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
 
 
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 18545+3654 SMR 13 AD 1879 2014 14 210 193.1 4.46 8.77 4.31
Show 18545+3654 SMR 13 AE 1933 2014 10 238 400.6 4.46 10.30 5.84
Show 18545+3654 SMR 13 AF 1922 2014 14 245 369.4 4.46 8.80 4.34
Show 18545+3654 SMR 13 AG 1930 2014 12 261 335.9 4.46 9.79 5.33
Show 18545+3654 SMR 13 AH 1921 2014 14 284 229.4 4.46 8.67 4.21
Show 18545+3654 SMR 13 AJ 1933 2014 9 249 279.5 4.30 12.00 7.70
Show 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 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
 
 
Precise pa
349.1
Precise sep
86.33
Name
Del2 Lyr
Cdsa2 id
ES 2028 AB
Constellation
Lyra
SAO
67559
HD
175588
HR
7139
Bayer
Delta 2 Lyrae
Bayer name
Del2 Lyr
Flamsteed
12 Lyrae
Flamsteed name
12 Lyr
Ra deg
18.908413888888887
De deg
36.89861111111111
last precise pa
349.1
last precise sep
86.33
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18545+3654 ES 2028 AB 1995 5 349 88.3 4.30 11.20 M4II N D 185430.29+365355.0
18545+3654 ES 2028 AB 2009 7 351 86.6 4.30 11.20 M4II N D 185430.29+365355.0
18545+3654 ES 2028 AB 2010 8 349 87.9 4.30 11.20 M4II N D 185430.29+365355.0
18545+3654 ES 2028 AB 2011 10 350 87.3 4.30 11.20 M4II N D 185430.29+365355.0
18545+3654 ES 2028 AB 2012 12 350 86.5 4.30 11.20 M4II N 185430.29+365355.0
18545+3654 ES 2028 AB 2014 13 349 86.3 4.30 11.20 M4II N 185430.29+365355.0

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