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Zeta Reticuli
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Zeta Reticuli
Location of ? Reticuli (circled)
Observation data
Epoch J2000.0 Equinox J2000.0
Constellation
Reticulum
?1 Ret
Right ascension
03h 17m 46.16324s
Declination
-62° 34' 31.1563?
Apparent magnitude (V)
5.52
?2 Ret
Right ascension
03h 18m 12.81853s
Declination
-62° 30' 22.9048?
Apparent magnitude (V)
5.22
Characteristics
Spectral type
G3-5V + G2V
U-B color index
+0.08 / +0.01
B-V color index
+0.63 / +0.58
R-I color index
+0.34 / +0.34
Astrometry
?1 Ret
Radial velocity (Rv)
+12.2 km/s
Proper motion (µ)
RA: 1,337.57 mas/yr
Dec.: 649.12 mas/yr
Parallax (p)
83.28 ± 0.20 mas
Distance
39.16 ± 0.09 ly
(12.01 ± 0.03 pc)
?2 Ret
Radial velocity (Rv)
+11.5 km/s
Proper motion (µ)
RA: 1,330.74 mas/yr
Dec.: 647.11 mas/yr
Parallax (p)
83.11 ± 0.19 mas
Distance
39.24 ± 0.09 ly
(12.03 ± 0.03 pc)
Details
?1 Ret
Mass
0.958 M?
Radius
0.84 R?
Luminosity
0.69 L?
Surface gravity (log g)
4.54 ± 0.02 cgs
Temperature
5,746 ± 27 K
Metallicity
-0.22 dex
Rotational velocity (v sin i)
1.98 km/s
Age
1.5–3.0 Gyr
?2 Ret
Mass
0.985 M?
Radius
0.88 R?
Luminosity
0.82 L?
Surface gravity (log g)
4.46 ± 0.01 cgs
Temperature
5,859 ± 27 K
Metallicity
-0.16 dex
Rotational velocity (v sin i)
1.74 km/s
Other designations
Zeta1 Reticuli
?1 Reticuli, ?1 Ret, Zeta1 Ret, CPD -63°217, GCTP 701.00, GJ 136, HD 20766, HIP 15330, HR 1006, LFT 275, LHS 171, LTT 1573, SAO 248770
Zeta2 Reticuli
?2 Reticuli, ?2 Ret, Zeta2 Ret, CPD -62°265, GCTP 705.00, GJ 138, HD 20807, HIP 15371, HR 1010, LFT 276, LHS 172, LTT 1576, SAO 248774
Database references
SIMBAD
data
Database references
SIMBAD
data
Zeta Reticuli (Zeta Ret, ? Reticuli, ? Ret) is a wide binary star system in the southern constellation of Reticulum. From the southern hemisphere the pair can be seen as a naked eye double star in very dark skies. Based upon parallax measurements, this system is located at a distance of about 39 light-years (12 parsecs) from the Earth. Zeta2 Reticuli is orbited by a circumstellar debris disk. Both stars are solar analogs that share similar characteristics with the Sun. They belong to the Zeta Herculis Moving Group of stars that share a common origin.
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