Zeta Sge
HIP 97496; Zeta Sge; 8 Sge
DoubleStar
Sge
Visible
Level 6
Professional/Research - Requires steady seeing
Physical Properties
Magnitude
5.00
Spectral Type
A3V
Star Color
White
(B-V 0.10)
Distance
326.2 ly
Position & Identifiers
RA
19h 48m 58.7s
Dec
+19° 08' 32.0"
Constellation
Sge
HR
7546
HIP
97496
Bayer
Zeta
Flamsteed
8 Sge
Double Cat
12973
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
0.2″
Companion Mag
6.0
Position Angle
158°
Star Colors
A: White
B: Yellow-white
Discoverer
AGC 11
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.2″ · PA: 158° · 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
AB 5.5 A1V, 6.2 A3V, 22.8y, a = 0.146". Masses 4.0, 2.0 solar. C, 8.7v at 8" physical. Speckle interferometry 1985.5 | gives sep. 0.180".
0.010".
ADS 12973A, suspected SB.
Survey Image
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