21172+0438 HU  274

 
 
21h 17m 13.94s +04 37' 35.5" P.A. 148 sep 4.2 mag 8.30,15.60 Sp K5
 
 
Coord 2000
21172+0438
Discov num
HU  274
Comp
Coord arcsec 2000
21 17 13.94 +04 37 35.5
Date first
1900
Date last
1945
Obs
3
Pa first
149
Pa last
148
P.A. Now (θ)
148°
Sep first
4.2
Sep last
4.2
Sep. Now (ρ)
4.2"
Mag pri
8.30
Mag sec
15.60
delta mag (ΔM)
7.3
Spectral class
K5 (yellow-orange)
Pri motion ra
-012
Sec motion ra
Pri motion dec
-024
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
147.5
Precise sep
4.18
Constellation
Equuleus
Tycho2
0536-01370-1
HD
202665
last precise pa
147.5
last precise sep
4.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21172+0438 HU 274 1945 3 148 4.2 8.30 15.60 K5 211713.94+043735.5

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