00095+1907 COU 247

00h 09m 28.15s +19 06' 56.8" P.A. 220.1 sep 0.39 mag 8.29,9.98 Sp G3V dist. 68.12 pc (222.21 l.y.)

Coord 2000
00095+1907
Discov num
COU 247
Comp
Coord arcsec 2000
00 09 28.15 +19 06 56.8
Date first
1967
Date last
2010
Obs
31
Pa first
31
Pa last
250
P.A. Now (θ)
220.1°
Sep first
0.4
Sep last
0.3
Sep. Now (ρ)
0.39"
Mag pri
8.29
Mag sec
9.98
delta mag (ΔM)
1.69
Spectral class
G3V (yellow)
Pri motion ra
+267
Sec motion ra
Pri motion dec
+024
Sec motion dec
Notes
O (Orbital solution)


This double is physical.



OTHER CATALOGS AND DESIGNATIONS

Precise pa
249.9
Precise sep
0.3
Constellation
Pegasus
SAO
91742
HIP
768
Tycho2
1181-00051-1
HD
489
BD
BD+18 3
Distance
68.12
Distance ly
222.21
last precise pa
249.9
last precise sep
0.3




ORBITAL ELEMENTS

Period (P)159.51y Periastron (T)2005.8y Semi-major axis (a)0.543a
Eccentricity (e)0.309 Inclination (i)137° Longitude of periastron (ω)103.4°
Node (Ω)21.1° Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2010

label rho theta
2000 0.286 307.7
2001 0.281 301.9
2002 0.278 296.0
2003 0.276 289.9
2004 0.276 283.8
2005 0.278 277.8
2006 0.282 271.9
2007 0.287 266.2
2008 0.293 260.6
2009 0.301 255.4
2010 0.310 250.5
2011 0.320 245.8
2012 0.330 241.4
2013 0.341 237.3
2014 0.351 233.4
2015 0.362 229.8
2016 0.373 226.4
2017 0.384 223.1
2018 0.394 220.1
2019 0.404 217.2
2020 0.414 214.4
2021 0.423 211.7
2022 0.432 209.2
2023 0.440 206.8
2024 0.448 204.4
2025 0.455 202.2
2026 0.462 200.0
2027 0.468 197.8
2028 0.474 195.7
2029 0.479 193.7
2030 0.484 191.7

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

grafico orbita





wds00095%2B1907b.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
00095+1907 COU 247 2003 27 287 0.3 8.29 9.98 G3V OD 000927.98+190656.5
00095+1907 COU 247 2008 28 256 0.3 8.29 9.98 G3V OD 000927.98+190656.5
00095+1907 COU 247 2010 30 250 0.3 8.29 9.98 G3V OD 000927.98+190656.5

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