19477+1836 J   827 (Del Sge)

 
 
19h 47m 38.25s +18 35' 26.4" P.A. 35.00 sep 3.2 mag 11.70,12.80
 
 
Coord 2000
19477+1836
Discov num
J   827
Comp
Coord arcsec 2000
19 47 38.25 +18 35 26.4
Date first
1912
Date last
2016
Obs
8
Pa first
35
Pa last
35
P.A. Now (θ)
35°
Sep first
2.0
Sep last
3.2
Sep. Now (ρ)
3.2"
Mag pri
11.70
Mag sec
12.80
delta mag (ΔM)
1.1
Spectral class
Pri motion ra
+000
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
34.6
Precise sep
3.168
Name
Del Sge
Constellation
Sagitta
SAO
105259
Tycho2
1619-00285-1
Gaia DR2
1824537021182342784
HD
350545
HR
7536
DM
BD+18 4240
Bayer
Delta Sagittae
Bayer name
Del Sge
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19477+1836 J 827 1955 5 33 2.8 10.50 13.00 194741.84+183521.3
19477+1836 J 827 2000 6 35 3.2 10.50 13.00 194738.25+183526.4
19477+1836 J 827 2015 7 35 2.9 11.70 12.80 194738.25+183526.4

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