NGC 5617 — Open Cluster in Centaurus
Good (59/100)
Observe
1Properties
Magnitude
6.3
Angular Size
5.1′
Cl, L, pRi, pCM, st 8...
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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. | Easy | Easy | Easy |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| 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
Mar – May
(peak: Apr)
4
Eyepiece View
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.
NGC 5606
Open cluster
Open Cluster
mag 7.7
1.1°
Centaurus
Rigil Kentaurus
HIP 71681; Alpha1 Centauri
Easy double, sep 9.4″
Double Star
mag -0.01
1.2°
Centaurus
R Cen
Mira-type variable, range 5.3–11.8
Variable Star
mag 6.39
1.8°
Centaurus
NGC 5715
Open cluster
Open Cluster
mag 10.0
3.6°
Circinus
NGC 5662
Rich open cluster
Open Cluster
mag 5.5
4.2°
Centaurus
NGC 5316
Rich open cluster
Open Cluster
mag 6.0
4.5°
Centaurus
NGC 5189
Planetary nebula — try an OIII filter
Planetary Nebula
mag 10.0
8.2°
Musca
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