10361-2641 BU  411

 
 
10h 36m 04.49s -26 40' 31.6" P.A. 302.70 sep 1.3 mag 6.68,7.77 Sp F6V dist. 41.25 pc (134.56 l.y.)
 
 
Coord 2000
10361-2641
Discov num
BU  411
Comp
Coord arcsec 2000
10 36 04.49 -26 40 31.6
Date first
1876
Date last
2020
Obs
112
Pa first
310
Pa last
303
P.A. Now (θ)
302.7°
Sep first
1.3
Sep last
1.3
Sep. Now (ρ)
1.33"
Mag pri
6.68
Mag sec
7.77
delta mag (ΔM)
1.09
Spectral class
F6V (yellow-white)
Pri motion ra
-008
Sec motion ra
-008
Pri motion dec
-086
Sec motion dec
-086
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
302.9
Precise sep
1.329
Constellation
Hydra
SAO
179014
HIP
51885
Tycho2
6628-01612-1
Gaia DR2
5468409368370405888
HD
91881
HR
4157
ADS
7846
CD
CD-26 8022
CP
CP-26 4360
Distance
41.25
Distance ly
134.56
last precise pa
302.9
last precise sep
1.329
 
 
ORBITAL ELEMENTS
 
 
Period (P)159.2877y± 2.2479 Periastron (T)1948.3135y± 0.1278 Semi-major axis (a)0.86653a± 0.0074
Eccentricity (e)0.75879± 0.00591 Inclination (i)128.49°± 0.789 Longitude of periastron (ω)41.725°± 1.472
Node (Ω)148.934°± 1.004 Note Grade2(1=Definitive, 9=Indet.)
Equinox Last observation2015
label rho theta
2000 1.297 310.9
2001 1.302 310.5
2002 1.307 310.1
2003 1.311 309.7
2004 1.315 309.3
2005 1.318 308.9
2006 1.321 308.5
2007 1.324 308.1
2008 1.327 307.7
2009 1.329 307.3
2010 1.330 306.9
2011 1.331 306.6
2012 1.332 306.2
2013 1.333 305.8
2014 1.333 305.4
2015 1.333 305.0
2016 1.332 304.6
2017 1.331 304.2
2018 1.330 303.8
2019 1.329 303.5
2020 1.327 303.1
2021 1.325 302.7
2022 1.322 302.3
2023 1.319 301.9
2024 1.316 301.5
2025 1.313 301.1
2026 1.309 300.7
2027 1.305 300.3
2028 1.301 299.9
2029 1.296 299.5
2030 1.291 299.1


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



 
 


wds10361-2641c.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
10361-2641 BU 411 1998 90 310 1.3 6.68 7.77 F6V NOD 103604.49-264031.6
10361-2641 BU 411 2009 91 307 1.3 6.68 7.77 F6V NOD 103604.49-264031.6
10361-2641 BU 411 2010 92 307 1.3 6.68 7.77 F6V NOD 103604.49-264031.6
10361-2641 BU 411 2012 94 306 1.3 6.68 7.77 F6V NOD 103604.49-264031.6
10361-2641 BU 411 2013 95 306 1.3 6.68 7.77 F6V NOD 103604.49-264031.6
10361-2641 BU 411 2014 96 306 1.3 6.68 7.77 F6V NO 103604.49-264031.6
10361-2641 BU 411 2015 98 305 1.3 6.68 7.77 F6V NO 103604.49-264031.6
10361-2641 BU 411 2016 100 305 1.3 6.68 7.77 F6V NO 103604.49-264031.6
10361-2641 BU 411 2017 103 304 1.3 6.68 7.77 F6V NO 103604.49-264031.6
10361-2641 BU 411 2018 105 304 1.3 6.68 7.77 F6V NO 103604.49-264031.6
10361-2641 BU 411 2019 109 303 1.3 6.68 7.77 F6V NO 103604.49-264031.6

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