Gaia Source ID - Star A : 774274752546451840 Simbad
Gaia Source ID - Star B : 774274748251116672 Simbad
Observation Epoch : J 2025.321 / 2025-04-28
Angular Separation : 3.913" ± 4.3549 mas
Position Angle : 41.58 ± 0.05830 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 3.914" ± 0.2974 mas
Position Angle : 41.45 ± 0.00404 degrees
LB of Projected Separation (AU): 374.91 AU
Spatial Separation (pc) : 132.03 ± 6.22 pc
Spatial Separation (ly) : 430.62 ± 20.28 ly
Proper Motion Angular Difference : 4.58 ± 12.70 degrees
Total Proper Motion Difference : 0.46 ± 0.34 mas/yr
Tangential Velocity Difference : 7.01 ± 0.34 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 774274752546451840 Simbad 19.02
Parallax over error : 15.739 : good
RUWE : 19.020 : poor astrometric fit, (possible double)
Duplicated source : false : single source
G magnitude : 6.758 : G > 3 mag, photometry reliable
Excess noise : 4.344 : poor fit, model deviation significant
Significance : 24067.781 : possible double star, motion, mismatch
BP-RP excess factor : 1.267 : photometry consistent
Visibility periods : 19 : high, indicates well observed star
IPD multi-peak frac : 42% : mulitple peaks detected (possible double)
IDP GoF harmonic amp: 0.099 : slight indication of structure
Gaia Source ID : 774274748251116672 Simbad
Parallax over error : 179.200 : very good
RUWE : 0.960 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 8.684 : G > 3 mag, photometry reliable
Excess noise : 0.136 : poor fit, model deviation significant
Significance : 27.738 : possible double star, motion, mismatch
BP-RP excess factor : 1.198 : photometry consistent
Visibility periods : 20 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.009 : unobtrusive (single star source)
Spatial separation :
132.03 pc, with an uncertainty range of [ 125.81, 138.25] 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:
2.54 %
Relative Total Proper Motion difference:
4.38 %
Relative Tangential Velocity difference:
148.28 %
Estimated CPM Probability:
55.89 %
CPM-Based Evidence factor:
0.312
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 3.937 0.055 39.855 0.702
1901.0 3.936 0.055 39.868 0.696
1902.0 3.936 0.054 39.882 0.690
1903.0 3.936 0.054 39.896 0.684
1904.0 3.936 0.053 39.909 0.678
1905.0 3.936 0.053 39.923 0.672
1906.0 3.935 0.052 39.937 0.666
1907.0 3.935 0.052 39.951 0.661
1908.0 3.935 0.051 39.964 0.655
1909.0 3.935 0.051 39.978 0.649
1910.0 3.935 0.050 39.992 0.643
1911.0 3.934 0.050 40.005 0.637
1912.0 3.934 0.049 40.019 0.631
1913.0 3.934 0.049 40.033 0.625
1914.0 3.934 0.048 40.047 0.619
1915.0 3.934 0.048 40.060 0.613
1916.0 3.933 0.047 40.074 0.607
1917.0 3.933 0.047 40.088 0.602
1918.0 3.933 0.046 40.102 0.596
1919.0 3.933 0.046 40.115 0.590
1920.0 3.933 0.046 40.129 0.584
1921.0 3.932 0.045 40.143 0.578
1922.0 3.932 0.045 40.157 0.572
1923.0 3.932 0.044 40.170 0.566
1924.0 3.932 0.044 40.184 0.560
1925.0 3.932 0.043 40.198 0.554
1926.0 3.931 0.043 40.212 0.548
