Gaia Source ID - Star A : 774274752546451840 Simbad
Gaia Source ID - Star B : 774274645171383296 Simbad
Observation Epoch : J 2025.321 / 2025-04-28
Angular Separation : 63.016" ± 3.2971 mas
Position Angle : 113.72 ± 0.00480 degrees
Star A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 63.026" ± 0.2418 mas
Position Angle : 113.74 ± 0.00032 degrees
LB of Projected Separation (AU): 6036.41 AU
Spatial Separation (pc) : 73.96 ± 10.06 pc
Spatial Separation (ly) : 241.23 ± 32.82 ly
Proper Motion Angular Difference : 14.84 ± 12.97 degrees
Total Proper Motion Difference : 1.09 ± 0.40 mas/yr
Tangential Velocity Difference : 4.53 ± 0.58 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 774274752546451840 Simbad
Epoch : J 2016.000
Right Ascension (RA) : 11h 55m 5.76s
Declination (Dec) : 46° 28' 36.63"
Distance (pc) : 95.78 ± 6.09 pc
Distance (ly) : 312.38 ± 19.85 ly
Magnitude (Gaia G-band) : 6.76 mag
Absolute Magnitude : 1.85 ± 0.32 mag
Spectral Type (color index) : B
Luminosity (solar luminosities) : 13.40 +4.56/−3.40 L☉
Mass estimation (solar masses) : 2.25 M☉
RUWE : 19.02
Position Angle of Proper Motion : 78.05 ± 12.68 degrees
Total Proper Motion : 10.41 ± 0.34 mas/yr
Total Proper Motion (Gaia) : 10.41 mas/yr
Tangential Velocity : 4.73 ± 0.34 km/s
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 : 774274645171383296 Simbad
Epoch : J 2016.000
Right Ascension (RA) : 11h 55m 11.35s
Declination (Dec) : 46° 28' 11.25"
Distance (parsecs) : 169.74 ± 8.01 pc
Distance (lightyears) : 553.60 ± 26.13 ly
Magnitude (Gaia G-band) : 6.99 mag
Absolute Magnitude : 0.84 ± 0.24 mag
Spectral Type (color index) : B
Luminosity (solar luminosities) : 33.91 +8.23/−6.62 L☉
Mass estimation (solar masses) : 3.01 M☉
RUWE : 7.38
Position Angle of Proper Motion : 63.21 ± 2.73 degrees
Total Proper Motion : 11.50 ± 0.20 mas/yr
Total Proper Motion (Gaia) : 11.50 mas/yr
Tangential Velocity : 9.25 ± 0.47 km/s
Parallax over error : 21.184 : very good
RUWE : 7.380 : poor astrometric fit, (possible double)
Duplicated source : false : single source
G magnitude : 6.993 : G > 3 mag, photometry reliable
Excess noise : 2.065 : poor fit, model deviation significant
Significance : 5537.380 : possible double star, motion, mismatch
BP-RP excess factor : 1.171 : photometry consistent
Visibility periods : 20 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.024 : unobtrusive (single star source)
Spatial separation :
73.96 pc, with an uncertainty range of [ 63.90, 84.02] 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:
8.25 %
Relative Total Proper Motion difference:
10.51 %
Relative Tangential Velocity difference:
95.84 %
Estimated CPM Probability:
43.94 %
CPM-Based Evidence factor:
0.193
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):
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 63.160 0.041 114.035 0.059
1901.0 63.159 0.041 114.033 0.059
1902.0 63.158 0.040 114.030 0.058
