchus
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