Gaia Source ID - Star A : 1963780444991070592 Simbad
Gaia Source ID - Star B : 1964155820832897024 Simbad
Observation Epoch : J 2024.680 / 2024-09-06
Angular Separation : 109.920" ± 1.0417 mas
Position Angle : 334.94 ± 0.00040 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 109.778" ± 0.0995 mas
Position Angle : 334.87 ± 0.00004 degrees
LB of Projected Separation (AU): 27724.52 AU
Spatial Separation (pc) : 139.26 ± 9.04 pc
Spatial Separation (ly) : 454.21 ± 29.48 ly
Proper Motion Angular Difference : 92.37 ± 89.03 degrees
Total Proper Motion Difference : 16.01 ± 0.12 mas/yr
Tangential Velocity Difference : 33.41 ± 0.36 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 1963780444991070592 Simbad
Parallax over error : 170.401 : very good
RUWE : 0.960 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 7.257 : G > 3 mag, photometry reliable
Excess noise : 0.110 : poor fit, model deviation significant
Significance : 13.750 : possible double star, motion, mismatch
BP-RP excess factor : 1.278 : photometry consistent
Visibility periods : 28 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.006 : unobtrusive (single star source)
Gaia Source ID : 1964155820832897024 Simbad 11.08
Parallax over error : 28.894 : very good
RUWE : 11.080 : poor astrometric fit, (possible double)
Duplicated source : false : single source
G magnitude : 9.661 : G > 3 mag, photometry reliable
Excess noise : 1.363 : poor fit, model deviation significant
Significance : 2624.147 : possible double star, motion, mismatch
BP-RP excess factor : 1.396 : photometry inconsistent
Visibility periods : 27 : high, indicates well observed star
IPD multi-peak frac : 67% : mulitple peaks detected (possible double)
IDP GoF harmonic amp: 0.086 : slight indication of structure
Spatial separation :
139.26 pc, with an uncertainty range of [ 130.22, 148.30] 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:
51.32 %
Relative Total Proper Motion difference:
287.08 %
Relative Tangential Velocity difference:
500.52 %
Estimated CPM Probability:
0.33 %
CPM-Based Evidence factor:
0.000
Combined Physical Binding Evidence factor:
0.026
RUWE probability for a binary system (Star A):
Zero
RUWE probability for a binary system (Star B):
Very high
-- 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[°]
-------------------------------------------------
1900.0 107.885 0.014 333.923 0.006
1901.0 107.901 0.014 333.931 0.006
1902.0 107.918 0.014 333.939 0.006
1903.0 107.934 0.013 333.948 0.006
1904.0 107.950 0.013 333.956 0.005
1905.0 107.966 0.013 333.964 0.005
1906.0 107.982 0.013 333.972 0.005
1907.0 107.999 0.013 333.981 0.005
1908.0 108.015 0.013 333.989 0.005
1909.0 108.031 0.013 333.997 0.005
1910.0 108.047 0.013 334.006 0.005
1911.0 108.063 0.013 334.014 0.005
1912.0 108.080 0.012 334.022 0.005
1913.0 108.096 0.012 334.030 0.005
1914.0 108.112 0.012 334.039 0.005
1915.0 108.128 0.012 334.047 0.005
1916.0 108.144 0.012 334.055 0.005
1917.0 108.161 0.012 334.064 0.005
1918.0 108.177 0.012 334.072 0.005
1919.0 108.193 0.012 334.080 0.005
1920.0 108.209 0.011 334.088 0.005
1921.0 108.226 0.011 334.097 0.005
