NGC 339 — Globular Cluster in Tucana
Fair (29/100)
Observe
1Properties
Magnitude
11.9
Angular Size
2.9′
F, L, R, vgbM
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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. | Hard | V. hard+ | V. hard |
| 150 mm Newton 150mm Newt. | Medium | Hard+ | Hard |
| Celestron C8 (203 mm SCT) C8 203mm | Medium+ | Medium | 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
Aug – Oct
(peak: Sep)
4
Eyepiece View
125x
TFOV: 0.4°
Lim. mag: 13.6
NGC 339 · 2.9′ 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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mag 12.0
1.2°
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NGC 419
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1.8°
Tucana
NGC 152
Compact globular cluster
Globular Cluster
mag 12.0
2.2°
Tucana
NGC 406
Barred spiral galaxy
Galaxy
mag 12.0
4.6°
Tucana
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