21122+3828 SMA 137

 
 
21h 12m 19.85s +38 28' 19.7" P.A. 122 sep 9.5 mag 11.20,12.20
 
 
Coord 2000
21122+3828
Discov num
SMA 137
Comp
Coord arcsec 2000
21 12 19.85 +38 28 19.7
Date first
1923
Date last
2012
Obs
7
Pa first
118
Pa last
122
P.A. Now (θ)
122°
Sep first
10.5
Sep last
9.5
Sep. Now (ρ)
9.5"
Mag pri
11.20
Mag sec
12.20
delta mag (ΔM)
1
Spectral class
Pri motion ra
+009
Sec motion ra
+004
Pri motion dec
+000
Sec motion dec
-002
Notes
N (See Notes)
rPM=0.598
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
122
Precise sep
9.54
Constellation
Cygnus
Tycho2
3169-02608-1
last precise pa
122
last precise sep
9.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21122+3828 SMA 137 1929 3 119 10.7 11.20 12.20 N 211219.85+382819.7
21122+3828 SMA 137 2002 4 121 9.4 11.20 12.20 N 211219.85+382819.7
21122+3828 SMA 137 2012 5 122 9.7 11.20 12.20 N 211219.85+382819.7

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