1922.0 108.242 0.011 334.105 0.005
1923.0 108.258 0.011 334.113 0.005
1924.0 108.274 0.011 334.121 0.004
1925.0 108.290 0.011 334.130 0.004
1926.0 108.307 0.011 334.138 0.004
1927.0 108.323 0.011 334.146 0.004
1928.0 108.339 0.010 334.154 0.004
1929.0 108.355 0.010 334.163 0.004
1930.0 108.372 0.010 334.171 0.004
1931.0 108.388 0.010 334.179 0.004
1932.0 108.404 0.010 334.187 0.004
1933.0 108.420 0.010 334.195 0.004
1934.0 108.437 0.010 334.204 0.004
1935.0 108.453 0.010 334.212 0.004
1936.0 108.469 0.010 334.220 0.004
1937.0 108.486 0.009 334.228 0.004
1938.0 108.502 0.009 334.237 0.004
1939.0 108.518 0.009 334.245 0.004
1940.0 108.534 0.009 334.253 0.004
1941.0 108.551 0.009 334.261 0.004
1942.0 108.567 0.009 334.269 0.004
1943.0 108.583 0.009 334.278 0.004
1944.0 108.599 0.009 334.286 0.003
1945.0 108.616 0.008 334.294 0.003
1946.0 108.632 0.008 334.302 0.003
1947.0 108.648 0.008 334.310 0.003
1948.0 108.665 0.008 334.319 0.003
1949.0 108.681 0.008 334.327 0.003
1950.0 108.697 0.008 334.335 0.003
1951.0 108.714 0.008 334.343 0.003
1952.0 108.730 0.008 334.351 0.003
1953.0 108.746 0.008 334.360 0.003
1954.0 108.762 0.007 334.368 0.003
1955.0 108.779 0.007 334.376 0.003
1956.0 108.795 0.007 334.384 0.003
1957.0 108.811 0.007 334.392 0.003
1958.0 108.828 0.007 334.400 0.003
1959.0 108.844 0.007 334.409 0.003
1960.0 108.860 0.007 334.417 0.003
1961.0 108.877 0.007 334.425 0.003
1962.0 108.893 0.006 334.433 0.003
1963.0 108.909 0.006 334.441 0.003
1964.0 108.926 0.006 334.449 0.003
1965.0 108.942 0.006 334.457 0.002
1966.0 108.958 0.006 334.466 0.002
1967.0 108.975 0.006 334.474 0.002
1968.0 108.991 0.006 334.482 0.002
1969.0 109.007 0.006 334.490 0.002
1970.0 109.024 0.005 334.498 0.002
1971.0 109.040 0.005 334.506 0.002
1972.0 109.056 0.005 334.514 0.002
1973.0 109.073 0.005 334.523 0.002
1974.0 109.089 0.005 334.531 0.002
1975.0 109.105 0.005 334.539 0.002
1976.0 109.122 0.005 334.547 0.002
1977.0 109.138 0.005 334.555 0.002
1978.0 109.154 0.005 334.563 0.002
1979.0 109.171 0.004 334.571 0.002
1980.0 109.187 0.004 334.579 0.002
1981.0 109.204 0.004 334.588 0.002
1982.0 109.220 0.004 334.596 0.002
1983.0 109.236 0.004 334.604 0.002
1984.0 109.253 0.004 334.612 0.002
1985.0 109.269 0.004 334.620 0.001
1986.0 109.285 0.004 334.628 0.001
1987.0 109.302 0.003 334.636 0.001
1988.0 109.318 0.003 334.644 0.001
1989.0 109.334 0.003 334.652 0.001
1990.0 109.351 0.003 334.660 0.001
1991.0 109.367 0.003 334.669 0.001
1992.0 109.384 0.003 334.677 0.001
1993.0 109.400 0.003 334.685 0.001
1994.0 109.416 0.003 334.693 0.001
1995.0 109.433 0.003 334.701 0.001
1996.0 109.449 0.002 334.709 0.001
1997.0 109.466 0.002 334.717 0.001
1998.0 109.482 0.002 334.725 0.001
1999.0 109.498 0.002 334.733 0.001
2000.0 109.515 0.002 334.741 0.001
2001.0 109.531 0.002 334.749 0.001
2002.0 109.548 0.002 334.757 0.001
2003.0 109.564 0.002 334.765 0.001
2004.0 109.580 0.001 334.773 0.001
2005.0 109.597 0.001 334.781 0.001
2006.0 109.613 0.001 334.790 0.000
2007.0 109.630 0.001 334.798 0.000
2008.0 109.646 0.001 334.806 0.000
2009.0 109.663 0.001 334.814 0.000
