18521+1635 BPM 871

 
 
18h 52m 07.65s +16 34' 37.2" P.A. 188 sep 76.6 mag 13.09,14.71
 
 
Coord 2000
18521+1635
Discov num
BPM 871
Comp
Coord arcsec 2000
18 52 07.65 +16 34 37.2
Date first
1994
Date last
2010
Obs
4
Pa first
188
Pa last
188
P.A. Now (θ)
188°
Sep first
76.4
Sep last
76.6
Sep. Now (ρ)
76.6"
Mag pri
13.09
Mag sec
14.71
delta mag (ΔM)
1.62
Spectral class
Pri motion ra
-011
Sec motion ra
-011
Pri motion dec
-002
Sec motion dec
-019
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.774
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
187.6
Precise sep
76.56
Cdsa2 id
BPM 871
Constellation
Hercules
Ra deg
18.868791666666667
De deg
16.576999999999998
last precise pa
187.6
last precise sep
76.56
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18521+1635 BPM 871 1999 2 188 76.4 13.10 14.77 NV 185207.65+163437.2
18521+1635 BPM 871 2001 3 188 76.4 13.10 14.77 NV 185207.65+163437.2
18521+1635 BPM 871 2010 4 188 76.5 13.09 14.71 NV 185207.65+163437.2

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