20222+1623 STF2670AB

 
 
20h 22m 12.39s +16 22' 49.4" P.A. 153.00 sep 30.0 mag 8.99,9.19 Sp A8V dist. 934.58 pc (3048.6 l.y.)
 
 
Coord 2000
20222+1623
Discov num
STF2670
Comp
AB
Coord arcsec 2000
20 22 12.39 +16 22 49.4
Date first
1829
Date last
2019
Obs
42
Pa first
151
Pa last
153
P.A. Now (θ)
153°
Sep first
30.6
Sep last
30.0
Sep. Now (ρ)
30"
Mag pri
8.99
Mag sec
9.19
delta mag (ΔM)
0.2
Spectral class
A8V (white)
Pri motion ra
+011
Sec motion ra
+001
Pri motion dec
+000
Sec motion dec
+004
Notes
U Z (Proper motion indicates non-physical, Parallax indicates components are physical)
Visually invisible, K-band or other infrared star rPM=0.979
This double is not physical.
 
 
20222+1623 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 106029 20222+1623 STF2670 AB 1829 2019 42 153 30.0 8.99 9.19 0.20 <===
Show 106029 20222+1623 GUI 31 AC 1892 2016 21 129 37.0 8.99 10.60 1.61
Show 106029 20222+1623 ABH 139 AD 1900 2016 15 143 93.0 8.99 11.67 2.68
Show 106030 20222+1623 STF2670 BC 1829 2019 29 77 15.9 9.19 10.60 1.41
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
153.2
Precise sep
30.036
Constellation
Delphinus
SAO
106029
HIP
100446
Tycho2
1631-02374-1
Gaia DR2
27052705280
HD
355469
BD
BD+15 4142
Distance
934.58
Distance ly
3048.6
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20222+1623 STF2670 AB 2004 31 154 29.6 8.99 9.19 A8V ZD 202212.39+162249.4
20222+1623 STF2670 AB 2010 33 153 29.5 8.99 9.19 A8V ZD 202212.39+162249.4
20222+1623 STF2670 AB 2013 35 153 29.4 8.99 9.19 A8V U Z 202212.39+162249.4
20222+1623 STF2670 AB 2016 36 154 30.0 8.99 9.19 A8V U Z 202212.39+162249.4
20222+1623 STF2670 AB 2019 42 153 30.0 8.99 9.19 A8V U Z 202212.39+162249.4

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