2010.0 109.679 0.001 334.822 0.000
2011.0 109.695 0.001 334.830 0.000
2012.0 109.712 0.000 334.838 0.000
2013.0 109.728 0.000 334.846 0.000
2014.0 109.745 0.000 334.854 0.000
2015.0 109.761 0.000 334.862 0.000
2016.0 109.778 0.000 334.870 0.000
2017.0 109.794 0.000 334.878 0.000
2018.0 109.811 0.000 334.886 0.000
2019.0 109.827 0.000 334.894 0.000
2020.0 109.843 0.000 334.902 0.000
2021.0 109.860 0.001 334.910 0.000
2022.0 109.876 0.001 334.918 0.000
2023.0 109.893 0.001 334.926 0.000
2024.0 109.909 0.001 334.934 0.000
2025.0 109.926 0.001 334.942 0.000
2026.0 109.942 0.001 334.950 0.000
2027.0 109.959 0.001 334.958 0.001
2028.0 109.975 0.001 334.966 0.001
2029.0 109.992 0.002 334.974 0.001
2030.0 110.008 0.002 334.982 0.001
2031.0 110.024 0.002 334.990 0.001
2032.0 110.041 0.002 334.998 0.001
2033.0 110.057 0.002 335.006 0.001
2034.0 110.074 0.002 335.014 0.001
2035.0 110.090 0.002 335.022 0.001
2036.0 110.107 0.002 335.030 0.001
2037.0 110.123 0.003 335.038 0.001
2038.0 110.140 0.003 335.046 0.001
2039.0 110.156 0.003 335.054 0.001
2040.0 110.173 0.003 335.062 0.001
2041.0 110.189 0.003 335.070 0.001
2042.0 110.206 0.003 335.078 0.001
2043.0 110.222 0.003 335.086 0.001
2044.0 110.239 0.003 335.094 0.001
2045.0 110.255 0.003 335.102 0.001
2046.0 110.272 0.004 335.110 0.001
2047.0 110.288 0.004 335.117 0.001
2048.0 110.305 0.004 335.125 0.002
2049.0 110.321 0.004 335.133 0.002
2050.0 110.338 0.004 335.141 0.002
2051.0 110.354 0.004 335.149 0.002
2052.0 110.371 0.004 335.157 0.002
2053.0 110.387 0.004 335.165 0.002
2054.0 110.404 0.005 335.173 0.002
2055.0 110.420 0.005 335.181 0.002
2056.0 110.437 0.005 335.189 0.002
2057.0 110.454 0.005 335.197 0.002
2058.0 110.470 0.005 335.205 0.002
2059.0 110.487 0.005 335.213 0.002
2060.0 110.503 0.005 335.221 0.002
2061.0 110.520 0.005 335.229 0.002
2062.0 110.536 0.006 335.236 0.002
2063.0 110.553 0.006 335.244 0.002
2064.0 110.569 0.006 335.252 0.002
2065.0 110.586 0.006 335.260 0.002
2066.0 110.602 0.006 335.268 0.002
2067.0 110.619 0.006 335.276 0.002
2068.0 110.635 0.006 335.284 0.002
2069.0 110.652 0.006 335.292 0.003
2070.0 110.669 0.006 335.300 0.003
2071.0 110.685 0.007 335.308 0.003
2072.0 110.702 0.007 335.316 0.003
2073.0 110.718 0.007 335.323 0.003
2074.0 110.735 0.007 335.331 0.003
2075.0 110.751 0.007 335.339 0.003
2076.0 110.768 0.007 335.347 0.003
2077.0 110.785 0.007 335.355 0.003
2078.0 110.801 0.007 335.363 0.003
2079.0 110.818 0.008 335.371 0.003
2080.0 110.834 0.008 335.379 0.003
2081.0 110.851 0.008 335.386 0.003
2082.0 110.867 0.008 335.394 0.003
2083.0 110.884 0.008 335.402 0.003
2084.0 110.901 0.008 335.410 0.003
2085.0 110.917 0.008 335.418 0.003
2086.0 110.934 0.008 335.426 0.003
2087.0 110.950 0.008 335.434 0.003
2088.0 110.967 0.009 335.441 0.003
2089.0 110.984 0.009 335.449 0.003
2090.0 111.000 0.009 335.457 0.004
2091.0 111.017 0.009 335.465 0.004
2092.0 111.033 0.009 335.473 0.004
2093.0 111.050 0.009 335.481 0.004
2094.0 111.067 0.009 335.489 0.004
2095.0 111.083 0.009 335.496 0.004
2096.0 111.100 0.010 335.504 0.004
2097.0 111.116 0.010 335.512 0.004
2098.0 111.133 0.010 335.520 0.004
