48 Aur
Observable Variable Star
Excellent (63/100)
Range: 5.0 - 5.82, Period: 3.7d, Type: DCEP
HIP 30827; 48 Aur
VariableStar
Aur
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
5.55
Range
5.0 - 5.82
Period
3.728 days
Variable Type
Classical Cepheid
Spectral Type
F8Ib
Star Color
Orange
(B-V 0.68)
Distance
652.3 ly
Position & Identifiers
RA
06h 28m 34.1s
Dec
+30° 29' 35.0"
Constellation
Aur
HR
2332
HIP
30827
Flamsteed
48 Aur
Variable ID
RT Aur
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Visibility
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Light Curve
Comparison Stars for 48 Aur (5.0–5.8)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Separation
0.0″
Companion Mag
10.5
Position Angle
224°
Star Colors
A: Orange
Discoverer
GAA 3
Eyepiece View
15x
Dawes: 1.9″
TFOV: 3.3°
Realistic = true angular size
Sep: 0.0″ · PA: 224° · 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
CDelta 5.02 - 5.82V. Per. changing, 3.728365 before 1950, 3.728115 since. CaII emission on rising branch of light | curve. Blue companion suspected.
Also classified F4Ib-G1Ib.
Survey Image
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