NGC 4147 — Globular Cluster in Coma Berenices
Fair (36/100)
Observe
1Properties
Magnitude
10.3
Angular Size
2.4′
glob. cl. , vB, pL, R, gbM, rrr
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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 | 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
Feb – Apr
(peak: Mar)
4
Eyepiece View
125x
TFOV: 0.4°
Lim. mag: 13.6
NGC 4147 · 2.4′ 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.
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