1903.0 63.157 0.040 114.028 0.058
1904.0 63.155 0.040 114.025 0.057
1905.0 63.154 0.039 114.023 0.057
1906.0 63.153 0.039 114.020 0.056
1907.0 63.152 0.039 114.018 0.056
1908.0 63.151 0.038 114.015 0.055
1909.0 63.150 0.038 114.012 0.055
1910.0 63.148 0.038 114.010 0.054
1911.0 63.147 0.037 114.007 0.054
1912.0 63.146 0.037 114.005 0.053
1913.0 63.145 0.037 114.002 0.053
1914.0 63.144 0.036 114.000 0.052
1915.0 63.143 0.036 113.997 0.052
1916.0 63.142 0.035 113.995 0.051
1917.0 63.140 0.035 113.992 0.051
1918.0 63.139 0.035 113.990 0.050
1919.0 63.138 0.034 113.987 0.050
1920.0 63.137 0.034 113.984 0.049
1921.0 63.136 0.034 113.982 0.049
1922.0 63.135 0.033 113.979 0.048
1923.0 63.133 0.033 113.977 0.048
1924.0 63.132 0.033 113.974 0.047
1925.0 63.131 0.032 113.972 0.047
1926.0 63.130 0.032 113.969 0.046
1927.0 63.129 0.032 113.967 0.046
1928.0 63.128 0.031 113.964 0.045
1929.0 63.126 0.031 113.962 0.045
1930.0 63.125 0.030 113.959 0.044
1931.0 63.124 0.030 113.957 0.044
1932.0 63.123 0.030 113.954 0.043
1933.0 63.122 0.029 113.951 0.043
1934.0 63.121 0.029 113.949 0.042
1935.0 63.120 0.029 113.946 0.042
1936.0 63.118 0.028 113.944 0.041
1937.0 63.117 0.028 113.941 0.040
1938.0 63.116 0.028 113.939 0.040
1939.0 63.115 0.027 113.936 0.039
1940.0 63.114 0.027 113.934 0.039
1941.0 63.113 0.027 113.931 0.038
1942.0 63.111 0.026 113.929 0.038
1943.0 63.110 0.026 113.926 0.037
1944.0 63.109 0.026 113.923 0.037
1945.0 63.108 0.025 113.921 0.036
1946.0 63.107 0.025 113.918 0.036
1947.0 63.106 0.024 113.916 0.035
1948.0 63.105 0.024 113.913 0.035
1949.0 63.103 0.024 113.911 0.034
1950.0 63.102 0.023 113.908 0.034
1951.0 63.101 0.023 113.906 0.033
1952.0 63.100 0.023 113.903 0.033
1953.0 63.099 0.022 113.901 0.032
1954.0 63.098 0.022 113.898 0.032
1955.0 63.096 0.022 113.895 0.031
1956.0 63.095 0.021 113.893 0.031
1957.0 63.094 0.021 113.890 0.030
1958.0 63.093 0.021 113.888 0.030
1959.0 63.092 0.020 113.885 0.029
1960.0 63.091 0.020 113.883 0.029
1961.0 63.090 0.019 113.880 0.028
1962.0 63.088 0.019 113.878 0.028
1963.0 63.087 0.019 113.875 0.027
1964.0 63.086 0.018 113.873 0.027
1965.0 63.085 0.018 113.870 0.026
1966.0 63.084 0.018 113.867 0.026
1967.0 63.083 0.017 113.865 0.025
1968.0 63.082 0.017 113.862 0.025
1969.0 63.080 0.017 113.860 0.024
1970.0 63.079 0.016 113.857 0.024
1971.0 63.078 0.016 113.855 0.023
1972.0 63.077 0.016 113.852 0.023
1973.0 63.076 0.015 113.850 0.022
1974.0 63.075 0.015 113.847 0.022
1975.0 63.073 0.015 113.845 0.021
1976.0 63.072 0.014 113.842 0.021
1977.0 63.071 0.014 113.839 0.020
1978.0 63.070 0.013 113.837 0.020
1979.0 63.069 0.013 113.834 0.019
1980.0 63.068 0.013 113.832 0.018
1981.0 63.067 0.012 113.829 0.018
1982.0 63.065 0.012 113.827 0.017
1983.0 63.064 0.012 113.824 0.017
1984.0 63.063 0.011 113.822 0.016
1985.0 63.062 0.011 113.819 0.016
1986.0 63.061 0.011 113.817 0.015
1987.0 63.060 0.010 113.814 0.015
1988.0 63.059 0.010 113.811 0.014
