22535-1137 MCA 73 (74 Aqr)

 
 
22h 53m 28.69s -11° 36' 59.5" P.A. 283.00 sep 0.1 mag 5.80,6.40 Sp B9III dist. 253.16 pc (825.81 l.y.)
 
 
Coord 2000 22535-1137 Discov num MCA  73 Comp Coord arcsec 2000 22 53 28.69 -11 36 59.5
Date first 1976 Date last 2023 Obs 56
Pa first 291 Pa last 283.3 P.A. Now (θ) 293.6°
Sep first 0.1 Sep last 0.076 Sep. Now (ρ) 0.074"
Mag pri 5.80 Mag sec 6.40 delta mag (ΔM) 0.6 Spectral class B9III (blue-white)
Pri motion ra +022 Sec motion ra
Pri motion dec +000 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 74 Aqr Var name HI Aqr Constellation Aquarius SAO 165359
HIP 113031 Tycho2 5816-00131-1 Gaia DR2 2604809296072674944 HD 216494
HR 8704 GC 31918 BD BD-12 6371 Flamsteed 74 Aquarii
Flamsteed name 74 Aqr Distance 253.16 Distance ly 825.81
 
 
ORBITAL ELEMENTS
 
 
Period (P)9.479y± 0.044 Periastron (T)2010.039y± 0.134 Semi-major axis (a)0.046a± 0.0061
Eccentricity (e)0.862± 0.029 Inclination (i)29.8°± 17.4 Longitude of periastron (ω)70.7°± 16.1
Node (Ω)40.9°± 20.3 Notesn ReferenceTok2017b
Equinox2000 Last observation Grade2(1=Definitive, 9=Indet.)
label theta rho
2000 339.9 0.027
2001 237.9 0.025
2002 263.0 0.051
2003 273.4 0.065
2004 280.7 0.073
2005 287.1 0.076
2006 293.3 0.074
2007 300.2 0.068
2008 309.2 0.057
2009 324.4 0.039
2010 71.1 0.007
2011 255.1 0.041
2012 269.0 0.059
2013 277.4 0.070
2014 284.1 0.075
2015 290.3 0.075
2016 296.8 0.072
2017 304.5 0.063
2018 315.7 0.049
2019 342.1 0.026
2020 240.1 0.027
2021 263.6 0.052
2022 273.7 0.066
2023 281.0 0.073
2024 287.3 0.076
2025 293.6 0.074
2026 300.6 0.068
2027 309.6 0.057
2028 325.4 0.039
2029 112.3 0.006
2030 255.9 0.042
2031 269.5 0.060
2032 277.7 0.070
2033 284.4 0.075
2034 290.6 0.075
2035 297.1 0.071
2036 304.9 0.063
2037 316.3 0.048
2038 344.4 0.024
2039 242.0 0.028
2040 264.1 0.053
2041 274.1 0.066
2042 281.3 0.073
2043 287.6 0.076
2044 293.9 0.074
2045 300.9 0.067
2046 310.1 0.056
2047 326.4 0.038
2048 156.4 0.006
2049 256.7 0.043
2050 269.9 0.061


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds22535-1137e.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic