Coord 2000 | 18443+3940 | Discov num | STFA 37 | Comp | AB,CD | Coord arcsec 2000 | 18 44 20.34 +39 40 12.4 | ||||
Date first | 1830 | Date last | 2021 | Obs | 98 | ||||||
Pa first | 173 | Pa last | 171.8 | P.A. Now (θ) | 171.8° | ||||||
Sep first | 207.3 | Sep last | 209.4 | Sep. Now (ρ) | 209.4" | ||||||
Mag pri | 4.67 | Mag sec | 4.56 | delta mag (ΔM) | 0.11 | Spectral class | A4V (white) | ||||
Pri motion ra | +011 | Sec motion ra | +006 | ||||||||
Pri motion dec | +061 | Sec motion dec | +052 | ||||||||
Notes | N Z (See Notes, Parallax indicates components are physical) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 67310 | 18 44 20 +39 40 12 | STF 2382 AB | 2021 | 641 | 345 | 2.2 | 5.15 | 6.10 | 0.95 | Y | ||
Show | Double Double | 67310 | 18 44 20 +39 40 12 | STFA 37 AB,CD | 2021 | 98 | 172 | 209.4 | 4.67 | 4.56 | 0.11 | <=== | |
Show | 67310 | 18 44 20 +39 40 12 | STFA 37 AD | 2021 | 19 | 172 | 208.2 | 5.15 | 5.38 | 0.23 | |||
Show | 67310 | 18 44 20 +39 40 12 | STFA 37 AI | 2021 | 24 | 137 | 150.4 | 5.15 | 10.12 | 4.97 | |||
Show | 67315 | 18 44 20 +39 40 14 | STFA 37 BC | 2011 | 14 | 172 | 210.9 | 6.10 | 5.25 | 0.85 | |||
Show | 67315 | 18 44 20 +39 40 14 | STFA 37 BD | 2021 | 12 | 171 | 212.5 | 6.10 | 5.38 | 0.72 | |||
Show | 18 44 20 +39 40 14 | STFA 37 BI | 2015 | 10 | 137 | 151.3 | 6.10 | 10.12 | 4.02 | ||||
Show | 67315 | 18 44 23 +39 36 46 | CHR 77 Ca,Cb | 2005 | 5 | 225 | 0.1 | 5.25 | Y | ||||
Show | 67315 | 18 44 23 +39 36 46 | STF 2383 CD | 2021 | 641 | 75 | 2.3 | 5.25 | 5.38 | 0.13 | Y | ||
Show | 67315 | 18 44 23 +39 36 46 | SHJ 277 CD,F | 2015 | 3 | 0 | 93.3 | 4.56 | 12.70 | 8.14 | |||
Show | 67315 | 18 44 23 +39 36 46 | SHJ 277 CD,G | 2015 | 4 | 293 | 75.1 | 4.56 | 14.20 | 9.64 | |||
Show | 67315 | 18 44 23 +39 36 46 | SHJ 277 CD,H | 2015 | 4 | 313 | 95.7 | 4.56 | 13.90 | 9.34 | |||
Show | 67310 | 18 44 23 +39 36 46 | STF 2383 CE | 2015 | 8 | 334 | 63.2 | 5.25 | 12.30 | 7.05 | |||
Show | 18 44 23 +39 36 46 | STFA 37 CI | 2012 | 18 | 37 | 120.4 | 5.25 | 10.12 | 4.87 | ||||
Show | 67315 | 18 44 23 +39 36 46 | STFA 37 DI | 2000 | 6 | 37 | 121.6 | 5.38 | 10.12 | 4.74 | |||
Show | 67310 | 18 44 20 +39 37 43 | SHJ 277 EF | 2021 | 16 | 37 | 45.4 | 12.30 | 12.70 | 0.40 | |||
Show | 67310 | 18 44 20 +39 37 43 | SHJ 277 EG | 2015 | 11 | 236 | 50.0 | 12.30 | 14.20 | 1.90 | |||
Show | 18 44 20 +39 37 43 | STFA 37 EI | 2015 | 7 | 68 | 108.9 | 12.30 | 10.12 | 2.18 | ||||
Show | 18 44 17 +39 37 16 | SHJ 277 GH | 2015 | 13 | 358 | 35.8 | 14.20 | 13.90 | 0.30 |
Common name | Double Double | Constellation | Lyra | SAO | 67310 | HIP | 91919 | ||||
Tycho2 | 3122-03438-2 | Gaia DR2 | 2098237660363229312 | HD | 173582 | HR | 7051 | ||||
GC | 25667 | ADS | 11635 | BD | BD+39 3509 | Bayer | Epsilon 1 Lyrae | ||||
Bayer name | Eps1 Lyr | Flamsteed | 4 Lyrae | Flamsteed name | 4 Lyr | Distance | 49.78 | ||||
Distance ly | 162.38 | Bayer greek | ε1 Lyr |
Other names | Doppia Doppia della Lira |