00152+2722 J   868

 
 
00h 15m 09.94s +27 23' 46.7" P.A. 230.30 sep 6.3 mag 12.42,12.62 Sp F4V+G5V
 
 
Coord 2000
00152+2722
Discov num
J   868
Comp
Coord arcsec 2000
00 15 09.94 +27 23 46.7
Date first
1907
Date last
2018
Obs
36
Pa first
187
Pa last
232
P.A. Now (θ)
230.3°
Sep first
2.1
Sep last
6.3
Sep. Now (ρ)
6.3"
Mag pri
12.42
Mag sec
12.62
delta mag (ΔM)
0.2
Spectral class
F4V+G5V (yellow-white/yellow)
Pri motion ra
+018
Sec motion ra
-033
Pri motion dec
+011
Sec motion dec
-014
Notes
N L B (See Notes, Linear solution, Blue magnitudes)
rPM=1.584
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
231.6
Precise sep
6.31
Constellation
Hydra
Gaia DR2
2856755719788741120
ADS
195
last precise pa
231.6
last precise sep
6.31
 
 
ORBITAL ELEMENTS
 
 
Period (P)1089.17y Periastron (T)1725.11y Semi-major axis (a)8.477a
Eccentricity (e)0.367 Inclination (i)75.2° Longitude of periastron (ω)352.8°
Node (Ω)68.9° Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2006
label rho theta
2000 5.515 226.9
2001 5.553 227.1
2002 5.591 227.3
2003 5.629 227.4
2004 5.667 227.6
2005 5.704 227.8
2006 5.742 228.0
2007 5.780 228.1
2008 5.817 228.3
2009 5.855 228.5
2010 5.892 228.6
2011 5.929 228.8
2012 5.967 229.0
2013 6.004 229.1
2014 6.041 229.3
2015 6.078 229.4
2016 6.114 229.6
2017 6.151 229.7
2018 6.188 229.9
2019 6.225 230.0
2020 6.261 230.2
2021 6.297 230.3
2022 6.334 230.4
2023 6.370 230.6
2024 6.406 230.7
2025 6.442 230.9
2026 6.478 231.0
2027 6.514 231.1
2028 6.550 231.3
2029 6.585 231.4
2030 6.621 231.5


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



 
 


wds00152%2B2722a.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
00152+2722 J 868 2006 19 230 5.8 12.42 12.62 ODB 001509.80+272345.1
00152+2722 J 868 2011 23 230 6.0 12.42 12.62 ODB 001509.80+272345.1
00152+2722 J 868 2013 25 231 6.0 12.42 12.62 F4V+G5V NOUB 001509.80+272345.1
00152+2722 J 868 2015 29 231 6.2 12.42 12.62 F4V+G5V NOUB 001509.94+272346.7
00152+2722 J 868 2016 30 231 6.2 12.42 12.62 F4V+G5V NO B 001509.94+272346.7
00152+2722 J 868 2018 36 232 6.3 12.42 12.62 F4V+G5V NL B 001509.94+272346.7

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