20406+2948 HO  137

 
 
20h 40m 36.26s +29 48' 19.6" P.A. 352.00 sep 0.7 mag 6.13,9.26 Sp A2V dist. 74.24 pc (242.17 l.y.)
 
 
Coord 2000
20406+2948
Discov num
HO  137
Comp
Coord arcsec 2000
20 40 36.26 +29 48 19.6
Date first
1885
Date last
2008
Obs
28
Pa first
279
Pa last
352
P.A. Now (θ)
352°
Sep first
1.2
Sep last
0.7
Sep. Now (ρ)
0.7"
Mag pri
6.13
Mag sec
9.26
delta mag (ΔM)
3.13
Spectral class
A2V (white)
Pri motion ra
+020
Sec motion ra
Pri motion dec
+046
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
352.1
Precise sep
0.715
Constellation
Cygnus
SAO
88997
HIP
102033
Tycho2
2182-00750-1
Gaia DR2
93819635584
HD
197120
HR
7917
BD
BD+29 4131
Distance
74.24
Distance ly
242.17
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20406+2948 HO 137 2000 25 342 0.8 6.13 9.26 A2V N D 204036.26+294819.6
20406+2948 HO 137 2002 26 345 0.7 6.13 9.26 A2V N D 204036.26+294819.6
20406+2948 HO 137 2008 28 352 0.7 6.13 9.26 A2V N D 204036.26+294819.6

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