Mekbuda

Database links to Zeta Geminorum

Double star Mekbuda (ζ Geminorum)
AladinLite
Observation dates equinox :  J2000.0 , epoch : J2000.0
Constellation	Twins
Right ascension	07 h 04 m 6.5 s
declination	+ 20 ° 34 ′ 13 ″
Apparent brightness	3.79 (3.62-4.18) mag
Typing
B − V color index	(0.79)
U − B color index	(0.62)
Spectral class	F7 Ib to G3 Ib
Variable star type	DCEP
Astrometry
Radial velocity	(2.8 ± 0.2) km / s
parallax	(2.37 ± 0.30)  mas
distance	1,200  ly
Proper movement
Rec. Share:	(−7.29 ± 0.49)  mas / a
Dec. portion:	(−0.41 ± 0.32)  mas / a
Physical Properties
radius	(60)  R ☉
Effective temperature	(5300 to 5800)  K
Other names and catalog entries
Bayer name ζ Geminorum Flamsteed name 43 Geminorum Bonn survey BD + 20 ° 1687 Bright Star Catalog HR 2650 [1] Henry Draper Catalog HD 52973 [2] Hipparcos catalog HIP 34088 [3] SAO catalog SAO 79031 [4] Tycho catalog TYC 1353-1550-1 [5] 2MASS catalog 2MASS J07040653 + 2034131 [6] Other names Mekbuda, FK5 269

Mekbuda (from Arabic الذراع المقبوضة, DMG aḏ-ḏirāʿ al-maqbūḍa  'drawn in arm') is the proper name of the star Zeta Geminorum (short: ζ Gem) in the constellation Gemini .

Mekbuda is a variable star of the Delta Cephei type , the apparent magnitude of which fluctuates between +3.62 m and +4.18 m with a period of 10.15 days.
As is typical for Cepheids, its spectral class is also variable and lies between F7 Ib and G3 Ib.

Mekbuda has a +7.6 mag bright companion of the spectral type G1 at an angular distance of 101 "at a position angle of 346 degrees, which can already be seen in prism binoculars . Mekbuda is approx. 1170 light years away.

As a star near the ecliptic, Mekbuda can be covered by the moon and (very rarely!) By planets .

Individual evidence

1. ^ Hipparcos catalog (ESA 1997)
2. ↑ ^{a b c d e f} zet Gem. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed December 23, 2018 . 
3. ↑ ^{a b c} W Ser. In: VSX. AAVSO, accessed December 23, 2018 . 
4. ↑ ^{a b c} Mekbuda. In: STARS. Jim Kaler, accessed December 23, 2018 .