18545+3654 ES 2028AB (Del2 Lyr)

 
 
18H 54M 30.29S +36 53' 55.0" P.A. 349 SEP 86.3 MAG 4.30,11.20 SP M4II DIST. 225.73 PC (736.33 L.Y.)
 
 
Coord 2000
18545+3654
Discov num
ES 2028
Comp
AB
Coord arcsec 2000
18 54 30.29 +36 53 55.0
Date first
1923
Date last
2014
Obs
13
Pa first
350
Pa last
349
P.A. Now (θ)
349°
Sep first
87.0
Sep last
86.3
Sep. Now (ρ)
86.3"
Mag pri
4.30
Mag sec
11.20
delta mag (ΔM)
6.9
Spectral class
M4II (red)
Pri motion ra
-007
Sec motion ra
+000
Pri motion dec
+004
Sec motion dec
+003
Notes
N (See Notes)
rPM=0.877
This double is not physical.
 
 
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
 
 
Name
Del2 Lyr
Constellation
Lyra
SAO
67559
HIP
92791
Tycho2
2651-02548-1
HD
175588
HR
7139
GC
25959
BD
BD+36 3319
Bayer
Delta 2 Lyrae
Bayer name
Del2 Lyr
Flamsteed
12 Lyrae
Flamsteed name
12 Lyr
Distance
225.73
Distance ly
736.33
last precise pa
349.1
last precise sep
86.33