Gaia Source ID - Star A : 1905509077493237760 Simbad
Gaia Source ID - Star B : 1905509111852975232 Simbad
Observation Epoch : J 2024.664 / 2024-08-31
Angular Separation : 26.681" ± 0.8649 mas
Position Angle : 294.04 ± 0.00220 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 26.878" ± 0.0716 mas
Position Angle : 293.24 ± 0.00019 degrees
LB of Projected Separation (AU): 4068.64 AU
Spatial Separation (pc) : 4.00 ± 3.20 pc
Spatial Separation (ly) : 13.04 ± 10.44 ly
Proper Motion Angular Difference : 97.92 ± 0.83 degrees
Total Proper Motion Difference : 36.05 ± 0.12 mas/yr
Tangential Velocity Difference : 26.75 ± 0.70 km/s
Radial Velocity Difference : 1.74 ± 1.76 km/s
Space Velocity Difference : 19.52 ± 0.95 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 1905509077493237760 Simbad 5.65
Parallax over error : 48.828 : very good
RUWE : 5.650 : poor astrometric fit, (possible double)
Duplicated source : false : single source
G magnitude : 7.410 : G > 3 mag, photometry reliable
Excess noise : 1.122 : poor fit, model deviation significant
Significance : 1155.633 : possible double star, motion, mismatch
BP-RP excess factor : 1.181 : photometry consistent
Visibility periods : 21 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.018 : unobtrusive (single star source)
Gaia Source ID : 1905509111852975232 Simbad
Parallax over error : 431.643 : very good
RUWE : 0.980 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 9.678 : G > 3 mag, photometry reliable
Excess noise : 0.082 : poor fit, model deviation significant
Significance : 9.920 : possible double star, motion, mismatch
BP-RP excess factor : 1.192 : photometry consistent
Visibility periods : 20 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.015 : unobtrusive (single star source)
Spatial separation :
824680.6 AU, with an uncertainty range of [ 164367.6, 1484993.6] AU
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:
54.40 %
Relative Total Proper Motion difference:
350.88 %
Relative Tangential Velocity difference:
362.79 %
Relative Radial Velocity difference:
12.47 %
Relative Space Velocity difference:
112.50 %
Estimated CPM Probability:
0.01 %
CPM-Based Evidence factor:
0.000
Combined Physical Binding Evidence factor:
0.026
RUWE probability for a binary system (Star A):
Very 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 29.965 0.011 283.643 0.027
1901.0 29.935 0.011 283.717 0.027
1902.0 29.905 0.011 283.791 0.027
1903.0 29.876 0.011 283.865 0.027
1904.0 29.846 0.011 283.940 0.027
1905.0 29.816 0.011 284.014 0.026
1906.0 29.787 0.011 284.089 0.026
1907.0 29.757 0.010 284.164 0.026
1908.0 29.728 0.010 284.239 0.026
1909.0 29.698 0.010 284.314 0.025
1910.0 29.669 0.010 284.389 0.025
1911.0 29.640 0.010 284.464 0.025
1912.0 29.610 0.010 284.540 0.025
1913.0 29.581 0.010 284.616 0.025
1914.0 29.552 0.010 284.691 0.024
1915.0 29.523 0.010 284.767 0.024
1916.0 29.494 0.010 284.844 0.024
1917.0 29.465 0.009 284.920 0.024
1918.0 29.436 0.009 284.996 0.023
1919.0 29.407 0.009 285.073 0.023
1920.0 29.378 0.009 285.150 0.023
1921.0 29.349 0.009 285.227 0.023
1922.0 29.320 0.009 285.304 0.023
1923.0 29.292 0.009 285.381 0.022
1924.0 29.263 0.009 285.458 0.022
1925.0 29.234 0.009 285.536 0.022
1926.0 29.206 0.009 285.613 0.022
1927.0 29.177 0.009 285.691 0.021
1928.0 29.149 0.008 285.769 0.021
