21137+4453 LDS2498

 
 
21h 13m 08.57s +44 53' 00.0" P.A. 316 sep 13 mag 17.40,18.80 dist. 27.09 pc (88.37 l.y.)
 
 
Coord 2000
21137+4453
Discov num
LDS2498
Comp
Coord arcsec 2000
21 13 08.57 +44 53 00.0
Date first
1954
Date last
1954
Obs
1
Pa first
316
Pa last
316
P.A. Now (θ)
316°
Sep first
13.0
Sep last
13.0
Sep. Now (ρ)
13"
Mag pri
17.40
Mag sec
18.80
delta mag (ΔM)
1.4
Spectral class
Pri motion ra
+051
Sec motion ra
Pri motion dec
+016
Sec motion dec
Notes
X (Dubious double)
rPM=1.072
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Spectr
A1IV+A1IV
Constellation
Ophiuchus
SAO
160332
HIP
84012
HD
155125
HR
6378
GC
23158
GL
Gl 656.1A
BD
BD-15 4467
Bayer
Eta Ophiuchi
Bayer name
Eta Oph
Flamsteed
35 Ophiuchi
Flamsteed name
35 Oph
Distance
27.09
Distance ly
88.37
last precise pa
316
last precise sep
13
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21137+4453 LDS2498 1954 1 316 13.0 17.40 18.80 X 211308.57+445300.0

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