Gaia Source ID - Star A : 4573412435280434560 Simbad
Gaia Source ID - Star B : 4573412435279593088 Simbad
Observation Epoch : J 2025.466 / 2025-06-20
Angular Separation : 14.464" ± 1.7037 mas
Position Angle : 294.33 ± 0.00770 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 13.143" ± 0.1334 mas
Position Angle : 289.68 ± 0.00070 degrees
LB of Projected Separation (AU): 309.39 AU
Spatial Separation (pc) : 75.66 ± 0.19 pc
Spatial Separation (ly) : 246.76 ± 0.63 ly
Proper Motion Angular Difference : 85.24 ± 1.76 degrees
Total Proper Motion Difference : 52.25 ± 0.21 mas/yr
Tangential Velocity Difference : 32.15 ± 0.12 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 4573412435280434560 Simbad 3.07
Parallax over error : 191.430 : very good
RUWE : 3.070 : poor astrometric fit, (possible double)
Duplicated source : false : single source
G magnitude : 3.131 : G > 3 mag, photometry reliable
Excess noise : 1.914 : poor fit, model deviation significant
Significance : 8445.734 : possible double star, motion, mismatch
BP-RP excess factor : 1.075 : photometry consistent
Visibility periods : 25 : high, indicates well observed star
IPD multi-peak frac : 1% : mulitple peaks detected (possible double)
IDP GoF harmonic amp: 0.052 : slight indication of structure
Gaia Source ID : 4573412435279593088 Simbad
Parallax over error : 671.452 : very good
RUWE : 0.880 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 8.618 : G > 3 mag, photometry reliable
Excess noise : 0.076 : poor fit, model deviation significant
Significance : 6.858 : possible double star, motion, mismatch
BP-RP excess factor : 1.204 : photometry consistent
Visibility periods : 26 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.031 : unobtrusive (single star source)
Spatial separation :
75.66 pc, with an uncertainty range of [ 75.47, 75.85] pc
Probability for a physical pair:
Close to or zero (Nominal) / Close to or zero (at lower bound of uncertainty)
Separation-Based Evidence factor:
0.026 (Nominal) / Flag: normal
Relative Proper Motion Angular difference:
47.36 %
Relative Total Proper Motion difference:
49.34 %
Relative Tangential Velocity difference:
182.17 %
Estimated CPM Probability:
3.41 %
CPM-Based Evidence factor:
0.001
Combined Physical Binding Evidence factor:
0.026
RUWE probability for a binary system (Star A):
High
RUWE probability for a binary system (Star B):
Zero
-- For epoch J[1900-2100], computed using Gaia proper motions --
Click to expand/collapse - Separation and Position Angle for J-Epoch:
Epoch Sep[″] e_Sep[″] PA[°] e_PA[°]
-------------------------------------------------
1900.0 14.593 0.024 190.009 0.079
1901.0 14.449 0.024 190.452 0.079
1902.0 14.305 0.024 190.904 0.079
1903.0 14.163 0.024 191.365 0.079
1904.0 14.021 0.023 191.835 0.080
1905.0 13.880 0.023 192.315 0.080
1906.0 13.741 0.023 192.805 0.080
1907.0 13.602 0.023 193.305 0.080
1908.0 13.464 0.023 193.815 0.080
1909.0 13.328 0.022 194.335 0.080
1910.0 13.192 0.022 194.866 0.081
1911.0 13.058 0.022 195.408 0.081
1912.0 12.925 0.022 195.962 0.081
1913.0 12.793 0.021 196.527 0.081
1914.0 12.662 0.021 197.103 0.081
1915.0 12.533 0.021 197.692 0.081
1916.0 12.405 0.021 198.292 0.081
1917.0 12.279 0.021 198.905 0.082
1918.0 12.154 0.020 199.531 0.082
1919.0 12.030 0.020 200.170 0.082
1920.0 11.908 0.020 200.822 0.082
1921.0 11.787 0.020 201.487 0.082
1922.0 11.669 0.019 202.166 0.082
1923.0 11.551 0.019 202.859 0.082
1924.0 11.436 0.019 203.566 0.082