2099.0 111.150 0.010 335.528 0.004
2100.0 111.166 0.010 335.536 0.004
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
-------------------------------------------------------------------------------------------------
21268+3731 HEI 9004 AD 1 110.18" 335.11° B2024.685 HWI 120/900 APO ASI678MM
wds_id : 21268+3731
discoverer_code : HEI
discoverer_number : 9004
discoverer_components : AD
date_first : 1965
date_last : 2024
num_of_obs : 7
pa_first : 334
pa_last : 335
sep_first : 109.0
sep_last : 110.2
mag_primary : 7.91
mag_secondary : 9.73
spectral_type : K0
primary_proper_motion_RA : 0
primary_proper_motion_DEC : -22
secondary_proper_motion_RA : 8
secondary_proper_motion_DEC : 4
dm_number : +36 4563
notes :
precise_coordinate : 212647.68+373103.7
Click to expand/collapse the Gaia Input Data:
Star A
solution_id = 1636148068921376768
designation = Gaia DR3 1963780444991070592
source_id = 1963780444991070592
random_index = 900856088.0
ref_epoch = 2016.0
ra = 321.69863584799367
ra_error = 0.009606591
dec = 37.51753925604059
dec_error = 0.01129278
parallax = 2.552248220808484
parallax_error = 0.014977921
parallax_over_error = 170.40071
pm = 21.58103
pmra = -1.364068969344534
pmra_error = 0.013322931
pmdec = -21.5378779784224
pmdec_error = 0.014208239
ra_dec_corr = -0.17890242
ra_parallax_corr = -0.001826161
ra_pmra_corr = -0.112910666
ra_pmdec_corr = -0.030140605
dec_parallax_corr = 0.083535515
dec_pmra_corr = -0.040664077
dec_pmdec_corr = -0.24056073
parallax_pmra_corr = -0.05351547
parallax_pmdec_corr = -0.057280127
pmra_pmdec_corr = -0.20872234
astrometric_n_obs_al = 550
astrometric_n_obs_ac = 550
astrometric_n_good_obs_al = 549
astrometric_n_bad_obs_al = 1
astrometric_gof_al = -1.3948692
astrometric_chi2_al = 1116.8468
astrometric_excess_noise = 0.110353574
astrometric_excess_noise_sig = 13.750453
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.4014672
astrometric_matched_transits = 62
visibility_periods_used = 28
astrometric_sigma5d_max = 0.021122403
matched_transits = 63
new_matched_transits = 24
matched_transits_removed = 6
ipd_gof_harmonic_amplitude = 0.00553942
ipd_gof_harmonic_phase = 96.04603
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.9574073
duplicated_source = false
phot_g_n_obs = 551
phot_g_mean_flux = 23548931.408015512
phot_g_mean_flux_error = 4679.9507
phot_g_mean_flux_over_error = 5031.876
phot_g_mean_mag = 7.2574387
phot_bp_n_obs = 61
phot_bp_mean_flux = 8476731.494147452
phot_bp_mean_flux_error = 7295.611
phot_bp_mean_flux_over_error = 1161.8947
phot_bp_mean_mag = 8.017971
phot_rp_n_obs = 60
phot_rp_mean_flux = 21623052.402102966
phot_rp_mean_flux_error = 13611.894
phot_rp_mean_flux_over_error = 1588.5411
phot_rp_mean_mag = 6.410603
phot_bp_rp_excess_factor = 1.2781805
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 1.607368
bp_g = 0.7605324
g_rp = 0.8468356
radial_velocity = -24.473946
radial_velocity_error = 0.123498164
rv_method_used = 1
rv_nb_transits = 33
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 21
rv_expected_sig_to_noise = 726.86554
rv_renormalised_gof = 2.2223425
rv_chisq_pvalue = 0.0004095251
