α Lyncis

α Lyncis (Alpha Lyncis, α Lyn) is the brightesr star? in Lynx?. It is the 3rd-magnitude? K-type? giant?, about 70 Ly?. away from the Earth?.

Physical properties

Variability

α Lyncis has been thought that a suspected variable?. It varies from 3.12^m to 3.17^m in a period of uncertain.

Historical significance

α Lyncis is sometimes called 40 Lyncis, because its Bayer designation? was invented by Baily? after Flamsteed?. Bayer marked it in his star atlas?, Uranometira? (on the plate B, Ursa Major), but he no lettered it.

Data

Astrometric (J 2000.0)

• Coodinates
  • RA?: 09^h 21^m 03.3^s
  • Dec?: +34°23′33″
• Proper motion
  • RA: -0.221 arcsec/yr
  • Dec: 0.019 arcsec/yr
• Radial verocity: 38 km/s
• Parallax: 0.025 arcsec

Physical

• Sp?: K7 III ab
• V mag?: 3.13^m
• Color index
  • B-V: 1.55 mag
  • U-B: 1.94 mag

Designations & Numbers

• Designations
  • By?: (none)
  • Bl?: α Lyn
  • Bd?: r Lyn
    
    
  • Pc?: (none)
  • Do?: T Lyn

• Former numbers
  • Pt?: 30 UMa
  • Ty?: 32 UMa
  • Fl?: 40 UMa
  • Bv?: UMa
  • 19 H?. Lyn
  • 159 B?. Lyn
  • 84 H′?Lyn
  • Pi?: IX 48

• Recent numbers
  • BAC? 3178
  • Bode? 2085
  • BD? +35°1979
  • BS? 3705
  • FK5? 352
  • GC? 12880
  • HD? 80493
  • HIC? 45860
  • HIP? 45860
  • PPM? 74424
  • SAC?
  • SAO? 61414
  • TYC? 2496-1728-1

• Special numbers
  • CSV? 101039
  • NLTT? 21514
  • NSV? 4456

References

See also