5 Ser
HIP 74975; 5 Ser
DoubleStar
Ser
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.06
Spectral Type
F8III-IV
Star Color
Yellow
(B-V 0.54)
Distance
88.2 ly
Position & Identifiers
RA
15h 19m 18.8s
Dec
+01° 45' 55.0"
Constellation
Ser
HR
5694
HIP
74975
Flamsteed
5 Ser
Variable ID
MQ Ser
Double Cat
9584
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
11.4″
Companion Mag
10.1
Position Angle
35°
Star Colors
A: Yellow
Discoverer
STF1930
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 11.4″ · PA: 35° · 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
AB binary. Some disagreement as to whether B or C, at 127" from A, is the brighter.
Not member of Gamma Leo group but previously listed as such.
0.034".
Survey Image
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