19296-1239 HU   75

 
 
19h 29m 37.86s -12 38' 48.1" P.A. 166.8 sep 0.3 mag 7.09,9.15 Sp F5IV-V dist. 65.06 pc (212.23 l.y.)
 
 
Coord 2000
19296-1239
Discov num
HU   75
Comp
Coord arcsec 2000
19 29 37.86 -12 38 48.1
Date first
1899
Date last
2017
Obs
54
Pa first
202
Pa last
164
P.A. Now (θ)
166.8°
Sep first
0.5
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
7.09
Mag sec
9.15
delta mag (ΔM)
2.06
Spectral class
F5IV-V (yellow-white)
Pri motion ra
+104
Sec motion ra
+104
Pri motion dec
-036
Sec motion dec
-036
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
163.6
Precise sep
0.286
Constellation
Sagittarius
HIP
95847
Tycho2
5730-01534-1
HD
183347
ADS
12505
Distance
65.06
Distance ly
212.23
last precise pa
163.6
last precise sep
0.286
 
 
ORBITAL ELEMENTS
 
 
Period (P)129.67y± 2.7 Periastron (T)2009.47y± 0.29 Semi-major axis (a)0.496a± 0.013
Eccentricity (e)0.652± 0.012 Inclination (i)31.5°± 3.4 Longitude of periastron (ω)245.3°± 4.7
Node (Ω)183.1°± 5.9 Note Grade3(1=Definitive, 9=Indet.)
Equinox2000 Last observation2014
label rho theta
2000 0.309 331.9
2001 0.293 336.8
2002 0.277 342.2
2003 0.260 348.3
2004 0.242 355.4
2005 0.223 3.6
2006 0.204 13.2
2007 0.186 24.9
2008 0.169 39.1
2009 0.156 56.0
2010 0.150 75.1
2011 0.153 94.5
2012 0.165 112.1
2013 0.184 126.6
2014 0.206 138.3
2015 0.230 147.7
2016 0.254 155.3
2017 0.278 161.5
2018 0.301 166.8
2019 0.323 171.4
2020 0.345 175.3
2021 0.365 178.8
2022 0.385 182.0
2023 0.403 184.8
2024 0.421 187.4
2025 0.438 189.8
2026 0.454 192.0
2027 0.470 194.1
2028 0.485 196.0
2029 0.499 197.9
2030 0.512 199.6

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

grafico orbita





wds19296-1239b.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
19296-1239 HU 75 1998 62 334 0.3 7.09 9.15 F5IV-V NOD 192937.86-123848.1
19296-1239 HU 75 2009 63 61 0.2 7.09 9.15 F5IV-V NOD 192937.86-123848.1
19296-1239 HU 75 2014 53 140 0.2 7.09 9.15 F5IV-V NO 192937.86-123848.1
19296-1239 HU 75 2017 54 164 0.3 7.09 9.15 F5IV-V NO 192937.86-123848.1

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