02371-1112 HU 1216AB

 
 
02H 37M 08.62S -11 11' 51.1" P.A. 37 SEP 0.67 MAG 8.53,9.18 SP G0 DIST. 66.14 PC (215.75 L.Y.)
 
 
Coord 2000
02371-1112
Discov num
HU 1216
Comp
AB
Coord arcsec 2000
02 37 08.62 -11 11 51.1
Date first
1900
Date last
2013
Obs
33
Pa first
249
Pa last
36
P.A. Now (θ)
37°
Sep first
0.3
Sep last
0.6
Sep. Now (ρ)
0.67"
Mag pri
8.53
Mag sec
9.18
delta mag (ΔM)
0.65
Spectral class
G0 (yellow)
Pri motion ra
+048
Sec motion ra
+048
Pri motion dec
+026
Sec motion dec
+026
Notes
O (Orbital solution)
This double is physical.
 
 
02371-1112 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 148505 02371-1112 HU 1216 AB 1900 2013 33 37 0.7 8.53 9.18 0.65 Y <===
Show 148505 02371-1112 TOK 232 AC 1900 2014 6 234 187.3 8.11 11.84 3.73
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cetus
SAO
148505
HIP
12204
Tycho2
5288-00842-1
HD
16355
ADS
1990
BD
BD-11 493
Distance
66.14
Distance ly
215.75
last precise pa
36.2
last precise sep
0.638
 
 
ORBITAL ELEMENTS
 
 
Period (P)351y± 271 Periastron (T)1902y± 15 Semi-major axis (a)1.01a± 0.34
Eccentricity (e)0.508± 0.044 Inclination (i)64.4°± 3.4 Longitude of periastron (ω)309°± 43
Node (Ω)277°± 12 Note Grade5(1=Definitive, 9=Indet.)
Equinox2000 Last observation2013
label rho theta
2000 0.573 19.7
2001 0.578 20.8
2002 0.583 22.0
2003 0.588 23.1
2004 0.593 24.2
2005 0.599 25.3
2006 0.604 26.4
2007 0.610 27.5
2008 0.616 28.5
2009 0.622 29.5
2010 0.628 30.5
2011 0.634 31.5
2012 0.640 32.5
2013 0.646 33.4
2014 0.653 34.3
2015 0.659 35.2
2016 0.666 36.1
2017 0.672 37.0
2018 0.679 37.8
2019 0.686 38.7
2020 0.693 39.5
2021 0.699 40.3
2022 0.706 41.1
2023 0.713 41.9
2024 0.720 42.6
2025 0.727 43.4
2026 0.734 44.1
2027 0.742 44.8
2028 0.749 45.5
2029 0.756 46.2
2030 0.763 46.9

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