Observe
1Properties
Magnitude
11.0
Angular Size
3.6′
Cl, S, Ri, lC, st 11...12
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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
Set a location in User Settings to see visibility data.
Best season
Jun – Aug
(peak: Jul)
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 6755
Open cluster
Open Cluster
mag 7.5
0.5°
Aquila
NGC 6749
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 11.1
2.9°
Aquila
Theta Ser
HIP 92951; Theta2 Serpentis; 63 Serpentis
Easy double, sep 405.6″
Double Star
mag 4.98
3.1°
Serpens
R Aql
Mira-type variable, range 5.5–12.0
Variable Star
mag 6.09
3.6°
Aquila
NGC 6709
Rich open cluster
Open Cluster
mag 6.7
7.1°
Aquila
NGC 6738
Open cluster
Open Cluster
mag 8.0
7.1°
Aquila
IC 4756
Open cluster
Open Cluster
mag 5.0
7.5°
Serpens
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