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2 Lyncis information


2 Lyncis

2 Lyncis in optical light.
Observation data
Epoch J2000      Equinox J2000
Constellation Lynx
Right ascension 06h 19m 37.38458s[1]
Declination +59° 00′ 39.4683″[1]
Apparent magnitude (V) 4.44[2]
Characteristics
Spectral type A2 Vs[3]
B−V color index 0.032±0.004[2]
Variable type Eclipsing binary[4]
Astrometry
Radial velocity (Rv)−2.0±0.1[5] km/s
Proper motion (μ) RA: −5.35[1] mas/yr
Dec.: +23.86[1] mas/yr
Parallax (π)20.83 ± 0.40 mas[1]
Distance157 ± 3 ly
(48.0 ± 0.9 pc)
Absolute magnitude (MV)1.03[2]
Orbit[6]
Period (P)1306.82±0.96 d
Eccentricity (e)0.497±0.010
Periastron epoch (T)2450962.0±2.0
Argument of periastron (ω)
(secondary)
186.30±0.79°
Semi-amplitude (K1)
(primary)
3.281±0.044 km/s
Details[6]
2 Lyn A
Mass2.32±0.02[3] M
Radius2.2 R
Luminosity39.5+1.8
−1.7
[3] L
Surface gravity (log g)4.1±0.1 cgs
Temperature9,310±100 K
Rotation1.56 d
Rotational velocity (v sin i)44 km/s
2 Lyn B
Mass0.46 M
Other designations
2 Lyn, UZ Lyn, BD+59° 959, FK5 237, HD 43378, HIP 30060, HR 2238, SAO 25665[7]
Database references
SIMBADdata

2 Lyncis is a binary star system in the northern constellation Lynx. It is visible to the naked eye, having an apparent visual magnitude of 4.44.[2] The distance to this system, judging by an annual parallax shift of 20.83±0.40 mas,[1] is around 157 light years. It is moving closer to the Sun with a heliocentric radial velocity of −2 km/s.[5]

This is a spectroscopic binary star system with an orbital period of around 3.6 years and an eccentricity of 0.5. It is classified as a probable (91% chance) eclipsing binary with the variable star designation UZ Lyn, showing a net magnitude decrease of 0.3 during an occultation.[4]

The primary component is an A-type main-sequence star[6] with a stellar classification of A2 Vs,[3] where the 's' indicates narrow (sharp) absorption lines. The orbiting companion may be the source of the X-ray emission from this system, as stars similar to the primary component do not generally produce detectable levels of X-rays.[8]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference zorec2012 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Avvakumova2013 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Lehmann2003 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference DeRosa2011 was invoked but never defined (see the help page).

and 29 Related for: 2 Lyncis information

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2 Lyncis

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2 Lyncis is a binary star system in the northern constellation Lynx. It is visible to the naked eye, having an apparent visual magnitude of 4.44. The distance...

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List of stars in Lynx

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Lyn 15 50522 33449 06h 57m 16.60s +58° 25′ 23.0″ 4.35 0.76 170 G5III-IV 2 Lyn 2 UZ 43378 30060 06h 19m 37.39s +59° 00′ 39.3″ 4.44 1.14 149 A2Vs eclipsing...

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41 Lyncis

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more distant than 41 Lyncis itself, but the two share a common proper motion and are at the same distance as each other. 41 Lyncis is the Flamsteed designation...

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Alpha Lyncis

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Alpha Lyncis (α Lyn, α Lyncis) is the brightest star in the northern constellation of Lynx with an apparent magnitude of +3.13. Unusually, it is the only...

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16 Lyncis

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temperature of 10,395 K. 16 Lyncis is suspected of being slightly variable, but this has not been confirmed. It was noted when 16 Lyncis was used as a comparison...

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31 Lyncis

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4.21 to as low as 4.27, and has the variable star designation BN Lyncis. 31 Lyncis is 1.3 billion years old with almost double the mass of the Sun. With...

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Y Lyncis

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luminosity. It is around 1,160 light years away. Y Lyncis ranges in brightness from magnitude 6.2 to 8.9. Its changes in brightness are complex with at...

