20187+2001 HDS2901

 
 
20h 18m 44.89s +20 00' 59.1" P.A. 47 sep 0.2 mag 9.98,12.23 Sp F5 dist. 546.45 pc (1782.52 l.y.)
 
 
Coord 2000
20187+2001
Discov num
HDS2901
Comp
Coord arcsec 2000
20 18 44.89 +20 00 59.1
Date first
1991
Date last
1991
Obs
1
Pa first
47
Pa last
47
P.A. Now (θ)
47°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.98
Mag sec
12.23
delta mag (ΔM)
2.25
Spectral class
F5 (yellow-white)
Pri motion ra
-002
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
47
Precise sep
0.226
Constellation
Sagitta
SAO
105952
HIP
100130
Tycho2
1639-00496-1
Gaia DR2
10328310528
HD
351972
BD
BD+19 4362
Distance
546.45
Distance ly
1782.52
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20187+2001 HDS2901 1991 1 47 0.2 9.98 12.23 F5 201844.89+200059.1

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