20138+2021 HJ 2941

 
 
20h 13m 45.64s +20 21' 29.9" P.A. 109 sep 6.2 mag 10.40,10.87 Sp F8
 
 
Coord 2000
20138+2021
Discov num
HJ 2941
Comp
Coord arcsec 2000
20 13 45.64 +20 21 29.9
Date first
1831
Date last
2015
Obs
19
Pa first
111
Pa last
109
P.A. Now (θ)
109°
Sep first
4.0
Sep last
6.2
Sep. Now (ρ)
6.2"
Mag pri
10.40
Mag sec
10.87
delta mag (ΔM)
0.47
Spectral class
F8 (yellow-white)
Pri motion ra
-043
Sec motion ra
+009
Pri motion dec
+014
Sec motion dec
-002
Notes
N V (See Notes, Proper motion indicates physical)
rPM=1.203
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
109.4
Precise sep
6.193
Constellation
Sagitta
SAO
88372
Tycho2
1626-00006-1
Gaia DR2
69191537280
HD
351703
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20138+2021 HJ 2941 2000 11 109 6.2 10.40 10.87 F8 DV 201345.64+202129.9
20138+2021 HJ 2941 2011 12 109 6.2 10.40 10.87 F8 NVD 201345.64+202129.9
20138+2021 HJ 2941 2013 14 109 6.2 10.40 10.87 F8 NV 201345.64+202129.9
20138+2021 HJ 2941 2015 16 110 6.1 10.40 10.87 F8 NV 201345.64+202129.9

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