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SW Lyncis

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SW Lyncis is a binary or possibly a multiple-star system in the northern constellation of Lynx, abbreviated SW Lyn. With a combined apparent visual magnitude...

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SZ Lyncis

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SZ Lyncis is a binary star system in the northern constellation of Lynx, abbreviated SZ Lyn. It is a variable star with an apparent visual magnitude that...

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RR Lyncis

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RR Lyncis is a star system in the northern constellation of Lynx, abbreviated RR Lyn. It is an eclipsing binary of the Algol type; one of the closest in...

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21 Lyncis

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21 Lyncis is a single star in the northern constellation of Lynx. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude...

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6 Lyncis

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6 Lyncis is a star in the northern constellation of Lynx, located approximately 179 light years from Earth. It is visible to the naked eye as a dim, orange-hued...

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15 Lyncis

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15 Lyncis is a binary star system in the northern constellation of Lynx. It is visible to the naked eye as a faint point of light with a combined apparent...

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12 Lyncis

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12 Lyncis, abbreviated 12 Lyn, is a triple star system in the constellation Lynx. It is visible to the naked eye as a faint point of light with a combined...

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DU Lyncis

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DU Lyncis is a single variable star in the constellation Lynx. It is a faint star but visible to the naked eye with an apparent visual magnitude of 5.15...

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UX Lyncis

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UX Lyncis is a variable star in the faint northern constellation of Lynx, positioned about 3° to the south of the 4th magnitude star 10 Ursae Majoris....

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1 Lyncis

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1 Lyncis is a single star in the northern constellation of Lynx. It is also known by its variable star designation of UW Lyncis; 1 Lyncis is the Flamsteed...

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38 Lyncis

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38 Lyncis is a multiple star system in the northern constellation of Lynx. It located about 125 light-years from the Sun, based on parallax. When viewed...

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19 Lyncis

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19 Lyncis is a triple star system in the northern constellation of Lynx. A telescope reveals it consists of two blue-white hued stars of magnitudes 5.80...

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Omega Ursae Majoris

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normal early A stars 2 Lyncis, omicron Ursa Majoris and phiAquilae", Monthly Notices of the Royal Astronomical Society, 288 (2): 501–511, Bibcode:1997MNRAS...

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24 Lyncis

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24 Lyncis is a single star in the northern constellation of Lynx. It is visible to the naked eye as a dim, white-hued star with an apparent visual magnitude...

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36 Lyncis

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constellation of Lynx. It has the variable star designation of EI Lyncis, while 36 Lyncis is the Flamsteed designation. This object is visible to the naked...

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41 Lyncis b

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41 Lyncis b (abbreviated 41 Lyn b), also designated HD 81688 b and named Arkas /ˈɑːrkəs/, is an extrasolar planet approximately 280 light-years from Earth...

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27 Lyncis

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27 Lyncis is a single star in the northern constellation of Lynx. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude...

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V391 Pegasi

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"Pulsations in Subdwarf B Stars". Journal of Astrophysics and Astronomy. 26 (2–3): 261–271. Bibcode:2005JApA...26..261J. doi:10.1007/BF02702334. S2CID 13814916...

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List of stars in Ursa Major

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53910 11h 01m 50.39s +56° 22′ 56.4″ 2.37 0.41 79 A1V Merak, Mirak Phecda γ 64 103287 58001 11h 53m 49.74s +53° 41′ 41.0″ 2.44 0.36 84 A0V SB Phad, Phecda,...

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6 Lyncis b

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6 Lyncis b (abbreviated 6 Lyn b) is an extrasolar planet orbiting the K-type subgiant star 6 Lyncis which is approximately 182 light years away in the...

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List of proper names of stars

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Nautical Allowance for Rapid Position Finding". The Geographical Journal. 92 (2). Royal Geographical Society: 137, 145. Bibcode:1938GeogJ..92..133M. doi:10...

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Semiregular variable star

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Star Observers. 34 (2): 156–164. Bibcode:2006JAVSO..34..156O. EU Delphini and the Small-Amplitude Pulsating Red Giants Y Lyncis Pulsating variable stars...

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