20175+4538 STF2667

 
 
20h 17m 30.44s +45 38' 16.0" P.A. 224 sep 8 mag 8.66,9.00 Sp A5
 
 
Coord 2000
20175+4538
Discov num
STF2667
Comp
Coord arcsec 2000
20 17 30.44 +45 38 16.0
Date first
1821
Date last
2018
Obs
38
Pa first
225
Pa last
224
P.A. Now (θ)
224°
Sep first
8.3
Sep last
8.0
Sep. Now (ρ)
8"
Mag pri
8.66
Mag sec
9.00
delta mag (ΔM)
0.34
Spectral class
A5 (white)
Pri motion ra
+000
Sec motion ra
-003
Pri motion dec
-012
Sec motion dec
-014
Notes
rPM=0.252 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
224.3
Precise sep
8.023
Constellation
Cygnus
SAO
49431
Tycho2
3572-00667-1
Gaia DR2
81770951424
HD
193267
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20175+4538 STF2667 2004 29 224 8.4 8.66 9.00 A5 D 201730.44+453816.0
20175+4538 STF2667 2015 33 224 8.0 8.66 9.00 A5 201730.44+453816.0
20175+4538 STF2667 2018 34 224 8.0 8.66 9.00 A5 201730.44+453816.0

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