SZ Cam
HIP 19272
DoubleStar
Cam
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
6.99
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
B0III
Star Color
Yellow-white
(B-V 0.42)
Position & Identifiers
RA
04h 07m 51.1s
Dec
+62° 19' 48.0"
Constellation
Cam
HR
1260
HIP
19272
Variable ID
SZ Cam
Double Cat
2984
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Visibility
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Multiple Star System
Components
12
Component IDs
AB
Separation
6.4″
Companion Mag
12.9
Companion Sp
B0II
Position Angle
255°
Star Colors
A: Yellow-white
B: Blue
Discoverer
ES 2603
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 6.4″ · PA: 255° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Two variables: ADS 2984A = NSV 1458, amp. 0.05V, SB; component B = SZ Cam, Np, EA 7.0 - 7.29B, changing period, abrupt | change in 1972 from 2.6984378 to 2.69854365, later to 2.6985439d.
AB fixed. Some confusion in literature as to which component is A, which B. SZ CAM is Np = B, 6.94V, +0.41(B-V), | -0.53(U-B), O9.5V, vsini 160:k/s. Colors of both components have been described as "yellowish" even though both have | B-type spectra. Component Q, 10.39V, +0.58(B-V), -0.26(U-B).
ADS 2984B, same period as for variable light. K 110.9k/s, V0 -22.8, asini 4.11.
Open cluster NGC 1502 #1, near center and probable member of cluster.
Luminosity of A variously classified II-III, V. Component B classified O9.5V, B0III or B0IIn.
Survey Image
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