19255+0307 BNU   6Aa,Ab

 
 
19h 25m 29.90s +03 06' 53.2" P.A. 130 sep 0.1 mag 3.40, Sp F3IV dist. 15.53 pc (50.66 l.y.)
 
 
Coord 2000
19255+0307
Discov num
BNU   6
Comp
Aa,Ab
Coord arcsec 2000
19 25 29.90 +03 06 53.2
Date first
1979
Date last
1979
Obs
1
Pa first
130
Pa last
130
P.A. Now (θ)
130°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
3.40
Mag sec
delta mag (ΔM)
Spectral class
F3IV (yellow-white)
Pri motion ra
+255
Sec motion ra
Pri motion dec
+083
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
19255+0307 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 124603 19255+0307 BNU 6 Aa,Ab 1979 1979 1 130 0.1 3.40 Y <===
Show 30 Aql 124603 19255+0307 BUP 190 AB 1833 2016 10 266 137.0 3.36 12.75 9.39
Show 19255+0307 VLM 1 AC 2006 2006 1 338 34.3 3.36 13.30 9.94
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
130
Precise sep
0.132
Cdsa2 id
BNU 6 Aa,Ab
Constellation
Aquila
SAO
124603
HIP
95501
HD
182640
HR
7377
GC
26816
GL
Gl 760
Bayer
Delta Aquilae
Bayer name
Del Aql
Flamsteed
30 Aquilae
Flamsteed name
30 Aql
Ra deg
19.424972222222223
De deg
3.114777777777778
Distance
15.53
Distance ly
50.66
last precise pa
130
last precise sep
0.132
 
 
ORBITAL ELEMENTS
 
 
Period (P)1251.3d (3.43y) Periastron (T)34955.5d (1954.581y) Semi-major axis (a)55.69m± 0.79
Eccentricity (e)0.36 Inclination (i)150° Longitude of periastron (ω)191°
Node (Ω)337° Note Grade9(1=Definitive, 9=Indet.)
Equinox Last observation1991
label rho theta
2000-01-01 0.060 11.9
2001-01-01 0.074 319.5
2002-01-01 0.044 244.4
2003-01-01 0.042 56.9
2004-01-01 0.075 339.4
2005-01-01 0.060 286.6
2006-01-01 0.035 141.2
2007-01-01 0.065 1.9
2008-01-01 0.072 312.2
2009-01-01 0.040 222.5
2010-01-01 0.048 37.2
2011-01-01 0.075 332.5
2012-01-01 0.055 274.7
2013-01-01 0.035 109.4
2014-01-01 0.070 353.4
2015-01-01 0.069 304.3
2016-01-01 0.038 196.6
2017-01-01 0.055 22.3
2018-01-01 0.075 325.6
2019-01-01 0.049 260.2
2020-01-01 0.037 79.1
2021-01-01 0.073 345.7
2022-01-01 0.064 295.5
2023-01-01 0.036 167.9
2024-01-01 0.061 10.5
2025-01-01 0.074 318.6
2026-01-01 0.044 241.9
2027-01-01 0.042 54.1
2028-01-01 0.075 338.5
2029-01-01 0.059 285.3
2030-01-01 0.035 137.3

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

grafico orbita





wds19255%2B0307s.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
19255+0307 BNU 6 Aa,Ab 1979 1 130 0.1 3.40   F3IV NO 192529.75+030652.5

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