19407-0037 CHR  88Aa,Ab

 
 
19h 40m 43.31s -00 37' 16.7" P.A. 206.4 sep 0.08 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
2014
Obs
16
Pa first
41
Pa last
252
P.A. Now (θ)
206.4°
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)
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 2014 16 206 0.1 5.90 7.60 1.70 Y <===
Show 45 Aql 143678 19407-0037 HJ 2888 AB 1830 2000 7 352 40.1 5.66 14.06 8.40
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
251.6
Precise sep
0.061
Constellation
Aquila
SAO
143678
HIP
96807
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
251.6
last precise sep
0.061
 
 
ORBITAL ELEMENTS
 
 
Period (P)20.56y± 0.14 Periastron (T)1996.01y± 1.04 Semi-major axis (a)0.0854a± 0.0024
Eccentricity (e)0.058± 0.03 Inclination (i)150.8°± 7 Longitude of periastron (ω)328.1°± 27.5
Node (Ω)185.7°± 12.6 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.079 145.2
2001 0.077 126.9
2002 0.076 107.9
2003 0.077 89.0
2004 0.080 70.8
2005 0.083 54.0
2006 0.086 38.5
2007 0.089 24.0
2008 0.090 10.1
2009 0.089 356.2
2010 0.086 341.5
2011 0.081 325.5
2012 0.077 307.6
2013 0.073 287.7
2014 0.072 266.4
2015 0.073 245.1
2016 0.076 225.0
2017 0.079 206.4
2018 0.081 189.1
2019 0.081 172.2
2020 0.080 155.1
2021 0.078 137.3
2022 0.077 118.6
2023 0.076 99.5
2024 0.078 80.8
2025 0.081 63.2
2026 0.085 47.0
2027 0.088 32.0
2028 0.089 17.9
2029 0.089 4.0
2030 0.087 349.8

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

grafico orbita





wds19407-0037c.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

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