Observe
1Properties
Magnitude
10.0
Angular Size
6.5′
Cl, pRi, pC, st 11...15
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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 | Medium |
| 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
Aug – Oct
(peak: Sep)
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.
34 Cep
Easy double, sep 3.5″
Double Star
mag 4.75
2.9°
Cepheus
NGC 133
Open cluster
Open Cluster
mag 9.0
6.3°
Cassiopeia
NGC 146
Open cluster
Open Cluster
mag 9.1
6.5°
Cassiopeia
NGC 7788
Open cluster
Open Cluster
mag 9.0
6.7°
Cassiopeia
NGC 7790
Open cluster
Open Cluster
mag 8.5
6.9°
Cassiopeia
Bubble nebula
NGC 7635
Emission nebula — try an OIII filter
Emission Nebula
mag 11.00
7.5°
Cassiopeia
21 Cas
Eclipsing binary, period 4.5d
Variable Star
mag 5.66
8.2°
Cassiopeia
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