21091+0429 J   848

 
 
21h 09m 07.73s +04 28' 57.1" P.A. 141 sep 2.8 mag 10.00,12.30 Sp F8
 
 
Coord 2000
21091+0429
Discov num
J   848
Comp
Coord arcsec 2000
21 09 07.73 +04 28 57.1
Date first
1912
Date last
2015
Obs
10
Pa first
150
Pa last
141
P.A. Now (θ)
141°
Sep first
2.0
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
10.00
Mag sec
12.30
delta mag (ΔM)
2.3
Spectral class
F8 (yellow-white)
Pri motion ra
+005
Sec motion ra
Pri motion dec
-009
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
140.6
Precise sep
2.806
Constellation
Equuleus
Tycho2
0535-00670-1
last precise pa
140.6
last precise sep
2.806
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21091+0429 J 848 1998 9 145 2.5 10.23 13.00 F8 210907.73+042857.1
21091+0429 J 848 2015 10 141 2.8 10.00 12.30 F8 210907.73+042857.1

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