1927.0 3.931 0.042 40.225 0.542
1928.0 3.931 0.042 40.239 0.536
1929.0 3.931 0.041 40.253 0.530
1930.0 3.931 0.041 40.267 0.524
1931.0 3.930 0.040 40.280 0.518
1932.0 3.930 0.040 40.294 0.512
1933.0 3.930 0.039 40.308 0.506
1934.0 3.930 0.039 40.322 0.500
1935.0 3.930 0.038 40.335 0.494
1936.0 3.929 0.038 40.349 0.488
1937.0 3.929 0.037 40.363 0.482
1938.0 3.929 0.037 40.377 0.476
1939.0 3.929 0.036 40.390 0.470
1940.0 3.929 0.036 40.404 0.464
1941.0 3.928 0.035 40.418 0.458
1942.0 3.928 0.035 40.432 0.452
1943.0 3.928 0.034 40.445 0.446
1944.0 3.928 0.034 40.459 0.440
1945.0 3.928 0.034 40.473 0.434
1946.0 3.928 0.033 40.487 0.428
1947.0 3.927 0.033 40.501 0.422
1948.0 3.927 0.032 40.514 0.416
1949.0 3.927 0.032 40.528 0.410
1950.0 3.927 0.031 40.542 0.404
1951.0 3.927 0.031 40.556 0.398
1952.0 3.926 0.030 40.569 0.392
1953.0 3.926 0.030 40.583 0.386
1954.0 3.926 0.029 40.597 0.380
1955.0 3.926 0.029 40.611 0.374
1956.0 3.926 0.028 40.625 0.368
1957.0 3.925 0.028 40.638 0.362
1958.0 3.925 0.027 40.652 0.356
1959.0 3.925 0.027 40.666 0.350
1960.0 3.925 0.026 40.680 0.344
1961.0 3.925 0.026 40.694 0.338
1962.0 3.924 0.025 40.707 0.332
1963.0 3.924 0.025 40.721 0.326
1964.0 3.924 0.024 40.735 0.320
1965.0 3.924 0.024 40.749 0.314
1966.0 3.924 0.024 40.763 0.308
1967.0 3.923 0.023 40.776 0.301
1968.0 3.923 0.023 40.790 0.295
1969.0 3.923 0.022 40.804 0.289
1970.0 3.923 0.022 40.818 0.283
1971.0 3.923 0.021 40.832 0.277
1972.0 3.923 0.021 40.845 0.271
1973.0 3.922 0.020 40.859 0.265
1974.0 3.922 0.020 40.873 0.259
1975.0 3.922 0.019 40.887 0.253
1976.0 3.922 0.019 40.901 0.247
1977.0 3.922 0.018 40.915 0.241
1978.0 3.921 0.018 40.928 0.234
1979.0 3.921 0.017 40.942 0.228
1980.0 3.921 0.017 40.956 0.222
1981.0 3.921 0.016 40.970 0.216
1982.0 3.921 0.016 40.984 0.210
1983.0 3.920 0.015 40.997 0.204
1984.0 3.920 0.015 41.011 0.198
1985.0 3.920 0.015 41.025 0.192
1986.0 3.920 0.014 41.039 0.185
1987.0 3.920 0.014 41.053 0.179
1988.0 3.920 0.013 41.067 0.173
1989.0 3.919 0.013 41.080 0.167
1990.0 3.919 0.012 41.094 0.161
1991.0 3.919 0.012 41.108 0.155
1992.0 3.919 0.011 41.122 0.149
1993.0 3.919 0.011 41.136 0.142
1994.0 3.918 0.010 41.150 0.136
1995.0 3.918 0.010 41.163 0.130
1996.0 3.918 0.009 41.177 0.124
1997.0 3.918 0.009 41.191 0.118
1998.0 3.918 0.008 41.205 0.112
1999.0 3.918 0.008 41.219 0.105
2000.0 3.917 0.007 41.233 0.099
2001.0 3.917 0.007 41.247 0.093
2002.0 3.917 0.007 41.260 0.087
2003.0 3.917 0.006 41.274 0.081
2004.0 3.917 0.006 41.288 0.075
2005.0 3.916 0.005 41.302 0.068
2006.0 3.916 0.005 41.316 0.062
2007.0 3.916 0.004 41.330 0.056
2008.0 3.916 0.004 41.343 0.050
2009.0 3.916 0.003 41.357 0.044
2010.0 3.916 0.003 41.371 0.038
2011.0 3.915 0.002 41.385 0.031
2012.0 3.915 0.002 41.399 0.025
2013.0 3.915 0.001 41.413 0.019
2014.0 3.915 0.001 41.427 0.013
2015.0 3.915 0.001 41.441 0.007
2016.0 3.914 0.000 41.454 0.004
2017.0 3.914 0.001 41.468 0.007
2018.0 3.914 0.001 41.482 0.013
2019.0 3.914 0.001 41.496 0.019