1925.0 11.322 0.019 204.288 0.083
1926.0 11.210 0.018 205.023 0.083
1927.0 11.100 0.018 205.774 0.083
1928.0 10.992 0.018 206.539 0.083
1929.0 10.886 0.018 207.320 0.083
1930.0 10.782 0.017 208.116 0.083
1931.0 10.680 0.017 208.927 0.083
1932.0 10.581 0.017 209.753 0.083
1933.0 10.483 0.017 210.595 0.083
1934.0 10.388 0.017 211.453 0.083
1935.0 10.295 0.016 212.326 0.083
1936.0 10.205 0.016 213.215 0.083
1937.0 10.117 0.016 214.120 0.083
1938.0 10.032 0.016 215.040 0.083
1939.0 9.949 0.015 215.976 0.083
1940.0 9.869 0.015 216.927 0.083
1941.0 9.792 0.015 217.893 0.082
1942.0 9.718 0.015 218.875 0.082
1943.0 9.646 0.014 219.871 0.082
1944.0 9.578 0.014 220.882 0.082
1945.0 9.512 0.014 221.907 0.081
1946.0 9.450 0.014 222.946 0.081
1947.0 9.390 0.013 223.999 0.081
1948.0 9.334 0.013 225.064 0.080
1949.0 9.282 0.013 226.142 0.080
1950.0 9.232 0.013 227.232 0.079
1951.0 9.186 0.012 228.334 0.079
1952.0 9.144 0.012 229.446 0.078
1953.0 9.104 0.012 230.568 0.078
1954.0 9.069 0.012 231.699 0.077
1955.0 9.037 0.011 232.838 0.076
1956.0 9.008 0.011 233.986 0.076
1957.0 8.983 0.011 235.140 0.075
1958.0 8.962 0.011 236.300 0.074
1959.0 8.945 0.011 237.465 0.073
1960.0 8.931 0.010 238.634 0.072
1961.0 8.921 0.010 239.807 0.071
1962.0 8.914 0.010 240.981 0.070
1963.0 8.912 0.010 242.157 0.069
1964.0 8.913 0.009 243.333 0.068
1965.0 8.918 0.009 244.508 0.067
1966.0 8.927 0.009 245.681 0.066
1967.0 8.939 0.009 246.851 0.065
1968.0 8.955 0.009 248.018 0.063
1969.0 8.975 0.008 249.180 0.062
1970.0 8.999 0.008 250.336 0.061
1971.0 9.026 0.008 251.486 0.059
1972.0 9.057 0.008 252.629 0.058
1973.0 9.091 0.008 253.763 0.056
1974.0 9.129 0.007 254.889 0.055
1975.0 9.170 0.007 256.004 0.054
1976.0 9.215 0.007 257.110 0.052
1977.0 9.263 0.007 258.204 0.051
1978.0 9.315 0.007 259.286 0.049
1979.0 9.370 0.006 260.356 0.048
1980.0 9.428 0.006 261.414 0.046
1981.0 9.489 0.006 262.458 0.044
1982.0 9.553 0.006 263.488 0.043
1983.0 9.621 0.006 264.504 0.041
1984.0 9.691 0.006 265.506 0.040
1985.0 9.765 0.005 266.493 0.038
1986.0 9.841 0.005 267.465 0.037
1987.0 9.920 0.005 268.421 0.035
1988.0 10.001 0.005 269.363 0.034
1989.0 10.086 0.005 270.289 0.032
1990.0 10.173 0.004 271.199 0.031
1991.0 10.262 0.004 272.094 0.029
1992.0 10.354 0.004 272.973 0.028
1993.0 10.448 0.004 273.836 0.027
1994.0 10.545 0.004 274.684 0.025
1995.0 10.644 0.004 275.516 0.024
1996.0 10.745 0.003 276.332 0.022
1997.0 10.848 0.003 277.134 0.021
1998.0 10.953 0.003 277.920 0.020
1999.0 11.061 0.003 278.691 0.019
2000.0 11.170 0.003 279.447 0.017
2001.0 11.281 0.003 280.188 0.016
2002.0 11.394 0.002 280.914 0.015
2003.0 11.509 0.002 281.626 0.014
2004.0 11.626 0.002 282.324 0.012
2005.0 11.744 0.002 283.009 0.011
2006.0 11.864 0.002 283.679 0.010
2007.0 11.986 0.002 284.336 0.009
2008.0 12.109 0.001 284.979 0.008
2009.0 12.233 0.001 285.610 0.007
2010.0 12.359 0.001 286.227 0.006
2011.0 12.487 0.001 286.833 0.005
2012.0 12.615 0.001 287.425 0.004
2013.0 12.745 0.001 288.006 0.003
2014.0 12.877 0.000 288.575 0.002
2015.0 13.010 0.000 289.133 0.001
2016.0 13.143 0.000 289.679 0.001
2017.0 13.278 0.000 290.214 0.001
2018.0 13.415 0.000 290.739 0.002
2019.0 13.552 0.001 291.252 0.003
2020.0 13.690 0.001 291.756 0.004
2021.0 13.829 0.001 292.249 0.004
2022.0 13.970 0.001 292.732 0.005
2023.0 14.111 0.001 293.206 0.006
2024.0 14.253 0.001 293.670 0.007
2025.0 14.397 0.002 294.126 0.007
2026.0 14.541 0.002 294.572 0.008