rv_time_duration = 896.1901
rv_amplitude_robust = 0.9760895
rv_template_teff = 4250.0
rv_template_logg = 1.0
rv_template_fe_h = -0.25
rv_atm_param_origin = 444
vbroad = 7.6477785
vbroad_error = 0.47887766
vbroad_nb_transits = 33
grvs_mag = 6.0798545
grvs_mag_error = 0.0059486083
grvs_mag_nb_transits = 33
phot_variable_flag = NOT_AVAILABLE
l = 84.14753037105889
b = -9.497534016194532
ecl_lon = 341.45687312486336
ecl_lat = 48.96414242127367
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 = 1.02125156e-13
classprob_dsc_combmod_galaxy = 5.1011e-13
classprob_dsc_combmod_star = 0.9999898
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 1964155820832897024
source_id = 1964155820832897024
random_index = 1004901128.0
ref_epoch = 2016.0
ra = 321.68230290206134
ra_error = 0.08535809
dec = 37.54514555056002
dec_error = 0.10461038
parallax = 3.9595865838907587
parallax_error = 0.13703837
parallax_over_error = 28.894001
pm = 5.5753527
pmra = 5.574020390914425
pmra_error = 0.11886918
pmdec = -0.12188806950591535
pmdec_error = 0.12337965
ra_dec_corr = -0.13774124
ra_parallax_corr = -0.110685274
ra_pmra_corr = 0.04619549
ra_pmdec_corr = -0.13244969
dec_parallax_corr = 0.14310023
dec_pmra_corr = -0.17971252
dec_pmdec_corr = -0.19277875
parallax_pmra_corr = -0.15203595
parallax_pmdec_corr = 0.0134853395
pmra_pmdec_corr = -0.09979675
astrometric_n_obs_al = 500
astrometric_n_obs_ac = 500
astrometric_n_good_obs_al = 484
astrometric_n_bad_obs_al = 16
astrometric_gof_al = 184.27519
astrometric_chi2_al = 125694.52
astrometric_excess_noise = 1.3629526
astrometric_excess_noise_sig = 2624.147
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.5882221
astrometric_matched_transits = 57
visibility_periods_used = 27
astrometric_sigma5d_max = 0.17700121
matched_transits = 59
new_matched_transits = 21
matched_transits_removed = 6
ipd_gof_harmonic_amplitude = 0.08640964
ipd_gof_harmonic_phase = 82.416626
ipd_frac_multi_peak = 67
ipd_frac_odd_win = 0
ruwe = 11.075333
duplicated_source = false
phot_g_n_obs = 413
phot_g_mean_flux = 2573070.138002359
phot_g_mean_flux_error = 1028.1902
phot_g_mean_flux_over_error = 2502.5234
phot_g_mean_mag = 9.661238
phot_bp_n_obs = 51
phot_bp_mean_flux = 1735553.8072274467
phot_bp_mean_flux_error = 976.60284
phot_bp_mean_flux_over_error = 1777.1337
phot_bp_mean_mag = 9.739947
phot_rp_n_obs = 51
phot_rp_mean_flux = 1857275.169115097
phot_rp_mean_flux_error = 1510.7206
phot_rp_mean_flux_over_error = 1229.3969
phot_rp_mean_mag = 9.075705
phot_bp_rp_excess_factor = 1.3963199
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 51
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 51
phot_proc_mode = 0
bp_rp = 0.66424274
bp_g = 0.0787096
g_rp = 0.58553314
phot_variable_flag = VARIABLE
l = 84.15786341019802
b = -9.468793841250056
ecl_lon = 341.4595158447308
ecl_lat = 48.994586838421924
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 = 1.3895274e-09
classprob_dsc_combmod_galaxy = 5.690319e-13
classprob_dsc_combmod_star = 0.99882627
Full Disclaimer .
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 22:24:12 +0100
www.stella-vega.de