2020.0 3.914 0.002 41.510 0.025
2021.0 3.914 0.002 41.524 0.031
2022.0 3.913 0.003 41.538 0.038
2023.0 3.913 0.003 41.552 0.044
2024.0 3.913 0.004 41.565 0.050
2025.0 3.913 0.004 41.579 0.056
2026.0 3.913 0.005 41.593 0.063
2027.0 3.913 0.005 41.607 0.069
2028.0 3.912 0.006 41.621 0.075
2029.0 3.912 0.006 41.635 0.081
2030.0 3.912 0.007 41.649 0.088
2031.0 3.912 0.007 41.663 0.094
2032.0 3.912 0.007 41.676 0.100
2033.0 3.911 0.008 41.690 0.106
2034.0 3.911 0.008 41.704 0.113
2035.0 3.911 0.009 41.718 0.119
2036.0 3.911 0.009 41.732 0.125
2037.0 3.911 0.010 41.746 0.131
2038.0 3.911 0.010 41.760 0.138
2039.0 3.910 0.011 41.774 0.144
2040.0 3.910 0.011 41.788 0.150
2041.0 3.910 0.012 41.801 0.157
2042.0 3.910 0.012 41.815 0.163
2043.0 3.910 0.013 41.829 0.169
2044.0 3.910 0.013 41.843 0.176
2045.0 3.909 0.013 41.857 0.182
2046.0 3.909 0.014 41.871 0.188
2047.0 3.909 0.014 41.885 0.195
2048.0 3.909 0.015 41.899 0.201
2049.0 3.909 0.015 41.913 0.207
2050.0 3.909 0.016 41.927 0.213
2051.0 3.908 0.016 41.941 0.220
2052.0 3.908 0.017 41.954 0.226
2053.0 3.908 0.017 41.968 0.232
2054.0 3.908 0.018 41.982 0.239
2055.0 3.908 0.018 41.996 0.245
2056.0 3.908 0.019 42.010 0.252
2057.0 3.907 0.019 42.024 0.258
2058.0 3.907 0.019 42.038 0.264
2059.0 3.907 0.020 42.052 0.271
2060.0 3.907 0.020 42.066 0.277
2061.0 3.907 0.021 42.080 0.283
2062.0 3.906 0.021 42.094 0.290
2063.0 3.906 0.022 42.108 0.296
2064.0 3.906 0.022 42.122 0.302
2065.0 3.906 0.023 42.135 0.309
2066.0 3.906 0.023 42.149 0.315
2067.0 3.906 0.024 42.163 0.321
2068.0 3.905 0.024 42.177 0.328
2069.0 3.905 0.025 42.191 0.334
2070.0 3.905 0.025 42.205 0.341
2071.0 3.905 0.025 42.219 0.347
2072.0 3.905 0.026 42.233 0.353
2073.0 3.905 0.026 42.247 0.360
2074.0 3.904 0.027 42.261 0.366
2075.0 3.904 0.027 42.275 0.373
2076.0 3.904 0.028 42.289 0.379
2077.0 3.904 0.028 42.303 0.385
2078.0 3.904 0.029 42.317 0.392
2079.0 3.904 0.029 42.331 0.398
2080.0 3.904 0.030 42.344 0.405
2081.0 3.903 0.030 42.358 0.411
2082.0 3.903 0.030 42.372 0.418
2083.0 3.903 0.031 42.386 0.424
2084.0 3.903 0.031 42.400 0.430
2085.0 3.903 0.032 42.414 0.437
2086.0 3.903 0.032 42.428 0.443
2087.0 3.902 0.033 42.442 0.450
2088.0 3.902 0.033 42.456 0.456
2089.0 3.902 0.034 42.470 0.463
2090.0 3.902 0.034 42.484 0.469
2091.0 3.902 0.035 42.498 0.475
2092.0 3.902 0.035 42.512 0.482
2093.0 3.901 0.035 42.526 0.488
2094.0 3.901 0.036 42.540 0.495
2095.0 3.901 0.036 42.554 0.501
2096.0 3.901 0.037 42.568 0.508
2097.0 3.901 0.037 42.582 0.514
2098.0 3.901 0.038 42.596 0.521
2099.0 3.900 0.038 42.610 0.527
2100.0 3.900 0.039 42.624 0.534
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
--------------------------------------------------------------------------------------------------
11551+4629 STF 1579 AB,C 1 3.90" 41.7° B2025.325 HWI 120/900 APO ASI678MM
-- Image of STF-1579-AB-C-taken with Equinox 120/900 APO --
wds_id : 11551+4629
discoverer_code : STF
discoverer_number : 1579
discoverer_components : AB,C
date_first : 1782
