17340-7808 HJ 4937 AB,C

17h 33m 59.78s -78° 08' 08.1" P.A. 223.00 sep 34.7 mag 9.35,12.84 Sp A4V

Coord 2000 17340-7808 Discov num HJ 4937 Comp AB,C Coord arcsec 2000 17 33 59.78 -78 08 08.1
Date first 1835 Date last 2000 Obs 4
Pa first 229 Pa last 222.9 P.A. Now (θ) 222.9°
Sep first 30.0 Sep last 34.67 Sep. Now (ρ) 34.67"
Mag pri 9.35 Mag sec 12.84 delta mag (ΔM) 3.49 Spectral class A4V (white)
Pri motion ra -004 Sec motion ra -001
Pri motion dec -012 Sec motion dec -028
Notes




rPM=0.581

Nature of this double is uncertain.



17340-7808 SYSTEM COMPONENTS

Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 157512 257508 17 33 60 -78 08 08 RST 3093 AB 1991 3 246 0.4 8.85 9.52 0.67
Show 257508 17 33 60 -78 08 08 HJ 4937 AB,C 2000 4 223 34.7 9.35 12.84 3.49 <===
Show 257508 17 33 60 -78 08 08 DAW 217 AB,D 2000 3 185 31.8 8.47 14.80 6.33


Quadruple system
5 estimated visually detectable stars in this system



OTHER CATALOGS AND DESIGNATIONS

Constellation Apus SAO 257508 Tycho2 9448-01415-1 Gaia DR2 5776856494885384448
HD 157512