18545+3654 ES 2028BC

 
 
18H 54M 28.99S +36 55' 20.1" P.A. 135 SEP 2.1 MAG 11.20,11.60 SP G2IV
 
 
Coord 2000
18545+3654
Discov num
ES 2028
Comp
BC
Coord arcsec 2000
18 54 28.99 +36 55 20.1
Date first
1923
Date last
2008
Obs
7
Pa first
138
Pa last
135
P.A. Now (θ)
135°
Sep first
2.2
Sep last
2.1
Sep. Now (ρ)
2.1"
Mag pri
11.20
Mag sec
11.60
delta mag (ΔM)
0.4
Spectral class
G2IV (yellow)
Pri motion ra
-004
Sec motion ra
Pri motion dec
+001
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18545+3654 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Del2 Lyr 67559 18545+3654 ES 2028 AB 1923 2014 13 349 86.3 4.30 11.20 6.90
Show 67559 18545+3654 SMR 13 AD 1879 2014 14 210 193.1 4.46 8.77 4.31
Show 67559 18545+3654 SMR 13 AE 1933 2014 10 238 400.6 4.46 10.30 5.84
Show 67559 18545+3654 SMR 13 AF 1922 2014 14 245 369.4 4.46 8.80 4.34
Show 67559 18545+3654 SMR 13 AG 1930 2014 12 261 335.9 4.46 9.79 5.33
Show 67559 18545+3654 SMR 13 AH 1921 2014 14 284 229.4 4.46 8.67 4.21
Show 67559 18545+3654 SMR 13 AJ 1933 2014 9 249 279.5 4.30 12.00 7.70
Show 67559 18545+3654 SMR 13 AK 1933 2014 9 236 304.2 4.30 12.00 7.70
Show 18545+3654 ES 2028 BC 1923 2008 7 135 2.1 11.20 11.60 0.40 <===
Show 67549 18545+3654 SMR 13 HI 1999 2014 8 251 26.3 8.67 12.90 4.23
11-fold system
11 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Lyra
last precise pa
134.8
last precise sep
2.09