20276+4202 HDS2928

 
 
20h 27m 36.77s +42 02' 07.6" P.A. 21 sep 0.2 mag 7.89,8.30 Sp B2IV dist. 787.4 pc (2568.5 l.y.)
 
 
Coord 2000
20276+4202
Discov num
HDS2928
Comp
Coord arcsec 2000
20 27 36.77 +42 02 07.6
Date first
1991
Date last
2007
Obs
2
Pa first
24
Pa last
21
P.A. Now (θ)
21°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
7.89
Mag sec
8.30
delta mag (ΔM)
0.41
Spectral class
B2IV (blue-white)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21.1
Precise sep
0.176
Constellation
Cygnus
SAO
49653
HIP
100912
Tycho2
3160-01542-1
Gaia DR2
94786212480
HD
195089
BD
BD+41 3758
Distance
787.4
Distance ly
2568.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20276+4202 HDS2928 1991 1 24 0.2 7.89 8.30 B2IV 202736.77+420207.6
20276+4202 HDS2928 2007 2 21 0.2 7.89 8.30 B2IV 202736.77+420207.6

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