Coord 2000 | 18213-0254 | Discov num | STFB 8 | Comp | Coord arcsec 2000 | 18 21 18.60 -02 53 55.8 | |||||
Date first | 1835 | Date last | 2010 | Obs | 25 | ||||||
Pa first | 77 | Pa last | 54.2 | P.A. Now (θ) | 54.2° | ||||||
Sep first | 110.9 | Sep last | 251.38 | Sep. Now (ρ) | 251.38" | ||||||
Mag pri | 3.34 | Mag sec | 10.87 | delta mag (ΔM) | 7.53 | Spectral class | K2IIIab (yellow-orange) | ||||
Pri motion ra | -548 | Sec motion ra | +000 | ||||||||
Pri motion dec | -701 | Sec motion dec | -007 | ||||||||
Notes | N L U (See Notes, Linear solution, Proper motion indicates non-physical) |
Name | Eta Ser | Var name | NSV10675 Ser | Constellation | Serpens | SAO | 142241 | ||||
HIP | 89962 | Tycho2 | 5102-00416-1 | HD | 168723 | HR | 6869 | ||||
GC | 25046 | GL | Gl 711 | BD | BD-02 4599 | Bayer | Eta Serpentis | ||||
Bayer name | Eta Ser | Flamsteed | 58 Serpentis | Flamsteed name | 58 Ser | FK5 | 688 | ||||
Distance | 18.54 | Distance ly | 60.48 | Bayer greek | η Ser |