date_last : 2023
num_of_obs : 91
pa_first : 36
pa_last : 43
sep_first : 4.0
sep_last : 3.8
mag_primary : 6.68
mag_secondary : 8.32
spectral_type : A3Vn
primary_proper_motion_RA : 10
primary_proper_motion_DEC : 3
secondary_proper_motion_RA : 10
secondary_proper_motion_DEC : 3
dm_number :
notes : NU
precise_coordinate : 115505.74+462836.6
WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
U: Proper motion or other technique: non-physical
Click to expand/collapse the Gaia Input Data:
Star A
solution_id = 1636148068921376768
designation = Gaia DR3 774274752546451840
source_id = 774274752546451840
random_index = 868975463.0
ref_epoch = 2016.0
ra = 178.77400777798417
ra_error = 0.26277202
dec = 46.476842104458655
dec_error = 0.36287037
parallax = 10.441039206360314
parallax_error = 0.6633668
parallax_over_error = 15.739467
pm = 10.407601
pmra = 10.182006661556263
pmra_error = 0.32703307
pmdec = 2.1552043513195995
pmdec_error = 0.5895838
ra_dec_corr = 0.40329677
ra_parallax_corr = -0.08554888
ra_pmra_corr = -0.061871804
ra_pmdec_corr = -0.18068357
dec_parallax_corr = -0.24208368
dec_pmra_corr = -0.15260163
dec_pmdec_corr = -0.26927564
parallax_pmra_corr = 0.28180107
parallax_pmdec_corr = -0.365288
pmra_pmdec_corr = -0.04681324
astrometric_n_obs_al = 565
astrometric_n_obs_ac = 565
astrometric_n_good_obs_al = 559
astrometric_n_bad_obs_al = 6
astrometric_gof_al = 305.84308
astrometric_chi2_al = 1239301.1
astrometric_excess_noise = 4.3435035
astrometric_excess_noise_sig = 24067.781
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7135465
astrometric_matched_transits = 64
visibility_periods_used = 19
astrometric_sigma5d_max = 0.84583646
matched_transits = 74
new_matched_transits = 22
matched_transits_removed = 9
ipd_gof_harmonic_amplitude = 0.09921016
ipd_gof_harmonic_phase = 64.00861
ipd_frac_multi_peak = 42
ipd_frac_odd_win = 0
ruwe = 19.018715
duplicated_source = false
phot_g_n_obs = 581
phot_g_mean_flux = 37299154.05847285
phot_g_mean_flux_error = 124893.65
phot_g_mean_flux_over_error = 298.64734
phot_g_mean_mag = 6.7581196
phot_bp_n_obs = 53
phot_bp_mean_flux = 28469049.41570463
phot_bp_mean_flux_error = 22045.455
phot_bp_mean_flux_over_error = 1291.3795
phot_bp_mean_mag = 6.70261
phot_rp_n_obs = 52
phot_rp_mean_flux = 18795395.824105058
phot_rp_mean_flux_error = 10329.836
phot_rp_mean_flux_over_error = 1819.5251
phot_rp_mean_mag = 6.562767
phot_bp_rp_excess_factor = 1.2671721
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 3
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 2
phot_proc_mode = 0
bp_rp = 0.13984299
bp_g = -0.055509567
g_rp = 0.19535255
phot_variable_flag = NOT_AVAILABLE
l = 149.12148034006654
b = 67.68239135856699
ecl_lon = 156.31962297118923
ecl_lat = 41.25426838432049
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 = 1.32577e-13
classprob_dsc_combmod_galaxy = 6.622155e-13
classprob_dsc_combmod_star = 0.99698234
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 774274748251116672
