16128+3922 STF2028

 
 
16h 12m 48.11s +39 21' 35.6" P.A. 146.4 sep 0.49 mag 9.88,9.14 Sp G0 dist. 67.2 pc (219.21 l.y.)
 
 
Coord 2000
16128+3922
Discov num
STF2028
Comp
Coord arcsec 2000
16 12 48.11 +39 21 35.6
Date first
1906
Date last
2010
Obs
57
Pa first
147
Pa last
144
P.A. Now (θ)
146.4°
Sep first
0.5
Sep last
0.4
Sep. Now (ρ)
0.49"
Mag pri
9.88
Mag sec
9.14
delta mag (ΔM)
0.74
Spectral class
G0 (yellow)
Pri motion ra
-256
Sec motion ra
Pri motion dec
+279
Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
143.9
Precise sep
0.41
Constellation
Corona Borealis
SAO
65149
HIP
79448
Tycho2
3061-01469-1
HD
146100
ADS
9970
BD
BD+39 2963
Distance
67.2
Distance ly
219.21
last precise pa
143.9
last precise sep
0.41
 
 
ORBITAL ELEMENTS
 
 
Period (P)105.34y Periastron (T)1993.38y Semi-major axis (a)0.399a
Eccentricity (e)0.616 Inclination (i)83.6° Longitude of periastron (ω)223.7°
Node (Ω)145.5° Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2009
label rho theta
2000 0.156 138.0
2001 0.191 139.6
2002 0.223 140.8
2003 0.252 141.6
2004 0.279 142.3
2005 0.305 142.9
2006 0.328 143.3
2007 0.350 143.7
2008 0.370 144.1
2009 0.388 144.5
2010 0.405 144.8
2011 0.421 145.0
2012 0.435 145.3
2013 0.449 145.5
2014 0.461 145.8
2015 0.472 146.0
2016 0.482 146.2
2017 0.491 146.4
2018 0.499 146.6
2019 0.506 146.8
2020 0.513 147.0
2021 0.519 147.1
2022 0.524 147.3
2023 0.528 147.5
2024 0.531 147.7
2025 0.534 147.8
2026 0.537 148.0
2027 0.538 148.2
2028 0.539 148.3
2029 0.539 148.5
2030 0.539 148.7

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

grafico orbita





wds16128%2B3922a.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
16128+3922 STF2028 2007 52 152 0.3 9.88 9.14 G0 NOD 161248.31+392133.2
16128+3922 STF2028 2009 55 145 0.4 9.88 9.14 G0 NOD 161248.31+392133.2
16128+3922 STF2028 2010 57 144 0.4 9.88 9.14 G0 NO 161248.31+392133.2

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