20122+2231 DAM 202AB

 
 
20h 12m 09.85s +22 30' 47.4" P.A. 34 sep 10.3 mag 10.90,12.60 Sp A2
 
 
Coord 2000
20122+2231
Discov num
DAM 202
Comp
AB
Coord arcsec 2000
20 12 09.85 +22 30 47.4
Date first
1894
Date last
2015
Obs
9
Pa first
37
Pa last
34
P.A. Now (θ)
34°
Sep first
10.8
Sep last
10.3
Sep. Now (ρ)
10.3"
Mag pri
10.90
Mag sec
12.60
delta mag (ΔM)
1.7
Spectral class
A2 (white)
Pri motion ra
+002
Sec motion ra
+004
Pri motion dec
+000
Sec motion dec
+000
Notes
rPM=0.5
Nature of this double is uncertain.
 
 
20122+2231 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20122+2231 DAM 202 AB 1894 2015 9 34 10.3 10.90 12.60 1.70 <===
Show 20122+2231 DAM 202 AC 2000 2015 7 344 10.0 10.90 14.30 3.40
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
34.3
Precise sep
10.291
Constellation
Vulpecula
SAO
88342
Tycho2
2154-00643-1
Gaia DR2
51425052032
HD
346021
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20122+2231 DAM 202 AB 2000 4 35 10.3 10.90 12.60 A2 D 201209.85+223047.4
20122+2231 DAM 202 AB 2001 5 34 10.3 10.90 12.60 A2 D 201209.85+223047.4
20122+2231 DAM 202 AB 2015 5 34 10.3 10.90 12.60 A2 201209.85+223047.4

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