1929.0 29.121 0.008 285.847 0.021
1930.0 29.092 0.008 285.925 0.021
1931.0 29.064 0.008 286.004 0.021
1932.0 29.036 0.008 286.082 0.020
1933.0 29.008 0.008 286.161 0.020
1934.0 28.980 0.008 286.240 0.020
1935.0 28.952 0.008 286.319 0.020
1936.0 28.924 0.008 286.398 0.019
1937.0 28.896 0.008 286.478 0.019
1938.0 28.868 0.008 286.557 0.019
1939.0 28.840 0.007 286.637 0.019
1940.0 28.812 0.007 286.717 0.019
1941.0 28.784 0.007 286.796 0.018
1942.0 28.757 0.007 286.877 0.018
1943.0 28.729 0.007 286.957 0.018
1944.0 28.702 0.007 287.037 0.018
1945.0 28.674 0.007 287.118 0.017
1946.0 28.647 0.007 287.199 0.017
1947.0 28.619 0.007 287.279 0.017
1948.0 28.592 0.007 287.360 0.017
1949.0 28.565 0.006 287.442 0.016
1950.0 28.538 0.006 287.523 0.016
1951.0 28.510 0.006 287.604 0.016
1952.0 28.483 0.006 287.686 0.016
1953.0 28.456 0.006 287.768 0.016
1954.0 28.429 0.006 287.850 0.015
1955.0 28.402 0.006 287.932 0.015
1956.0 28.376 0.006 288.014 0.015
1957.0 28.349 0.006 288.097 0.015
1958.0 28.322 0.006 288.179 0.014
1959.0 28.295 0.006 288.262 0.014
1960.0 28.269 0.005 288.345 0.014
1961.0 28.242 0.005 288.428 0.014
1962.0 28.216 0.005 288.511 0.013
1963.0 28.189 0.005 288.594 0.013
1964.0 28.163 0.005 288.678 0.013
1965.0 28.136 0.005 288.762 0.013
1966.0 28.110 0.005 288.846 0.012
1967.0 28.084 0.005 288.930 0.012
1968.0 28.058 0.005 289.014 0.012
1969.0 28.032 0.005 289.098 0.012
1970.0 28.006 0.004 289.182 0.011
1971.0 27.980 0.004 289.267 0.011
1972.0 27.954 0.004 289.352 0.011
1973.0 27.928 0.004 289.437 0.011
1974.0 27.902 0.004 289.522 0.011
1975.0 27.877 0.004 289.607 0.010
1976.0 27.851 0.004 289.692 0.010
1977.0 27.825 0.004 289.778 0.010
1978.0 27.800 0.004 289.864 0.010
1979.0 27.774 0.004 289.950 0.009
1980.0 27.749 0.004 290.036 0.009
1981.0 27.724 0.003 290.122 0.009
1982.0 27.698 0.003 290.208 0.009
1983.0 27.673 0.003 290.295 0.008
1984.0 27.648 0.003 290.381 0.008
1985.0 27.623 0.003 290.468 0.008
1986.0 27.598 0.003 290.555 0.008
1987.0 27.573 0.003 290.642 0.007
1988.0 27.548 0.003 290.730 0.007
1989.0 27.523 0.003 290.817 0.007
1990.0 27.498 0.003 290.905 0.007
1991.0 27.474 0.002 290.992 0.006
1992.0 27.449 0.002 291.080 0.006
1993.0 27.425 0.002 291.168 0.006
1994.0 27.400 0.002 291.257 0.006
1995.0 27.376 0.002 291.345 0.005
1996.0 27.351 0.002 291.434 0.005
1997.0 27.327 0.002 291.522 0.005
1998.0 27.303 0.002 291.611 0.005
1999.0 27.278 0.002 291.700 0.004
2000.0 27.254 0.002 291.789 0.004
2001.0 27.230 0.001 291.879 0.004
2002.0 27.206 0.001 291.968 0.004
2003.0 27.182 0.001 292.058 0.003
2004.0 27.159 0.001 292.148 0.003
2005.0 27.135 0.001 292.238 0.003
2006.0 27.111 0.001 292.328 0.003
2007.0 27.087 0.001 292.418 0.002
2008.0 27.064 0.001 292.508 0.002
2009.0 27.040 0.001 292.599 0.002
2010.0 27.017 0.001 292.690 0.002
2011.0 26.993 0.000 292.781 0.001
2012.0 26.970 0.000 292.872 0.001
2013.0 26.947 0.000 292.963 0.001
2014.0 26.924 0.000 293.054 0.001
2015.0 26.901 0.000 293.146 0.000
2016.0 26.878 0.000 293.238 0.000
2017.0 26.855 0.000 293.330 0.000
2018.0 26.832 0.000 293.422 0.001
2019.0 26.809 0.000 293.514 0.001
2020.0 26.786 0.000 293.606 0.001
2021.0 26.763 0.001 293.699 0.001
2022.0 26.741 0.001 293.791 0.002
2023.0 26.718 0.001 293.884 0.002
2024.0 26.696 0.001 293.977 0.002
2025.0 26.673 0.001 294.070 0.002