2027.0 14.686 0.002 295.009 0.009
2028.0 14.831 0.002 295.438 0.009
2029.0 14.978 0.002 295.858 0.010
2030.0 15.125 0.003 296.271 0.011
2031.0 15.274 0.003 296.675 0.011
2032.0 15.423 0.003 297.071 0.012
2033.0 15.572 0.003 297.460 0.013
2034.0 15.722 0.003 297.842 0.013
2035.0 15.873 0.003 298.216 0.014
2036.0 16.025 0.004 298.583 0.015
2037.0 16.178 0.004 298.943 0.015
2038.0 16.330 0.004 299.297 0.016
2039.0 16.484 0.004 299.644 0.016
2040.0 16.638 0.004 299.984 0.017
2041.0 16.793 0.005 300.318 0.017
2042.0 16.948 0.005 300.647 0.018
2043.0 17.104 0.005 300.969 0.018
2044.0 17.260 0.005 301.285 0.019
2045.0 17.417 0.005 301.596 0.019
2046.0 17.575 0.006 301.901 0.020
2047.0 17.733 0.006 302.201 0.020
2048.0 17.891 0.006 302.495 0.021
2049.0 18.050 0.006 302.784 0.021
2050.0 18.209 0.006 303.068 0.021
2051.0 18.369 0.006 303.348 0.022
2052.0 18.529 0.007 303.622 0.022
2053.0 18.690 0.007 303.892 0.023
2054.0 18.851 0.007 304.157 0.023
2055.0 19.012 0.007 304.417 0.023
2056.0 19.174 0.007 304.673 0.024
2057.0 19.336 0.008 304.925 0.024
2058.0 19.498 0.008 305.173 0.025
2059.0 19.661 0.008 305.417 0.025
2060.0 19.824 0.008 305.656 0.025
2061.0 19.988 0.008 305.892 0.026
2062.0 20.152 0.009 306.124 0.026
2063.0 20.316 0.009 306.352 0.026
2064.0 20.480 0.009 306.576 0.027
2065.0 20.645 0.009 306.797 0.027
2066.0 20.810 0.009 307.015 0.027
2067.0 20.976 0.010 307.229 0.028
2068.0 21.142 0.010 307.439 0.028
2069.0 21.308 0.010 307.647 0.028
2070.0 21.474 0.010 307.851 0.028
2071.0 21.640 0.010 308.052 0.029
2072.0 21.807 0.011 308.250 0.029
2073.0 21.974 0.011 308.445 0.029
2074.0 22.142 0.011 308.636 0.030
2075.0 22.309 0.011 308.826 0.030
2076.0 22.477 0.011 309.012 0.030
2077.0 22.645 0.012 309.195 0.030
2078.0 22.813 0.012 309.376 0.031
2079.0 22.982 0.012 309.554 0.031
2080.0 23.150 0.012 309.730 0.031
2081.0 23.319 0.012 309.903 0.031
2082.0 23.488 0.012 310.073 0.032
2083.0 23.658 0.013 310.241 0.032
2084.0 23.827 0.013 310.407 0.032
2085.0 23.997 0.013 310.570 0.032
2086.0 24.167 0.013 310.731 0.032
2087.0 24.337 0.013 310.890 0.033
2088.0 24.507 0.014 311.047 0.033
2089.0 24.678 0.014 311.201 0.033
2090.0 24.848 0.014 311.353 0.033
2091.0 25.019 0.014 311.504 0.033
2092.0 25.190 0.014 311.652 0.034
2093.0 25.361 0.015 311.798 0.034
2094.0 25.533 0.015 311.942 0.034
2095.0 25.704 0.015 312.085 0.034
2096.0 25.876 0.015 312.225 0.034
2097.0 26.048 0.015 312.364 0.035
2098.0 26.220 0.016 312.500 0.035
2099.0 26.392 0.016 312.635 0.035
2100.0 26.564 0.016 312.768 0.035
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
-------------------------------------------------------------------------------------------------
17150+2450 STF 3127 AB 1 14,52" 294,0° B2025.468 HWI 120/900 APO ASI678MM
-- Image of STF-3127-AB-taken with Equinox 120/900 APO --
wds_id : 17150+2450
discoverer_code : STF
discoverer_number : 3127
discoverer_components : AB
date_first : 1779
date_last : 2023
num_of_obs : 224
pa_first : 163
pa_last : 293
sep_first : 33.8
sep_last : 14.0
mag_primary : 3.12
mag_secondary : 8.3
spectral_type : A3IV
primary_proper_motion_RA : -20
primary_proper_motion_DEC : -158
secondary_proper_motion_RA :
secondary_proper_motion_DEC :
dm_number :
notes : NL U
precise_coordinate : 171501.92+245022.5
WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
L: Linear solution determined
U: Proper motion or other technique: non-physical
Click to expand/collapse the Gaia Input Data:
