20159+4307 BRT2257

 
 
20h 15m 54.82s +43 07' 49.2" P.A. 101 sep 3.4 mag 10.85,12.10
 
 
Coord 2000
20159+4307
Discov num
BRT2257
Comp
Coord arcsec 2000
20 15 54.82 +43 07 49.2
Date first
1892
Date last
2006
Obs
3
Pa first
103
Pa last
101
P.A. Now (θ)
101°
Sep first
2.8
Sep last
3.4
Sep. Now (ρ)
3.4"
Mag pri
10.85
Mag sec
12.10
delta mag (ΔM)
1.25
Spectral class
Pri motion ra
+002
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
101.2
Precise sep
3.439
Constellation
Cygnus
Tycho2
3163-00693-1
Gaia DR2
76882658944
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20159+4307 BRT2257 2006 3 101 3.4 10.85 12.10 201554.82+430749.2

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