20122+1712 BPM2054

 
 
20h 12m 09.41s +17 12' 05.3" P.A. 267.00 sep 31.2 mag 11.56,15.21
 
 
Coord 2000
20122+1712
Discov num
BPM2054
Comp
Coord arcsec 2000
20 12 09.41 +17 12 05.3
Date first
1992
Date last
2015
Obs
9
Pa first
267
Pa last
267
P.A. Now (θ)
267°
Sep first
31.4
Sep last
31.2
Sep. Now (ρ)
31.2"
Mag pri
11.56
Mag sec
15.21
delta mag (ΔM)
3.65
Spectral class
Pri motion ra
-024
Sec motion ra
-018
Pri motion dec
-018
Sec motion dec
-007
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.418
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
267
Precise sep
31.233
Constellation
Sagitta
Tycho2
1622-01974-1
Gaia DR2
91553296512
HD
351807
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20122+1712 BPM2054 1998 2 267 31.3 11.56 15.21 NV 201209.41+171205.3
20122+1712 BPM2054 2001 3 267 31.3 11.56 15.21 NV 201209.41+171205.3
20122+1712 BPM2054 2010 4 267 30.7 11.56 15.21 NV 201209.41+171205.3
20122+1712 BPM2054 2015 5 267 31.3 11.56 15.21 NV 201209.41+171205.3

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