Star A
solution_id = 1636148068921376768
designation = Gaia DR3 4573412435280434560
source_id = 4573412435280434560
random_index = 1745523404.0
ref_epoch = 2016.0
ra = 258.7578570009893
ra_error = 0.14197738
dec = 24.83850638924531
dec_error = 0.16289322
parallax = 42.48084539964649
parallax_error = 0.22191322
parallax_over_error = 191.43
pm = 158.16135
pmra = -20.95395629310213
pmra_error = 0.18938392
pmdec = -156.76715982654696
pmdec_error = 0.21047005
ra_dec_corr = 0.04606841
ra_parallax_corr = 0.041706894
ra_pmra_corr = 0.20113996
ra_pmdec_corr = 0.03193576
dec_parallax_corr = 0.014007838
dec_pmra_corr = 0.029806353
dec_pmdec_corr = 0.11757241
parallax_pmra_corr = -0.10623032
parallax_pmdec_corr = 0.04441811
pmra_pmdec_corr = 0.00409033
astrometric_n_obs_al = 349
astrometric_n_obs_ac = 349
astrometric_n_good_obs_al = 339
astrometric_n_bad_obs_al = 10
astrometric_gof_al = 43.158325
astrometric_chi2_al = 239447.61
astrometric_excess_noise = 1.9144039
astrometric_excess_noise_sig = 8445.734
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.7535697
pseudocolour_error = 0.037517622
ra_pseudocolour_corr = 0.04298767
dec_pseudocolour_corr = -0.0048097447
parallax_pseudocolour_corr = -0.0017934412
pmra_pseudocolour_corr = 0.03689401
pmdec_pseudocolour_corr = 0.063938096
astrometric_matched_transits = 42
visibility_periods_used = 25
astrometric_sigma5d_max = 0.291957
matched_transits = 45
new_matched_transits = 45
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.051899314
ipd_gof_harmonic_phase = 8.798809
ipd_frac_multi_peak = 1
ipd_frac_odd_win = 0
ruwe = 3.0741808
duplicated_source = false
phot_g_n_obs = 337
phot_g_mean_flux = 1053472302.4487656
phot_g_mean_flux_error = 1931037.6
phot_g_mean_flux_over_error = 545.54724
phot_g_mean_mag = 3.130809
phot_bp_n_obs = 45
phot_bp_mean_flux = 630149651.1341656
phot_bp_mean_flux_error = 9402299.0
phot_bp_mean_flux_over_error = 67.020805
phot_bp_mean_mag = 3.339933
phot_rp_n_obs = 44
phot_rp_mean_flux = 502315589.53259367
phot_rp_mean_flux_error = 1183441.6
phot_rp_mean_flux_over_error = 424.45322
phot_rp_mean_mag = 2.9954538
phot_bp_rp_excess_factor = 1.0749834
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 32
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 36
phot_proc_mode = 0
bp_rp = 0.34447908
bp_g = 0.20912385
g_rp = 0.13535523
phot_variable_flag = NOT_AVAILABLE
l = 46.82326509640693
b = 31.423158195659475
ecl_lon = 254.76352103919984
ecl_lat = 47.684904560929546
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = false
has_xp_sampled = false
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.6221565e-08
classprob_dsc_combmod_galaxy = 1.7616171e-09
classprob_dsc_combmod_star = 0.99954313
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 4573412435279593088
source_id = 4573412435279593088
random_index = 1553845230.0
ref_epoch = 2016.0
ra = 258.754068853417
ra_error = 0.008675803
dec = 24.839735795772295
dec_error = 0.012850957
parallax = 10.080835923597638
parallax_error = 0.015013479
parallax_over_error = 671.45233
pm = 105.90638
pmra = -105.7748959373134
pmra_error = 0.012008648
pmdec = 5.275732242897215
pmdec_error = 0.016081436
ra_dec_corr = 0.2661544
ra_parallax_corr = -0.08919858
ra_pmra_corr = 0.13046895
ra_pmdec_corr = 0.037969016
dec_parallax_corr = 0.017011557
dec_pmra_corr = 0.02161741
dec_pmdec_corr = -0.010707165
parallax_pmra_corr = -0.099328585
parallax_pmdec_corr = -0.019053617
