20020+2456 STT 395 (16 Vul)

 
 
20h 02m 01.45s +24 56' 16.8" P.A. 126.9 sep 0.85 mag 5.83,6.19 Sp F2III dist. 67.98 pc (221.75 l.y.)
 
 
Coord 2000
20020+2456
Discov num
STT 395
Comp
Coord arcsec 2000
20 02 01.45 +24 56 16.8
Date first
1843
Date last
2016
Obs
318
Pa first
89
Pa last
127
P.A. Now (θ)
126.9°
Sep first
0.5
Sep last
0.8
Sep. Now (ρ)
0.85"
Mag pri
5.83
Mag sec
6.19
delta mag (ΔM)
0.36
Spectral class
F2III (yellow-white)
Pri motion ra
+090
Sec motion ra
+090
Pri motion dec
+067
Sec motion dec
+067
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
127
Precise sep
0.78
Name
16 Vul
Constellation
Vulpecula
SAO
88098
HIP
98636
Tycho2
2145-01661-1
HD
190004
HR
7657
GC
27768
ADS
13277
BD
BD+24 3977
Flamsteed
16 Vulpeculae
Flamsteed name
16 Vul
Distance
67.98
Distance ly
221.75
last precise pa
126.6
last precise sep
0.772
 
 
ORBITAL ELEMENTS
 
 
Period (P)1201y Periastron (T)1863.7y Semi-major axis (a)2.687a
Eccentricity (e)0.932 Inclination (i)79° Longitude of periastron (ω)276.5°
Node (Ω)84.5° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.848 123.4
2001 0.848 123.6
2002 0.848 123.8
2003 0.848 124.0
2004 0.848 124.2
2005 0.848 124.4
2006 0.848 124.6
2007 0.849 124.9
2008 0.849 125.1
2009 0.849 125.3
2010 0.849 125.5
2011 0.849 125.7
2012 0.849 125.9
2013 0.849 126.1
2014 0.849 126.3
2015 0.849 126.5
2016 0.849 126.7
2017 0.849 126.9
2018 0.849 127.1
2019 0.849 127.3
2020 0.849 127.6
2021 0.849 127.8
2022 0.849 128.0
2023 0.849 128.2
2024 0.849 128.4
2025 0.849 128.6
2026 0.849 128.8
2027 0.849 129.0
2028 0.849 129.2
2029 0.849 129.4
2030 0.849 129.6

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

grafico orbita





wds20020%2B2456a.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
20020+2456 STT 395 2006 341 125 0.9 5.83 6.19 F2III N D 200201.45+245616.8
20020+2456 STT 395 2009 342 125 0.8 5.83 6.19 F2III N D 200201.45+245616.8
20020+2456 STT 395 2012 353 126 0.7 5.83 6.19 F2III N D 200201.45+245616.8
20020+2456 STT 395 2013 355 126 0.8 5.83 6.19 F2III NOD 200201.45+245616.8
20020+2456 STT 395 2015 317 127 0.7 5.83 6.19 F2III NO 200201.45+245616.8
20020+2456 STT 395 2016 318 127 0.8 5.83 6.19 F2III NO 200201.45+245616.8

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