19316+1747 STF2536

 
 
19h 31m 37.80s +17 46' 58.6" P.A. 126.1 sep 1.7 mag 8.40,11.38 Sp G2V dist. 50.1 pc (163.43 l.y.)
 
 
Coord 2000
19316+1747
Discov num
STF2536
Comp
Coord arcsec 2000
19 31 37.80 +17 46 58.6
Date first
1829
Date last
2015
Obs
75
Pa first
35
Pa last
119
P.A. Now (θ)
126.1°
Sep first
1.8
Sep last
1.8
Sep. Now (ρ)
1.7"
Mag pri
8.40
Mag sec
11.38
delta mag (ΔM)
2.98
Spectral class
G2V (yellow)
Pri motion ra
-007
Sec motion ra
+005
Pri motion dec
-120
Sec motion dec
-116
Notes
N O (See Notes, Orbital solution)
rPM=0.105 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
118.7
Precise sep
1.811
Constellation
Sagitta
HIP
96037
Tycho2
1605-01006-1
HD
231683
ADS
12557
Distance
50.1
Distance ly
163.43
last precise pa
118.7
last precise sep
1.811
 
 
ORBITAL ELEMENTS
 
 
Period (P)672.5y Periastron (T)2079.33y Semi-major axis (a)1.975a
Eccentricity (e)0.089 Inclination (i)38.6° Longitude of periastron (ω)75.3°
Node (Ω)96.2° Note Grade5(1=Definitive, 9=Indet.)
Equinox Last observation1997
label rho theta
2000 1.786 116.5
2001 1.782 117.0
2002 1.777 117.5
2003 1.773 118.1
2004 1.768 118.6
2005 1.764 119.1
2006 1.759 119.6
2007 1.755 120.2
2008 1.750 120.7
2009 1.746 121.2
2010 1.741 121.7
2011 1.736 122.3
2012 1.731 122.8
2013 1.727 123.4
2014 1.722 123.9
2015 1.717 124.5
2016 1.712 125.0
2017 1.707 125.6
2018 1.702 126.1
2019 1.697 126.7
2020 1.692 127.3
2021 1.687 127.8
2022 1.682 128.4
2023 1.677 129.0
2024 1.672 129.6
2025 1.667 130.1
2026 1.662 130.7
2027 1.657 131.3
2028 1.652 131.9
2029 1.647 132.5
2030 1.642 133.1

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

grafico orbita





wds19316%2B1747a.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
19316+1747 STF2536 1997 70 118 1.8 8.40 11.38 G2V NO 193137.80+174658.6
19316+1747 STF2536 2008 72 116 1.8 8.40 11.38 G2V NO 193137.80+174658.6
19316+1747 STF2536 2012 73 118 1.8 8.40 11.38 G2V NO 193137.80+174658.6
19316+1747 STF2536 2015 74 119 1.8 8.40 11.38 G2V NO 193137.80+174658.6

If you need more information about this double, apply for a data request form to the WDS.