19021+5216 HU  757BC

 
 
19h 02m 06.53s +52 15' 42.3" P.A. 98.2 sep 0.22 mag 10.30,10.40 Sp G8III: dist. 214.13 pc (698.49 l.y.)
 
 
Coord 2000
19021+5216
Discov num
HU  757
Comp
BC
Coord arcsec 2000
19 02 06.53 +52 15 42.3
Date first
1904
Date last
2010
Obs
15
Pa first
93
Pa last
168
P.A. Now (θ)
98.2°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.22"
Mag pri
10.30
Mag sec
10.40
delta mag (ΔM)
0.1
Spectral class
G8III: (yellow)
Pri motion ra
-008
Sec motion ra
-008
Pri motion dec
-033
Sec motion dec
-033
Notes
O (Orbital solution)
This double is physical.
 
 
19021+5216 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 31337 19021+5216 STF2450 A,BC 1833 2005 26 299 5.2 6.50 9.51 3.01
Show 31337 19021+5216 HU 757 BC 1904 2010 15 98 0.2 10.30 10.40 0.10 Y <===
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
167.9
Precise sep
0.18
Constellation
Draco
SAO
31337
HIP
93466
Tycho2
3553-01598-1
HD
177483
HR
7229
ADS
11979
BD
BD+52 2326
Distance
214.13
Distance ly
698.49
last precise pa
167.9
last precise sep
0.18
 
 
ORBITAL ELEMENTS
 
 
Period (P)115.9y Periastron (T)1991.06y Semi-major axis (a)0.234a
Eccentricity (e)0.284 Inclination (i)115° Longitude of periastron (ω)217.4°
Node (Ω)84.6° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation1998
label rho theta
2000 0.077 182.7
2001 0.078 171.2
2002 0.081 160.3
2003 0.087 150.5
2004 0.094 142.0
2005 0.103 134.8
2006 0.112 128.8
2007 0.122 123.8
2008 0.132 119.5
2009 0.142 115.8
2010 0.152 112.6
2011 0.162 109.8
2012 0.172 107.4
2013 0.182 105.2
2014 0.191 103.2
2015 0.200 101.4
2016 0.208 99.7
2017 0.216 98.2
2018 0.223 96.8
2019 0.231 95.4
2020 0.237 94.2
2021 0.243 93.0
2022 0.249 91.8
2023 0.254 90.7
2024 0.259 89.7
2025 0.264 88.7
2026 0.268 87.7
2027 0.271 86.8
2028 0.274 85.8
2029 0.277 84.9
2030 0.279 84.0

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

grafico orbita





wds19021%2B5216a.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
19021+5216 HU 757 BC 1998 14 18 0.1 10.30 10.40 NO 190206.53+521542.3
19021+5216 HU 757 BC 2010 15 168 0.2 10.30 10.40 G8III: O 190206.53+521542.3

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