NGC 6535 — Globular Cluster in Serpens
Fair (34/100)
Observe
1Properties
Magnitude
10.6
Angular Size
3.6′
pF, L, diam 1' or 2'
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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 | Hard+ | Hard |
| 150 mm Newton 150mm Newt. | Easy | Medium+ | Medium |
| Celestron C8 (203 mm SCT) 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
May – Jul
(peak: Jun)
4
Eyepiece View
125x
TFOV: 0.4°
Lim. mag: 13.6
NGC 6535 · 3.6′ diameter · N up, E left
5
Best Magnification
Explore
6
Classification Decoder
Nearby in the Sky
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Visibility scores assume a 150 mm Newton at Bortle 4.
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Variable Star
mag 6.21
6.5°
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mag 7.6
7.2°
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Globular cluster — dense ball of ancient stars
Globular Cluster
mag 9.6
7.3°
Serpens
NGC 6517
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 10.3
8.7°
Ophiuchus
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Constellation
