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Alpha Camelopardalis — Star in Camelopardalis

Magnitude 4.3m Star Camelopardalis (Cam) Visible
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1Physical Properties

Magnitude 4.29
Spectral Type O9.5Ia supergiant
Star Color White (B-V 0.03)

2Position & Identifiers

RA 04h 54m 03.0s
Dec +66° 20' 34.0"
Constellation Camelopardalis (Cam)
HR 1542
HIP 22783
HD 30614
SAO 13298
Bayer Alpha
Flamsteed 9 Cam
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium+ Medium
50mm finder Easy Easy Easy
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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7

Size Comparison

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8

Compare Stars

9

Spectral Classification

10

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
11

Stellar Lifecycle

12

Blackbody Spectrum

13

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

14

Stellar Fusion

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15Stellar Notes

Color excess E(B-V) = +0.32.
In cluster NGC 1502. A possible runaway star from Cam OB1; in reflection nebula. Member assoc. Cam R1 at 870 pc.
H alpha emission due to extended envelope. uv 1548 absorption strong, 1394 very strong. Central Balmer emission in | blue-violet only.

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.

ST Cam
Easy
Mira-type variable, range 6.3–8.5
Variable Star mag 7.00 1.8° Camelopardalis
NGC 1569
Medium+
Galaxy
Galaxy mag 11.2 2.8° Camelopardalis
Kemble's Cascade Cluster
NGC 1502
Easy
Rich open cluster
Open Cluster mag 5.7 6.4° Camelopardalis
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