19043-2132 H N 126

 
 
19H 04M 20.28S -21 31' 53.7" P.A. 183.3 SEP 1.25 MAG 7.87,8.06 SP F8V DIST. 56.37 PC (183.88 L.Y.)
 
 
Coord 2000
19043-2132
Discov num
H N 126
Comp
Coord arcsec 2000
19 04 20.28 -21 31 53.7
Date first
1873
Date last
2016
Obs
112
Pa first
40
Pa last
186
P.A. Now (θ)
183.3°
Sep first
1.0
Sep last
1.4
Sep. Now (ρ)
1.25"
Mag pri
7.87
Mag sec
8.06
delta mag (ΔM)
0.19
Spectral class
F8V (yellow-white)
Pri motion ra
+069
Sec motion ra
+069
Pri motion dec
-041
Sec motion dec
-041
Notes
O (Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Sagittarius
HIP
93661
HD
177166
ADS
11989
Distance
56.37
Distance ly
183.88
last precise pa
185.6
last precise sep
1.41
 
 
ORBITAL ELEMENTS
 
 
Period (P)500y Periastron (T)1902y Semi-major axis (a)1.61a
Eccentricity (e)0.545 Inclination (i)126.5° Longitude of periastron (ω)112°
Node (Ω)64.7° Note Grade4(1=Definitive, 9=Indet.)
Equinox Last observation
label rho theta
2000 1.232 194.1
2001 1.233 193.5
2002 1.234 192.9
2003 1.235 192.3
2004 1.236 191.7
2005 1.237 191.1
2006 1.238 190.5
2007 1.239 189.9
2008 1.240 189.2
2009 1.242 188.6
2010 1.243 188.0
2011 1.244 187.4
2012 1.245 186.8
2013 1.246 186.2
2014 1.248 185.6
2015 1.249 185.0
2016 1.250 184.4
2017 1.251 183.8
2018 1.253 183.3
2019 1.254 182.7
2020 1.255 182.1
2021 1.257 181.5
2022 1.258 180.9
2023 1.260 180.3
2024 1.261 179.7
2025 1.262 179.1
2026 1.264 178.6
2027 1.265 178.0
2028 1.267 177.4
2029 1.269 176.8
2030 1.270 176.2

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

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic