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Zeta Reticuli

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. ^ a b c d e f g h i j Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page). ^ a b c d Cite error: The named reference ibsh8_30 was invoked but never defined (see the help page). ^ a b c d e f g Cite error: The named reference aaa358 was invoked but never defined (see the help page). ^ a b Cite error: The named reference rgcrv was invoked but never defined (see the help page). ^ a b Cite error: The named reference apjss168 was invoked but never defined (see the help page). ^ a b Cite error: The named reference cadars was invoked but never defined (see the help page). ^ a b Cite error: The named reference aaa425 was invoked but never defined (see the help page). ^ Cite error: The named reference apj687 was invoked but never defined (see the help page). ^ Cite error: The named reference metal2 was invoked but never defined (see the help page). Cite error: There are tags on this page, but the references will not show without a {{reflist|group=note}} template (see the help page).
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