19487+1634 GRV 281

 
 
19h 48m 44.35s +16 34' 01.8" P.A. 222.00 sep 35.5 mag 8.78,9.03 Sp F2
 
 
Coord 2000
19487+1634
Discov num
GRV 281
Comp
Coord arcsec 2000
19 48 44.35 +16 34 01.8
Date first
1897
Date last
2015
Obs
20
Pa first
222
Pa last
222
P.A. Now (θ)
222°
Sep first
35.6
Sep last
35.5
Sep. Now (ρ)
35.5"
Mag pri
8.78
Mag sec
9.03
delta mag (ΔM)
0.25
Spectral class
F2 (yellow-white)
Pri motion ra
+014
Sec motion ra
+013
Pri motion dec
+017
Sec motion dec
+018
Notes
N V (See Notes, Proper motion indicates physical)
Visually invisible, K-band or other infrared star rPM=0.064 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
221.7
Precise sep
35.494
Constellation
Sagitta
SAO
105286
Tycho2
1615-02863-1
Gaia DR2
92123770368
HD
353757
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19487+1634 GRV 281 2000 11 222 35.5 8.78 9.03 D 194844.35+163401.8
19487+1634 GRV 281 2010 12 222 35.6 8.78 9.03 N D 194844.35+163401.8
19487+1634 GRV 281 2011 13 222 35.4 8.78 9.03 N D 194844.35+163401.8
19487+1634 GRV 281 2013 14 222 35.1 8.78 9.03 N 194844.35+163401.8
19487+1634 GRV 281 2015 16 222 35.5 8.78 9.03 F2 N 194844.35+163401.8

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