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Doubles in session


Current system
16568-2309
BU 1117
24 Oph


Nearby doubles
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B 327

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B 323

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BU 241

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LDS6316

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OCC9163

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ARA2194



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

16568-2309 BU 1117 (24 Oph)

 
 
16h 56m 48.01s -23° 09' 01.0" P.A. 304.00 sep 1.0 mag 6.25,6.32 Sp A0V dist. 93.11 pc (303.72 l.y.)
 
 
Coord 2000 16568-2309 Discov num BU 1117 Comp Coord arcsec 2000 16 56 48.01 -23 09 01.0
Date first 1887 Date last 2015 Obs 58
Pa first 251 Pa last 303.7 P.A. Now (θ) 303.7°
Sep first 0.4 Sep last 1.019 Sep. Now (ρ) 1.019"
Mag pri 6.25 Mag sec 6.32 delta mag (ΔM) 0.07 Spectral class A0V (white)
Pri motion ra -011 Sec motion ra -011
Pri motion dec -003 Sec motion dec -003
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 24 Oph Constellation Ophiuchus SAO 184822 HIP 82925
Tycho2 6810-00610-1 Gaia DR2 4125503249615712640 HD 152849 HR 6291
GC 22824 ADS 10265 BD BD-22 4249 CD CD-2211734
CP CP-22 6278 Flamsteed 24 Ophiuchi Flamsteed name 24 Oph Distance 93.11
Distance ly 303.72
 
 
ORBITAL ELEMENTS
 
 
Period (P)1096.5033y± 538.5025 Periastron (T)2080.2734y± 86.0438 Semi-major axis (a)2.72274a± 1.53554
Eccentricity (e)0.81785± 0.16291 Inclination (i)82.822°± 9.182 Longitude of periastron (ω)251.543°± 24.717
Node (Ω)133.751°± 6.147 Notesn ReferenceIzm2019
Equinox Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 301.4 1.007
2001 301.6 1.009
2002 301.8 1.010
2003 301.9 1.012
2004 302.1 1.014
2005 302.3 1.015
2006 302.5 1.017
2007 302.6 1.018
2008 302.8 1.019
2009 303.0 1.020
2010 303.1 1.021
2011 303.3 1.022
2012 303.5 1.023
2013 303.6 1.024
2014 303.8 1.024
2015 304.0 1.025
2016 304.1 1.025
2017 304.3 1.026
2018 304.5 1.026
2019 304.6 1.026
2020 304.8 1.025
2021 305.0 1.025
2022 305.1 1.025
2023 305.3 1.024
2024 305.5 1.023
2025 305.6 1.022
2026 305.8 1.021
2027 306.0 1.020
2028 306.1 1.018
2029 306.3 1.016
2030 306.5 1.014
2031 306.6 1.012
2032 306.8 1.010
2033 307.0 1.007
2034 307.2 1.004
2035 307.3 1.001
2036 307.5 0.998
2037 307.7 0.994
2038 307.9 0.990
2039 308.0 0.986
2040 308.2 0.981
2041 308.4 0.976
2042 308.6 0.971
2043 308.8 0.966
2044 309.0 0.960
2045 309.2 0.953
2046 309.4 0.946
2047 309.5 0.939
2048 309.7 0.931
2049 310.0 0.923
2050 310.2 0.914


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds16568-2309a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic