19027-0043 STF2434BC

 
 
19h 02m 46.15s -00 42' 41.9" P.A. 263.8 sep 0.75 mag 9.68,9.38 Sp G5 dist. 66.89 pc (218.2 l.y.)
 
 
Coord 2000
19027-0043
Discov num
STF2434
Comp
BC
Coord arcsec 2000
19 02 46.15 -00 42 41.9
Date first
1831
Date last
2015
Obs
95
Pa first
81
Pa last
266
P.A. Now (θ)
263.8°
Sep first
1.9
Sep last
0.7
Sep. Now (ρ)
0.75"
Mag pri
9.68
Mag sec
9.38
delta mag (ΔM)
0.3
Spectral class
G5 (yellow)
Pri motion ra
+037
Sec motion ra
+037
Pri motion dec
-009
Sec motion dec
-009
Notes
O W (Orbital solution, )
This double is physical.
 
 
19027-0043 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19027-0043 STF2434 A,BC 1783 2017 123 89 27.6 8.44 8.93 0.49
Show 19027-0043 STF2434 BC 1831 2015 95 264 0.8 9.68 9.38 0.30 Y <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
266.2
Precise sep
0.732
Cdsa2 id
STF 2434 BC
Constellation
Aquila
HIP
93519
Tycho2
5128-00267-1
HD
176983
ADS
11971
Ra deg
19.04615277777778
De deg
-0.7116388888888888
Distance
66.89
Distance ly
218.2
last precise pa
266.2
last precise sep
0.732
 
 
ORBITAL ELEMENTS
 
 
Period (P)975y± 216 Periastron (T)1993.5y± 2.4 Semi-major axis (a)1.82a± 0.23
Eccentricity (e)0.612± 0.053 Inclination (i)149°± 2.6 Longitude of periastron (ω)97°± 12
Node (Ω)49°± 8 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.623 296.5
2001 0.627 294.4
2002 0.632 292.3
2003 0.637 290.2
2004 0.642 288.2
2005 0.648 286.2
2006 0.654 284.3
2007 0.661 282.3
2008 0.667 280.5
2009 0.674 278.6
2010 0.682 276.8
2011 0.689 275.1
2012 0.697 273.3
2013 0.705 271.6
2014 0.713 270.0
2015 0.722 268.4
2016 0.730 266.8
2017 0.739 265.3
2018 0.748 263.8
2019 0.757 262.3
2020 0.766 260.9
2021 0.775 259.5
2022 0.784 258.1
2023 0.793 256.8
2024 0.803 255.5
2025 0.812 254.2
2026 0.822 253.0
2027 0.831 251.8
2028 0.841 250.6
2029 0.850 249.4
2030 0.860 248.3

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

grafico orbita





wds19027-0043e.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
19027-0043 STF2434 BC 2001 90 287 0.5 9.68 9.38 NO 190246.15-004241.9
19027-0043 STF2434 BC 2008 92 279 0.7 9.68 9.38 NO 190246.15-004241.9
19027-0043 STF2434 BC 2015 95 266 0.7 9.68 9.38 G5 O 190246.15-004241.9

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