2026.0 26.651 0.001 294.163 0.003
2027.0 26.629 0.001 294.257 0.003
2028.0 26.607 0.001 294.350 0.003
2029.0 26.584 0.001 294.444 0.003
2030.0 26.562 0.001 294.538 0.004
2031.0 26.540 0.001 294.632 0.004
2032.0 26.519 0.002 294.726 0.004
2033.0 26.497 0.002 294.821 0.004
2034.0 26.475 0.002 294.915 0.005
2035.0 26.453 0.002 295.010 0.005
2036.0 26.432 0.002 295.105 0.005
2037.0 26.410 0.002 295.200 0.005
2038.0 26.389 0.002 295.295 0.006
2039.0 26.367 0.002 295.390 0.006
2040.0 26.346 0.002 295.486 0.006
2041.0 26.325 0.003 295.581 0.007
2042.0 26.303 0.003 295.677 0.007
2043.0 26.282 0.003 295.773 0.007
2044.0 26.261 0.003 295.869 0.007
2045.0 26.240 0.003 295.965 0.008
2046.0 26.219 0.003 296.061 0.008
2047.0 26.199 0.003 296.158 0.008
2048.0 26.178 0.003 296.255 0.008
2049.0 26.157 0.003 296.352 0.009
2050.0 26.137 0.003 296.449 0.009
2051.0 26.116 0.004 296.546 0.009
2052.0 26.096 0.004 296.643 0.009
2053.0 26.075 0.004 296.740 0.010
2054.0 26.055 0.004 296.838 0.010
2055.0 26.035 0.004 296.936 0.010
2056.0 26.015 0.004 297.034 0.011
2057.0 25.995 0.004 297.132 0.011
2058.0 25.975 0.004 297.230 0.011
2059.0 25.955 0.004 297.328 0.011
2060.0 25.935 0.004 297.427 0.012
2061.0 25.915 0.005 297.525 0.012
2062.0 25.895 0.005 297.624 0.012
2063.0 25.876 0.005 297.723 0.012
2064.0 25.856 0.005 297.822 0.013
2065.0 25.837 0.005 297.921 0.013
2066.0 25.817 0.005 298.021 0.013
2067.0 25.798 0.005 298.120 0.013
2068.0 25.779 0.005 298.220 0.014
2069.0 25.760 0.005 298.320 0.014
2070.0 25.741 0.005 298.420 0.014
2071.0 25.722 0.006 298.520 0.015
2072.0 25.703 0.006 298.620 0.015
2073.0 25.684 0.006 298.721 0.015
2074.0 25.665 0.006 298.821 0.015
2075.0 25.647 0.006 298.922 0.016
2076.0 25.628 0.006 299.023 0.016
2077.0 25.610 0.006 299.124 0.016
2078.0 25.591 0.006 299.225 0.016
2079.0 25.573 0.006 299.327 0.017
2080.0 25.555 0.007 299.428 0.017
2081.0 25.536 0.007 299.530 0.017
2082.0 25.518 0.007 299.631 0.017
2083.0 25.500 0.007 299.733 0.018
2084.0 25.482 0.007 299.835 0.018
2085.0 25.464 0.007 299.938 0.018
2086.0 25.447 0.007 300.040 0.019
2087.0 25.429 0.007 300.142 0.019
2088.0 25.411 0.007 300.245 0.019
2089.0 25.394 0.007 300.348 0.019
2090.0 25.376 0.008 300.451 0.020
2091.0 25.359 0.008 300.554 0.020
2092.0 25.342 0.008 300.657 0.020
2093.0 25.324 0.008 300.760 0.020
2094.0 25.307 0.008 300.864 0.021
2095.0 25.290 0.008 300.967 0.021
2096.0 25.273 0.008 301.071 0.021
2097.0 25.256 0.008 301.175 0.022
2098.0 25.240 0.008 301.279 0.022
2099.0 25.223 0.009 301.383 0.022
2100.0 25.206 0.009 301.487 0.022
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
-------------------------------------------------------------------------------------------------
22205+3507 STT 469 AB 1 26.74" 293.1° B2024.668 HWI 120/900 APO ASI678MM
-- Image of STT-469-AB-taken with Equinox 120/900 APO --
wds_id : 22205+3507
discoverer_code : STT
discoverer_number : 469
discoverer_components : AB
date_first : 1843
date_last : 2024
num_of_obs : 63
pa_first : 280
pa_last : 293
sep_first : 32.2
sep_last : 26.6
mag_primary : 7.53
mag_secondary : 9.73
spectral_type : A9III
primary_proper_motion_RA : -29
primary_proper_motion_DEC : -35
secondary_proper_motion_RA : 7
secondary_proper_motion_DEC : -6
dm_number : +34 4657
notes : L Y
precise_coordinate : 222031.21+350653.4
WDS Notes:
----------
