BK Camelopardalis — Star in Camelopardalis
Observe
1Physical Properties
Magnitude
4.84
Range
4.78 - 4.89
Variable Type
Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type
B2.5Ven
Star Color
Blue
(B-V -0.15)
Distance
362 ly
2Position & Identifiers
RA
03h 19m 59.4s
Dec
+65° 39' 08.0"
Constellation
Camelopardalis
(Cam)
HR
985
HIP
15520
HD
20336
SAO
12704
Variable ID
BK Cam
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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
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Best season
Oct – Dec
(peak: Nov)
5Survey Image
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6
Size Comparison
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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
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14Stellar Notes
Gamma Cas, 4.78 - 4.89V. Spectrum var. 4.5y from 1916 to 1931, previously longer cycles, but no changes noted after | 1937. R-I also found at -0.03 and -0.05.
Probably optical.
4.5y.
Cas-Tau OB1.
Shell star.
15
Light Travel Time Machine
16
Relativistic Travel
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.
BE Cam
Cool red giant
Star
mag 4.47
3.1°
Camelopardalis
BD Cam
Deep red carbon star
Star
mag 5.10
3.4°
Camelopardalis
IC 342
Galaxy
Galaxy
mag 9.0
3.6°
Camelopardalis
SU Cas
Pulsating variable, period 1.9d
Variable Star
mag 5.80
4.2°
Cassiopeia
Iota Cas
Easy double, sep 3.0″
Double Star
mag 4.52
5.4°
Cassiopeia
NGC 1027
Rich open cluster
Open Cluster
mag 6.7
5.8°
Cassiopeia
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Article
Camelopardalis
Mythology, bright stars, and deep-sky highlights.
Constellation
