20212+2507 POU4392

 
 
20h 21m 09.47s +25 07' 24.0" P.A. 332.00 sep 10.2 mag 10.98,11.90 Sp A2
 
 
Coord 2000
20212+2507
Discov num
POU4392
Comp
Coord arcsec 2000
20 21 09.47 +25 07 24.0
Date first
1895
Date last
2015
Obs
13
Pa first
333
Pa last
332
P.A. Now (θ)
332°
Sep first
10.0
Sep last
10.2
Sep. Now (ρ)
10.2"
Mag pri
10.98
Mag sec
11.90
delta mag (ΔM)
0.92
Spectral class
A2 (white)
Pri motion ra
-002
Sec motion ra
-005
Pri motion dec
-009
Sec motion dec
-007
Notes
rPM=0.391
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
331.7
Precise sep
10.229
Constellation
Vulpecula
Tycho2
2159-01417-1
Gaia DR2
14587021056
HD
340162
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20212+2507 POU4392 1998 3 332 10.2 10.98 11.90 A2 D 202109.47+250724.0
20212+2507 POU4392 2002 5 332 10.2 10.98 11.90 A2 D 202109.47+250724.0
20212+2507 POU4392 2010 6 334 9.9 10.98 11.90 A2 202109.47+250724.0
20212+2507 POU4392 2011 7 332 10.2 10.98 11.90 A2 202109.47+250724.0
20212+2507 POU4392 2015 9 332 10.2 10.98 11.90 A2 202109.47+250724.0

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