21452+2914 UC 4550

 
 
21h 45m 10.80s +29 14' 21.5" P.A. 15 sep 42.5 mag 8.60,15.70 Sp K2III
 
 
Coord 2000
21452+2914
Discov num
UC 4550
Comp
Coord arcsec 2000
21 45 10.80 +29 14 21.5
Date first
1999
Date last
2015
Obs
3
Pa first
16
Pa last
15
P.A. Now (θ)
15°
Sep first
43.0
Sep last
42.5
Sep. Now (ρ)
42.5"
Mag pri
8.60
Mag sec
15.70
delta mag (ΔM)
7.1
Spectral class
K2III (yellow-orange)
Pri motion ra
+058
Sec motion ra
+054
Pri motion dec
+018
Sec motion dec
+004
Notes
V (Proper motion indicates physical)
rPM=0.24 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
14.5
Precise sep
42.512
Cdsa2 id
UC 4550
Constellation
Cygnus
Ra deg
21.753
De deg
29.239305555555557
last precise pa
14.5
last precise sep
42.512
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21452+2914 UC 4550 2000 2 16 43.0 8.60 15.70 V 214510.80+291421.5
21452+2914 UC 4550 2002 2 15 43.1 8.60 15.70 V 214510.80+291421.5
21452+2914 UC 4550 2015 3 15 42.5 8.60 15.70 K2III V 214510.80+291421.5

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