L: Linear solution determined
Y: Statistically different parallax: non-physical
Click to expand/collapse the Gaia Input Data:
Star A
solution_id = 1636148068921376768
designation = Gaia DR3 1905509077493237760
source_id = 1905509077493237760
random_index = 1048319404.0
ref_epoch = 2016.0
ra = 335.1297769249094
ra_error = 0.08173539
dec = 35.114571957754805
dec_error = 0.09090466
parallax = 6.436061448448477
parallax_error = 0.1318101
parallax_over_error = 48.82829
pm = 46.32865
pmra = -29.353451727715477
pmra_error = 0.11346358
pmdec = -35.842975394560426
pmdec_error = 0.12459851
ra_dec_corr = 0.014418056
ra_parallax_corr = 0.038103335
ra_pmra_corr = 0.08414045
ra_pmdec_corr = -0.19487047
dec_parallax_corr = -0.014875539
dec_pmra_corr = -0.17529592
dec_pmdec_corr = -0.14335924
parallax_pmra_corr = 0.08135634
parallax_pmdec_corr = -0.3134302
pmra_pmdec_corr = -0.13085878
astrometric_n_obs_al = 372
astrometric_n_obs_ac = 372
astrometric_n_good_obs_al = 372
astrometric_n_bad_obs_al = 0
astrometric_gof_al = 88.26067
astrometric_chi2_al = 37045.69
astrometric_excess_noise = 1.121722
astrometric_excess_noise_sig = 1155.6333
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.663142
astrometric_matched_transits = 42
visibility_periods_used = 21
astrometric_sigma5d_max = 0.18135571
matched_transits = 52
new_matched_transits = 21
matched_transits_removed = 4
ipd_gof_harmonic_amplitude = 0.017975291
ipd_gof_harmonic_phase = 47.01814
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 5.6473236
duplicated_source = false
phot_g_n_obs = 439
phot_g_mean_flux = 20456933.029400945
phot_g_mean_flux_error = 5750.873
phot_g_mean_flux_over_error = 3557.1875
phot_g_mean_mag = 7.4102654
phot_bp_n_obs = 50
phot_bp_mean_flux = 12843433.977193253
phot_bp_mean_flux_error = 12875.035
phot_bp_mean_flux_over_error = 997.54553
phot_bp_mean_mag = 7.566839
phot_rp_n_obs = 48
phot_rp_mean_flux = 11307929.508762946
phot_rp_mean_flux_error = 10652.561
phot_rp_mean_flux_over_error = 1061.5222
phot_rp_mean_mag = 7.1144376
phot_bp_rp_excess_factor = 1.1805955
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 30
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 29
phot_proc_mode = 0
bp_rp = 0.45240164
bp_g = 0.15657377
g_rp = 0.29582787
radial_velocity = 13.964208
radial_velocity_error = 1.7394141
rv_method_used = 1
rv_nb_transits = 29
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 18
rv_expected_sig_to_noise = 443.97842
rv_renormalised_gof = 21.956255
rv_chisq_pvalue = 0.0
rv_time_duration = 1017.90765
rv_amplitude_robust = 31.703287
rv_template_teff = 5250.0
rv_template_logg = 3.0
rv_template_fe_h = -2.0
rv_atm_param_origin = 110
grvs_mag = 6.9941015
grvs_mag_error = 0.0057360963
grvs_mag_nb_transits = 29
phot_variable_flag = NOT_AVAILABLE
l = 91.11941591858375
b = -18.270432427224495
ecl_lon = 353.3269330196267
ecl_lat = 41.65105771627077
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 = 1.020797e-11
classprob_dsc_combmod_galaxy = 5.0988297e-11
classprob_dsc_combmod_star = 1.0005623e-06
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 1905509111852975232
source_id = 1905509111852975232
random_index = 1129968652.0
ref_epoch = 2016.0
ra = 335.12138994883014
ra_error = 0.009428703
dec = 35.11751735677659
dec_error = 0.010749699
parallax = 6.60604903742371
parallax_error = 0.015304429
