20001+1731 H 4 100AB (13 Sge)

 
 
20h 00m 10.43s +17 30' 09.1" P.A. 265.00 sep 23.9 mag 9.96,10.12 Sp K0
 
 
Coord 2000
20001+1731
Discov num
H 4 100
Comp
AB
Coord arcsec 2000
20 00 10.43 +17 30 09.1
Date first
1782
Date last
2013
Obs
19
Pa first
260
Pa last
265
P.A. Now (θ)
265°
Sep first
23.0
Sep last
23.9
Sep. Now (ρ)
23.9"
Mag pri
9.96
Mag sec
10.12
delta mag (ΔM)
0.16
Spectral class
K0 (yellow-orange)
Pri motion ra
+006
Sec motion ra
+003
Pri motion dec
-003
Sec motion dec
-008
Notes
N (See Notes)
Visually invisible, K-band or other infrared star rPM=0.682
Nature of this double is uncertain.
 
 
20001+1731 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 13 Sge 105522 20001+1731 H 4 100 AB 1782 2013 19 265 23.9 9.96 10.12 0.16 <===
Show 105522 20001+1731 H 4 100 AC 1896 2013 17 297 112.6 9.96 5.57 4.39
Show 105522 20001+1731 H 4 100 BC 1900 2013 5 306 97.1 10.12 5.57 4.55
Show 105522 20001+1731 BU 1477 CD 1878 2013 8 208 27.0 5.57 13.40 7.83
Show 105522 20001+1731 BU 1477 CE 1924 2001 4 115 43.0 5.57 12.99 7.42
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
265.3
Precise sep
23.87
Name
13 Sge
Constellation
Sagitta
SAO
105522
Gaia DR2
67976558208
HD
189577
HR
7645
DM
BD+17 4183
Flamsteed
13 Sagittae
Flamsteed name
13 Sge
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20001+1731 H 4 100 AB 2002 9 254 24.1 9.96 10.12 K0 N 200010.43+173009.1
20001+1731 H 4 100 AB 2010 14 254 24.2 9.96 10.12 K0 N 200010.43+173009.1
20001+1731 H 4 100 AB 2012 18 256 24.2 9.96 10.12 K0 N 200010.43+173009.1
20001+1731 H 4 100 AB 2013 19 265 23.9 9.96 10.12 K0 N 200010.43+173009.1

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