15210+2104 HU  146

 
 
15h 20m 59.63s +21 04' 06.3" P.A. 123.4 sep 0.72 mag 9.53,9.70 Sp G0 dist. 194.55 pc (634.62 l.y.)
 
 
Coord 2000
15210+2104
Discov num
HU  146
Comp
Coord arcsec 2000
15 20 59.63 +21 04 06.3
Date first
1900
Date last
2016
Obs
58
Pa first
172
Pa last
123
P.A. Now (θ)
123.4°
Sep first
0.3
Sep last
0.7
Sep. Now (ρ)
0.72"
Mag pri
9.53
Mag sec
9.70
delta mag (ΔM)
0.17
Spectral class
G0 (yellow)
Pri motion ra
-041
Sec motion ra
-041
Pri motion dec
+094
Sec motion dec
+094
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
122.7
Precise sep
0.72
Constellation
Serpens
SAO
83776
HIP
75117
Tycho2
1493-00448-1
HD
136596
ADS
9600
BD
BD+21 2759
Distance
194.55
Distance ly
634.62
last precise pa
122.7
last precise sep
0.72
 
 
ORBITAL ELEMENTS
 
 
Period (P)627y Periastron (T)2174.7y Semi-major axis (a)0.839a
Eccentricity (e)0.3 Inclination (i)102.8° Longitude of periastron (ω)84.1°
Node (Ω)113.3° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010
label rho theta
2000 0.671 126.4
2001 0.674 126.2
2002 0.678 126.0
2003 0.681 125.9
2004 0.684 125.7
2005 0.687 125.5
2006 0.690 125.3
2007 0.693 125.1
2008 0.696 125.0
2009 0.699 124.8
2010 0.702 124.6
2011 0.705 124.4
2012 0.708 124.3
2013 0.711 124.1
2014 0.714 123.9
2015 0.716 123.8
2016 0.719 123.6
2017 0.722 123.4
2018 0.724 123.3
2019 0.727 123.1
2020 0.729 122.9
2021 0.731 122.8
2022 0.734 122.6
2023 0.736 122.5
2024 0.738 122.3
2025 0.741 122.2
2026 0.743 122.0
2027 0.745 121.8
2028 0.747 121.7
2029 0.749 121.5
2030 0.751 121.4

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

grafico orbita





wds15210%2B2104a.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
15210+2104 HU 146 2005 50 121 0.7 9.53 9.70 G0 D 152059.63+210406.3
15210+2104 HU 146 2008 52 125 0.7 9.53 9.70 G0 D 152059.63+210406.3
15210+2104 HU 146 2010 55 122 0.7 9.53 9.70 G0 D 152059.63+210406.3
15210+2104 HU 146 2016 58 123 0.7 9.53 9.70 G0 O 152059.63+210406.3

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