parallax_over_error = 431.64294
pm = 10.2750845
pmra = 8.771084453781329
pmra_error = 0.013074461
pmdec = -5.352144181347633
pmdec_error = 0.015390785
ra_dec_corr = -0.09293093
ra_parallax_corr = 0.018123144
ra_pmra_corr = 0.33623475
ra_pmdec_corr = -0.2228349
dec_parallax_corr = 0.043467738
dec_pmra_corr = -0.20338492
dec_pmdec_corr = -0.043612495
parallax_pmra_corr = -0.0381252
parallax_pmdec_corr = -0.33116755
pmra_pmdec_corr = -0.16016164
astrometric_n_obs_al = 391
astrometric_n_obs_ac = 391
astrometric_n_good_obs_al = 386
astrometric_n_bad_obs_al = 5
astrometric_gof_al = -0.5990057
astrometric_chi2_al = 812.76575
astrometric_excess_noise = 0.08245007
astrometric_excess_noise_sig = 9.919776
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.6010144
astrometric_matched_transits = 44
visibility_periods_used = 20
astrometric_sigma5d_max = 0.022345835
matched_transits = 58
new_matched_transits = 21
matched_transits_removed = 1
ipd_gof_harmonic_amplitude = 0.015437595
ipd_gof_harmonic_phase = 37.350605
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.9775106
duplicated_source = false
phot_g_n_obs = 449
phot_g_mean_flux = 2533005.379882847
phot_g_mean_flux_error = 324.41245
phot_g_mean_flux_over_error = 7807.9785
phot_g_mean_mag = 9.678277
phot_bp_n_obs = 43
phot_bp_mean_flux = 1476981.2355243077
phot_bp_mean_flux_error = 418.84705
phot_bp_mean_flux_over_error = 3526.3022
phot_bp_mean_mag = 9.915105
phot_rp_n_obs = 41
phot_rp_mean_flux = 1541220.0359702255
phot_rp_mean_flux_error = 335.53436
phot_rp_mean_flux_over_error = 4593.33
phot_rp_mean_mag = 9.278234
phot_bp_rp_excess_factor = 1.1915495
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 2
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 0.63687134
bp_g = 0.23682785
g_rp = 0.4000435
radial_velocity = 15.705881
radial_velocity_error = 0.24994639
rv_method_used = 1
rv_nb_transits = 16
rv_nb_deblended_transits = 5
rv_visibility_periods_used = 12
rv_expected_sig_to_noise = 114.93108
rv_renormalised_gof = -0.007950559
rv_chisq_pvalue = 0.30260447
rv_time_duration = 847.88086
rv_amplitude_robust = 2.5401516
rv_template_teff = 5750.0
rv_template_logg = 3.5
rv_template_fe_h = 0.0
rv_atm_param_origin = 440
vbroad = 8.345931
vbroad_error = 4.3908453
vbroad_nb_transits = 6
grvs_mag = 9.096287
grvs_mag_error = 0.006704387
grvs_mag_nb_transits = 7
phot_variable_flag = NOT_AVAILABLE
l = 91.11527697264684
b = -18.264084717624343
ecl_lon = 353.32079708890336
ecl_lat = 41.65695030930434
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 = 1.7308995e-13
classprob_dsc_combmod_galaxy = 8.6457566e-13
classprob_dsc_combmod_star = 0.99296397
teff_gspphot = 6259.028
teff_gspphot_lower = 6255.723
teff_gspphot_upper = 6265.436
logg_gspphot = 4.1612
logg_gspphot_lower = 4.1584
logg_gspphot_upper = 4.1641
mh_gspphot = -0.6931
mh_gspphot_lower = -0.7029
mh_gspphot_upper = -0.6839
distance_gspphot = 150.6175
distance_gspphot_lower = 150.276
distance_gspphot_upper = 150.9938
azero_gspphot = 0.0024
azero_gspphot_lower = 0.0006
azero_gspphot_upper = 0.0059
ag_gspphot = 0.0021
ag_gspphot_lower = 0.0005
ag_gspphot_upper = 0.0051
ebpminrp_gspphot = 0.0011
ebpminrp_gspphot_lower = 0.0002
ebpminrp_gspphot_upper = 0.0028
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 22:42:22 +0100
www.stella-vega.de
