15284+4940 HJ 2784AB

 
 
15h 28m 21.76s +49 39' 32.8" P.A. 236.00 sep 16.7 mag 9.35,10.40 Sp K1IV
 
 
Coord 2000
15284+4940
Discov num
HJ 2784
Comp
AB
Coord arcsec 2000
15 28 21.76 +49 39 32.8
Date first
1879
Date last
2020
Obs
15
Pa first
229
Pa last
236
P.A. Now (θ)
236°
Sep first
17.4
Sep last
16.7
Sep. Now (ρ)
16.7"
Mag pri
9.35
Mag sec
10.40
delta mag (ΔM)
1.05
Spectral class
K1IV (yellow-orange)
Pri motion ra
+004
Sec motion ra
-009
Pri motion dec
+001
Sec motion dec
+016
Notes
U (Proper motion indicates non-physical)
rPM=1.081
This double is not physical.
 
 
15284+4940 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 45559 15284+4940 HJ 2784 AB 1879 2020 15 236 16.7 9.35 10.40 1.05 <===
Show 45559 15284+4940 HJ 2784 AC 1879 2015 11 9 41.6 9.35 12.51 3.16
Show 45559 15284+4940 ABH 85 AD 1987 2015 7 3 31.3 9.35 14.30 4.95
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
236.1
Precise sep
16.7
Constellation
Bootes
SAO
45559
Tycho2
3485-01164-1
Gaia DR2
1594493831113776896
HD
234231
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
15284+4940 HJ 2784 AB 2000 9 234 17.1 9.35 10.40 K1IV D 152821.76+493932.8
15284+4940 HJ 2784 AB 2010 10 234 17.3 9.35 10.40 K1IV D 152821.76+493932.8
15284+4940 HJ 2784 AB 2011 11 235 17.0 9.35 10.40 K1IV UD 152821.76+493932.8
15284+4940 HJ 2784 AB 2015 12 248 17.4 9.35 10.40 K1IV U 152821.76+493932.8

If you need more information about this double, apply for a data request form to the WDS.