19407-0037 CHR  88Aa,Ab

 
 
19h 40m 43.31s -00 37' 16.7" P.A. 337.90 sep 0.1 mag 5.90,7.60 Sp A3IV dist. 107.99 pc (352.26 l.y.)
 
 
Coord 2000
19407-0037
Discov num
CHR  88
Comp
Aa,Ab
Coord arcsec 2000
19 40 43.31 -00 37 16.7
Date first
1985
Date last
2019
Obs
20
Pa first
41
Pa last
348
P.A. Now (θ)
337.9°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.08"
Mag pri
5.90
Mag sec
7.60
delta mag (ΔM)
1.7
Spectral class
A3IV (white)
Pri motion ra
+017
Sec motion ra
Pri motion dec
+017
Sec motion dec
Notes
N O (See Notes, Orbital solution)
Visually invisible, K-band or other infrared star This double is physical.
 
 
19407-0037 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 143678 19407-0037 CHR 88 Aa,Ab 1985 2019 20 338 0.1 5.90 7.60 1.70 Y <===
Show 45 Aql 143678 19407-0037 HJ 2888 AB 1830 2015 8 352 40.3 5.66 14.06 8.40
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
348.3
Precise sep
0.088
Constellation
Aquila
SAO
143678
HIP
96807
Tycho2
0479-00986-1
HD
185762
HR
7480
GC
27222
ADS
12775
Flamsteed
45 Aquilae
Flamsteed name
45 Aql
Distance
107.99
Distance ly
352.26
last precise pa
348.3
last precise sep
0.088
 
 
ORBITAL ELEMENTS
 
 
Period (P)10.155y± 0.033 Periastron (T)2012.847y± 0.056 Semi-major axis (a)0.0631a± 0.0006
Eccentricity (e)0.463± 0.01 Inclination (i)180° Longitude of periastron (ω)
Node (Ω)191.2°± 1.1 Note Grade3(1=Definitive, 9=Indet.)
Equinox Last observation2018
label rho theta
2000 0.077 331.7
2001 0.061 305.6
2002 0.042 256.5
2003 0.036 158.8
2004 0.054 91.3
2005 0.072 59.4
2006 0.084 38.9
2007 0.091 22.6
2008 0.092 7.8
2009 0.088 352.6
2010 0.079 334.9
2011 0.064 310.5
2012 0.045 267.0
2013 0.034 174.7
2014 0.051 98.4
2015 0.069 63.3
2016 0.083 41.7
2017 0.090 25.0
2018 0.092 10.1
2019 0.089 355.1
2020 0.081 337.9
2021 0.067 315.1
2022 0.048 276.1
2023 0.034 191.4
2024 0.048 106.5
2025 0.067 67.5
2026 0.081 44.6
2027 0.089 27.4
2028 0.092 12.4
2029 0.090 357.5
2030 0.083 340.8

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
 
grafico orbita






wds19407-0037e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19407-0037 CHR 88 Aa,Ab 2006 11 33 0.1 5.66   A3IV NOD 194043.31-003716.7
19407-0037 CHR 88 Aa,Ab 2009 12 346 0.1 5.90 7.60 A3IV NOD 194043.31-003716.7
19407-0037 CHR 88 Aa,Ab 2014 16 252 0.1 5.90 7.60 A3IV NO 194043.31-003716.7
19407-0037 CHR 88 Aa,Ab 2017 17 197 0.1 5.90 7.60 A3IV NO 194043.31-003716.7
19407-0037 CHR 88 Aa,Ab 2018 19 4 0.1 5.90 7.60 A3IV NO 194043.31-003716.7
19407-0037 CHR 88 Aa,Ab 2019 20 348 0.1 5.90 7.60 A3IV NO 194043.31-003716.7

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