20340+1206 MAD   8

 
 
20h 33m 57.09s +12 06' 05.9" P.A. 245 sep 20.9 mag 8.11,11.60 Sp K5 dist. 342.47 pc (1117.14 l.y.)
 
 
Coord 2000
20340+1206
Discov num
MAD   8
Comp
Coord arcsec 2000
20 33 57.09 +12 06 05.9
Date first
1843
Date last
2015
Obs
18
Pa first
249
Pa last
245
P.A. Now (θ)
245°
Sep first
18.3
Sep last
20.9
Sep. Now (ρ)
20.9"
Mag pri
8.11
Mag sec
11.60
delta mag (ΔM)
3.49
Spectral class
K5 (yellow-orange)
Pri motion ra
+012
Sec motion ra
+002
Pri motion dec
+008
Sec motion dec
-003
Notes
rPM=1.031
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
245.2
Precise sep
20.891
Constellation
Delphinus
SAO
106247
HIP
101482
Tycho2
1096-01508-1
Gaia DR2
29772067328
HD
195944
BD
BD+11 4311
Distance
342.47
Distance ly
1117.14
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20340+1206 MAD 8 2004 10 245 20.8 8.70 10.90 K5 D 203357.09+120605.9
20340+1206 MAD 8 2010 13 245 20.7 8.11 11.60 K5 203357.09+120605.9
20340+1206 MAD 8 2015 14 245 20.9 8.11 11.60 K5 203357.09+120605.9

If you need more information about this double, apply for a data request form to the WDS.