pmra_pmdec_corr = 0.35561237
astrometric_n_obs_al = 397
astrometric_n_obs_ac = 397
astrometric_n_good_obs_al = 396
astrometric_n_bad_obs_al = 1
astrometric_gof_al = -3.4652994
astrometric_chi2_al = 649.27637
astrometric_excess_noise = 0.07550863
astrometric_excess_noise_sig = 6.8583336
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.5585738
astrometric_matched_transits = 46
visibility_periods_used = 26
astrometric_sigma5d_max = 0.02358115
matched_transits = 62
new_matched_transits = 25
matched_transits_removed = 1
ipd_gof_harmonic_amplitude = 0.031334866
ipd_gof_harmonic_phase = 26.461918
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.8778604
duplicated_source = false
phot_g_n_obs = 416
phot_g_mean_flux = 6725469.547527123
phot_g_mean_flux_error = 1153.916
phot_g_mean_flux_over_error = 5828.387
phot_g_mean_mag = 8.61806
phot_bp_n_obs = 41
phot_bp_mean_flux = 3645291.845488553
phot_bp_mean_flux_error = 2810.6335
phot_bp_mean_flux_over_error = 1296.9645
phot_bp_mean_mag = 8.934212
phot_rp_n_obs = 40
phot_rp_mean_flux = 4451405.753905109
phot_rp_mean_flux_error = 2306.2449
phot_rp_mean_flux_over_error = 1930.1531
phot_rp_mean_mag = 8.126653
phot_bp_rp_excess_factor = 1.2038858
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 41
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 40
phot_proc_mode = 0
bp_rp = 0.807559
bp_g = 0.31615162
g_rp = 0.4914074
radial_velocity = 2.2729795
radial_velocity_error = 0.18958326
rv_method_used = 1
rv_nb_transits = 5
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 5
rv_expected_sig_to_noise = 122.247734
rv_renormalised_gof = 0.08369698
rv_chisq_pvalue = 0.3523715
rv_time_duration = 465.80457
rv_amplitude_robust = 0.7155582
rv_template_teff = 5750.0
rv_template_logg = 4.5
rv_template_fe_h = 0.0
rv_atm_param_origin = 101
grvs_mag = 7.8936715
grvs_mag_error = 0.028258137
grvs_mag_nb_transits = 4
phot_variable_flag = NOT_AVAILABLE
l = 46.82340393169766
b = 31.426807202424254
ecl_lon = 254.75823813667267
ecl_lat = 47.68572971122494
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = false
has_xp_sampled = false
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.3750302e-13
classprob_dsc_combmod_galaxy = 6.868207e-13
classprob_dsc_combmod_star = 0.99648726
teff_gspphot = 5694.921
teff_gspphot_lower = 5692.1294
teff_gspphot_upper = 5701.0737
logg_gspphot = 4.1451
logg_gspphot_lower = 4.1439
logg_gspphot_upper = 4.1468
mh_gspphot = -0.1173
mh_gspphot_lower = -0.1238
mh_gspphot_upper = -0.1094
distance_gspphot = 98.8064
distance_gspphot_lower = 98.5468
distance_gspphot_upper = 98.9813
azero_gspphot = 0.0023
azero_gspphot_lower = 0.0006
azero_gspphot_upper = 0.0064
ag_gspphot = 0.0019
ag_gspphot_lower = 0.0005
ag_gspphot_upper = 0.0054
ebpminrp_gspphot = 0.001
ebpminrp_gspphot_lower = 0.0002
ebpminrp_gspphot_upper = 0.0029
libname_gspphot = MARCS
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Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0 .
European Space Agency (ESA) mission Gaia , processed by the Gaia Data Processing and Analysis Consortium (DPAC) . Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Additionally, it incorporates data from the Washington Double Star Catalog, maintained at the U.S. Naval Observatory , and makes use of the Aladin Sky Atlas developed at CDS, Strasbourg Observatory, France.
Double Star Calculator:
Version 1.0 ($Rev: 1734 $)
Report created:
2025-12-29 22:37:18 +0100
www.stella-vega.de
