15273+1738 A 2074 AB (HD 137792)

 
 
15h 27m 20.82s +17° 38' 06.3" P.A. 276.00 sep 0.3 mag 8.55,9.37 Sp F8 dist. 90.74 pc (295.99 l.y.)
 
 
Coord 2000 15273+1738 Discov num A  2074 Comp AB Coord arcsec 2000 15 27 20.82 +17 38 06.3
Date first 1909 Date last 2021 Obs 71
Pa first 275 Pa last 276.1 P.A. Now (θ) 276°
Sep first 0.3 Sep last 0.283 Sep. Now (ρ) 0.3"
Mag pri 8.55 Mag sec 9.37 delta mag (ΔM) 0.82 Spectral class F8 (yellow-white)
Pri motion ra -088 Sec motion ra
Pri motion dec +039 Sec motion dec
Notes N O W (See Notes, Orbital solution, )
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 137792 Constellation Serpens SAO 101563 HIP 75653
Tycho2 1490-00912-1 HD 137792 ADS 9645 BD BD+18 3024
Distance 90.74 Distance ly 295.99
 
 
ORBITAL ELEMENTS
 
 
Period (P)56.72y± 0.5 Periastron (T)1981.4y± 0.3 Semi-major axis (a)0.2a± 0.002
Eccentricity (e)0.791± 0.01 Inclination (i)63°± 1 Longitude of periastron (ω)325.4°± 3
Node (Ω)101°± 2 Notesn ReferenceDoc2025a
Equinox Last observation2023 Grade3(1=Definitive, 9=Indet.)
label theta rho
2000 255.0 0.249
2001 256.1 0.258
2002 257.1 0.266
2003 258.1 0.273
2004 259.0 0.280
2005 259.8 0.287
2006 260.7 0.292
2007 261.5 0.298
2008 262.3 0.302
2009 263.0 0.306
2010 263.8 0.310
2011 264.5 0.313
2012 265.2 0.315
2013 265.9 0.316
2014 266.6 0.317
2015 267.3 0.317
2016 268.0 0.317
2017 268.7 0.316
2018 269.5 0.314
2019 270.2 0.311
2020 270.9 0.308
2021 271.7 0.304
2022 272.4 0.299
2023 273.3 0.293
2024 274.1 0.286
2025 275.0 0.278
2026 275.9 0.268
2027 276.9 0.258
2028 278.1 0.246
2029 279.3 0.233
2030 280.7 0.218
2031 282.3 0.201
2032 284.2 0.182
2033 286.6 0.160
2034 289.8 0.135
2035 294.7 0.106
2036 303.9 0.072
2037 333.2 0.034
2038 76.4 0.033
2039 115.3 0.050
2040 142.7 0.051
2041 169.1 0.053
2042 190.9 0.062
2043 206.5 0.074
2044 217.3 0.088
2045 225.0 0.103
2046 230.8 0.118
2047 235.3 0.133
2048 238.9 0.148
2049 241.8 0.162
2050 244.3 0.175


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
wds15273%2B1738b.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic