Mekbuda
Zeta Gem
Observable Variable Star
Excellent (65/100)
Range: 3.62 - 4.18, Period: 10.1d, Type: DCEP
HIP 34088; Zeta Gem; 43 Gem
VariableStar
Gem
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
3.79
Range
3.62 - 4.18
Period
10.150 days
Variable Type
Classical Cepheid
Spectral Type
G1Ib
Star Color
Orange
(B-V 0.79)
Distance
1350.2 ly
Position & Identifiers
RA
07h 04m 06.5s
Dec
+20° 34' 13.0"
Constellation
Gem
HR
2650
HIP
34088
Bayer
Zeta
Flamsteed
43 Gem
Variable ID
Zet Gem
Double Cat
5742
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Visibility
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Light Curve
Comparison Stars for Mekbuda (3.6–4.2)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Components
6
Component IDs
O
Separation
87.3″
Companion Mag
11.5
Position Angle
85°
Star Colors
A: Orange
Discoverer
SHJ 77
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 87.3″ · PA: 85° · 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
ADS 5742A, CDelta 3.62 - 4.18V, 10.15073d. Period decreasing 3.1s/y.
Component A is suspected occultation double, 4.5, 4.5v, sep. 0.1". B, 10.5v at 87". C, +20d1686, 7.55V, +0.62(B-V), +0. | +0.07(U-B), G1V at 96" has high proper motion, 0.100", optical, vsini =<54k/s. Other components fainter.
Same period.
Mekbuda.
Survey Image
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