Coord 2000 | 18562+0412 | Discov num | STF2417 | Comp | AB | Coord arcsec 2000 | 18 56 13.18 +04 12 12.9 | ||||
Date first | 1755 | Date last | 2019 | Obs | 236 | ||||||
Pa first | 106 | Pa last | 105.5 | P.A. Now (θ) | 105.5° | ||||||
Sep first | 22.1 | Sep last | 22.435 | Sep. Now (ρ) | 22.435" | ||||||
Mag pri | 4.59 | Mag sec | 4.93 | delta mag (ΔM) | 0.34 | Spectral class | A5V+A5Vn (white/white) | ||||
Pri motion ra | +038 | Sec motion ra | +052 | ||||||||
Pri motion dec | +027 | Sec motion dec | +031 | ||||||||
Notes | N V (See Notes, Proper motion indicates physical) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | Alya | 124068 | 18 56 13 +04 12 13 | STF 2417 AB | 2019 | 236 | 106 | 22.4 | 4.59 | 4.93 | 0.34 | <=== | |
Show | 124068 | 18 56 13 +04 12 13 | STF 2417 AC | 2007 | 18 | 58 | 421.0 | 4.59 | 6.78 | 2.19 | |||
Show | 124070 | 18 56 15 +04 12 08 | STF 2417 BC | 2007 | 17 | 56 | 405.6 | 4.93 | 6.78 | 1.85 |
Common name | Alya | Var name | NSV11557 Ser | Constellation | Serpens | SAO | 124068 | ||||
HIP | 92946 | Tycho2 | 0457-00687-1 | Gaia DR2 | 4281199284413726208 | HD | 175638 | ||||
HR | 7141 | GC | 25991 | ADS | 11853 | BD | BD+04 3916 | ||||
Bayer | Theta 1 Serpentis | Bayer name | The1 Ser | Flamsteed | 63 Serpentis | Flamsteed name | 63 Ser | ||||
FK5 | 709 | Distance | 47.42 | Distance ly | 154.68 | Bayer greek | θ1 Ser |
Other names | Alga |