Atik
HIP 17448; 38 Per
Observable Double Star
Fair (28/100)
Sep: 1.1", Companion: mag 6.7
HIP 17448; 38 Per
DoubleStar
Per
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
3.83
Variable Type
Ellipsoidal Variable
Spectral Type
B1III
Star Color
White
(B-V 0.05)
Distance
1120.8 ly
Position & Identifiers
RA
03h 44m 19.1s
Dec
+32° 17' 18.0"
Constellation
Per
HR
1131
HIP
17448
Flamsteed
38 Per
Variable ID
Omi Per
Double Cat
2726
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Visibility
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Multiple Star System
Separation
1.1″
Companion Mag
6.7
Position Angle
20°
Star Colors
A: White
B: Yellow
Discoverer
BU 535
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 1.1″ · PA: 20° · N up, E left
Unresolved · 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
Ell 3.79 - 3.85V, 4.419171d, possibly half.
Binary. Combined mag., colors. Rotational velocity B, 150:k/s. Unresolved by speckle interferometry 1982.16.
4.4192d, K 109.3k/s, V0 +19.8k/s, msin3i 5.26, asini 6.63. Rotational velocity of secondary, 84k/s, primary | 85k/s.
Reddened star. Color excess E(B-V) = +0.32.
Per OB2 (not a member). Embedded in reflection nebulosity. In cluster IC 348.
0.005".
Atik; Ati; Al Atik.
Survey Image
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