source_id = 774274748251116672
random_index = 1619990195.0
ref_epoch = 2016.0
ra = 178.77505310558536
ra_error = 0.010425724
dec = 46.47765705007816
dec_error = 0.014282206
parallax = 4.389702636967105
parallax_error = 0.02449616
parallax_over_error = 179.19962
pm = 10.863676
pmra = 10.773844456245552
pmra_error = 0.013784942
pmdec = 1.3941761626216902
pmdec_error = 0.0270773
ra_dec_corr = 0.3240615
ra_parallax_corr = -0.069981605
ra_pmra_corr = -0.067711785
ra_pmdec_corr = -0.14720362
dec_parallax_corr = -0.26241717
dec_pmra_corr = -0.113780275
dec_pmdec_corr = -0.25406083
parallax_pmra_corr = 0.25291198
parallax_pmdec_corr = -0.15228795
pmra_pmdec_corr = -0.062068544
astrometric_n_obs_al = 544
astrometric_n_obs_ac = 544
astrometric_n_good_obs_al = 539
astrometric_n_bad_obs_al = 5
astrometric_gof_al = -1.4366384
astrometric_chi2_al = 1853.0383
astrometric_excess_noise = 0.1358772
astrometric_excess_noise_sig = 27.737535
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7110132
astrometric_matched_transits = 61
visibility_periods_used = 20
astrometric_sigma5d_max = 0.037783947
matched_transits = 67
new_matched_transits = 21
matched_transits_removed = 1
ipd_gof_harmonic_amplitude = 0.008638834
ipd_gof_harmonic_phase = 151.48007
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.9557483
duplicated_source = false
phot_g_n_obs = 524
phot_g_mean_flux = 6328016.880905948
phot_g_mean_flux_error = 1431.1533
phot_g_mean_flux_over_error = 4421.6206
phot_g_mean_mag = 8.684197
phot_bp_n_obs = 10
phot_bp_mean_flux = 4512053.497750374
phot_bp_mean_flux_error = 26766.264
phot_bp_mean_flux_over_error = 168.5724
phot_bp_mean_mag = 8.702606
phot_rp_n_obs = 10
phot_rp_mean_flux = 3071113.4322598563
phot_rp_mean_flux_error = 15791.519
phot_rp_mean_flux_over_error = 194.47867
phot_rp_mean_mag = 8.529655
phot_bp_rp_excess_factor = 1.198348
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 10
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 10
phot_proc_mode = 0
bp_rp = 0.17295074
bp_g = 0.018408775
g_rp = 0.15454197
radial_velocity = -9.880743
radial_velocity_error = 0.5576117
rv_method_used = 1
rv_nb_transits = 8
rv_nb_deblended_transits = 1
rv_visibility_periods_used = 7
rv_expected_sig_to_noise = 114.521965
rv_renormalised_gof = -1.4079399
rv_chisq_pvalue = 0.9327394
rv_time_duration = 952.6522
rv_amplitude_robust = 3.8543587
rv_template_teff = 8000.0
rv_template_logg = 4.5
rv_template_fe_h = 0.25
rv_atm_param_origin = 555
vbroad = 75.68369
vbroad_error = 2.0153263
vbroad_nb_transits = 7
grvs_mag = 8.481632
grvs_mag_error = 0.019500414
grvs_mag_nb_transits = 7
phot_variable_flag = NOT_AVAILABLE
l = 149.11869925243946
b = 67.68213253645986
ecl_lon = 156.31986212697916
ecl_lat = 41.255340767090026
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 = 1.6994629e-13
classprob_dsc_combmod_galaxy = 8.488732e-13
classprob_dsc_combmod_star = 0.99327993
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 22:29:35 +0100
www.stella-vega.de
