1 Cassiopeiae — Star in Cassiopeia
Observe
1Physical Properties
Magnitude
4.85
Spectral Type
B0.5IV
subgiant
Star Color
Blue-white
(B-V -0.03)
2Position & Identifiers
RA
23h 06m 36.9s
Dec
+59° 25' 11.0"
Constellation
Cassiopeia
(Cas)
HR
8797
HIP
114104
HD
218376
SAO
35147
Flamsteed
1 Cas
Querying VizieR catalog...
3How easy to spot?
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| Equipment | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| Naked eye Naked eye | Medium+ | Medium | Hard+ |
| 50 mm finder 50mm finder | Easy | Easy | Easy |
| 150 mm telescope 150mm scope | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Aug – Oct
(peak: Sep)
5Survey Image
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Explore
6
Size Comparison
Querying VizieR for stellar data…
7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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10
Stellar Lifecycle
11
Blackbody Spectrum
12
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
13
Stellar Fusion
Discover
14Stellar Notes
Cep OB3.
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.
2 Cas
Easy double, sep 167.2″
Double Star
mag 5.70
0.4°
Cassiopeia
IC 1470
Emission nebula — try an OIII filter
Emission Nebula
mag 11.50
0.8°
Cepheus
NGC 7510
Open cluster
Open Cluster
mag 7.9
1.3°
Cepheus
V509 Cas
Variable star, range 4.8–5.5
Variable Star
mag 5.00
2.6°
Cassiopeia
4 Cas
Cool red giant
Star
mag 4.98
3.6°
Cassiopeia
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