20100-2802 BRG  30

 
 
20h 10m 00.02s -28 01' 41.0" P.A. 283.00 sep 0.7 mag 8.65, Sp M2.5+M3.5
 
 
Coord 2000
20100-2802
Discov num
BRG  30
Comp
Coord arcsec 2000
20 10 00.02 -28 01 41.0
Date first
2008
Date last
2012
Obs
5
Pa first
280
Pa last
283
P.A. Now (θ)
283°
Sep first
0.6
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
8.65
Mag sec
delta mag (ΔM)
Spectral class
M2.5+M3.5 (red/red)
Pri motion ra
+046
Sec motion ra
Pri motion dec
-063
Sec motion dec
Notes
N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
282.6
Precise sep
0.676
Constellation
Sagittarius
Gaia DR2
50099142016
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20100-2802 BRG 30 2010 2 281 0.6 8.65   M2.5 M3.5 DK 201000.02-280141.0
20100-2802 BRG 30 2012 5 283 0.7 8.65   M2.5 M3.5 NV K 201000.02-280141.0

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