20414+4517 H N  73 (Deneb)

 
 
20h 41m 25.91s +45 16' 49.2" P.A. 105 sep 75.6 mag 1.25,11.70 Sp A2Iae dist. 432.9 pc (1412.12 l.y.)
 
 
Coord 2000
20414+4517
Discov num
H N  73
Comp
Coord arcsec 2000
20 41 25.91 +45 16 49.2
Date first
1837
Date last
2008
Obs
11
Pa first
103
Pa last
105
P.A. Now (θ)
105°
Sep first
108.5
Sep last
75.6
Sep. Now (ρ)
75.6"
Mag pri
1.25
Mag sec
11.70
delta mag (ΔM)
10.45
Spectral class
A2Iae (white)
Pri motion ra
+002
Sec motion ra
+006
Pri motion dec
+001
Sec motion dec
+007
Notes
N (See Notes)
rPM=0.782
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
105
Precise sep
75.55
Common name
Deneb
Meaning
queue
Other names
DENEB EL ADIGE, ARIDIF, ARRIOPH, GALLINA, Deneb Cygni
Constellation
Cygnus
SAO
49941
HIP
102098
HD
197345
HR
7924
GC
28846
BD
BD+44 3541
Bayer
Alpha Cygni
Bayer name
Alp Cyg
Flamsteed
50 Cygni
Flamsteed name
50 Cyg
Distance
432.9
Distance ly
1412.12
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20414+4517 H N 73 1998 8 105 75.8 1.25 11.70 A2Iae N D 204125.91+451649.2
20414+4517 H N 73 2008 9 105 75.6 1.25 11.70 A2Iae N D 204125.91+451649.2
20414+4517 H N 73 2010 12 104 75.4 1.25 11.70 A2Iae N 204125.91+451649.2

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