18540+2728 LDS4801

 
 
18h 53m 58.00s +27 28' 08.4" P.A. 351 sep 244.4 mag 10.49,15.30 Sp G5
 
 
Coord 2000
18540+2728
Discov num
LDS4801
Comp
Coord arcsec 2000
18 53 58.00 +27 28 08.4
Date first
1960
Date last
2010
Obs
4
Pa first
351
Pa last
351
P.A. Now (θ)
351°
Sep first
248.0
Sep last
244.4
Sep. Now (ρ)
244.4"
Mag pri
10.49
Mag sec
15.30
delta mag (ΔM)
4.81
Spectral class
G5 (yellow)
Pri motion ra
-058
Sec motion ra
-002
Pri motion dec
-073
Sec motion dec
-134
Notes
rPM=0.618
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
351.2
Precise sep
244.42
Constellation
Lyra
last precise pa
351.2
last precise sep
244.42
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18540+2728 LDS4801 1960 1 351 248.0 10.49 14.80 185358.00+272808.4
18540+2728 LDS4801 2000 2 351 245.3 10.49 15.30 185358.00+272808.4
18540+2728 LDS4801 2002 3 351 245.0 10.49 15.30 185358.00+272808.4
18540+2728 LDS4801 2010 4 351 244.4 10.49 15.30 G5 185358.00+272808.4

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