1989.0 63.057 0.010 113.809 0.014
1990.0 63.056 0.009 113.806 0.013
1991.0 63.055 0.009 113.804 0.013
1992.0 63.054 0.008 113.801 0.012
1993.0 63.053 0.008 113.799 0.012
1994.0 63.052 0.008 113.796 0.011
1995.0 63.050 0.007 113.794 0.011
1996.0 63.049 0.007 113.791 0.010
1997.0 63.048 0.007 113.789 0.010
1998.0 63.047 0.006 113.786 0.009
1999.0 63.046 0.006 113.783 0.009
2000.0 63.045 0.006 113.781 0.008
2001.0 63.044 0.005 113.778 0.008
2002.0 63.042 0.005 113.776 0.007
2003.0 63.041 0.005 113.773 0.007
2004.0 63.040 0.004 113.771 0.006
2005.0 63.039 0.004 113.768 0.006
2006.0 63.038 0.004 113.766 0.005
2007.0 63.037 0.003 113.763 0.005
2008.0 63.036 0.003 113.760 0.004
2009.0 63.034 0.002 113.758 0.004
2010.0 63.033 0.002 113.755 0.003
2011.0 63.032 0.002 113.753 0.003
2012.0 63.031 0.001 113.750 0.002
2013.0 63.030 0.001 113.748 0.002
2014.0 63.029 0.001 113.745 0.001
2015.0 63.028 0.000 113.743 0.001
2016.0 63.026 0.000 113.740 0.000
2017.0 63.025 0.000 113.738 0.001
2018.0 63.024 0.001 113.735 0.001
2019.0 63.023 0.001 113.732 0.002
2020.0 63.022 0.001 113.730 0.002
2021.0 63.021 0.002 113.727 0.003
2022.0 63.020 0.002 113.725 0.003
2023.0 63.018 0.002 113.722 0.004
2024.0 63.017 0.003 113.720 0.004
2025.0 63.016 0.003 113.717 0.005
2026.0 63.015 0.004 113.715 0.005
2027.0 63.014 0.004 113.712 0.006
2028.0 63.013 0.004 113.709 0.006
2029.0 63.012 0.005 113.707 0.007
2030.0 63.010 0.005 113.704 0.007
2031.0 63.009 0.005 113.702 0.008
2032.0 63.008 0.006 113.699 0.008
2033.0 63.007 0.006 113.697 0.009
2034.0 63.006 0.006 113.694 0.009
2035.0 63.005 0.007 113.692 0.010
2036.0 63.004 0.007 113.689 0.010
2037.0 63.002 0.007 113.686 0.011
2038.0 63.001 0.008 113.684 0.011
2039.0 63.000 0.008 113.681 0.012
2040.0 62.999 0.008 113.679 0.012
2041.0 62.998 0.009 113.676 0.013
2042.0 62.997 0.009 113.674 0.013
2043.0 62.996 0.010 113.671 0.014
2044.0 62.994 0.010 113.669 0.014
2045.0 62.993 0.010 113.666 0.015
2046.0 62.992 0.011 113.664 0.015
2047.0 62.991 0.011 113.661 0.016
2048.0 62.990 0.011 113.658 0.016
2049.0 62.989 0.012 113.656 0.017
2050.0 62.988 0.012 113.653 0.017
2051.0 62.986 0.012 113.651 0.018
2052.0 62.985 0.013 113.648 0.019
2053.0 62.984 0.013 113.646 0.019
2054.0 62.983 0.013 113.643 0.020
2055.0 62.982 0.014 113.641 0.020
2056.0 62.981 0.014 113.638 0.021
2057.0 62.980 0.014 113.635 0.021
2058.0 62.978 0.015 113.633 0.022
2059.0 62.977 0.015 113.630 0.022
2060.0 62.976 0.015 113.628 0.023
2061.0 62.975 0.016 113.625 0.023
2062.0 62.974 0.016 113.623 0.024
2063.0 62.973 0.017 113.620 0.024
2064.0 62.972 0.017 113.618 0.025
2065.0 62.970 0.017 113.615 0.025
2066.0 62.969 0.018 113.612 0.026
2067.0 62.968 0.018 113.610 0.026
2068.0 62.967 0.018 113.607 0.027
2069.0 62.966 0.019 113.605 0.027
2070.0 62.965 0.019 113.602 0.028
2071.0 62.964 0.019 113.600 0.028
2072.0 62.963 0.020 113.597 0.029
2073.0 62.961 0.020 113.595 0.029
2074.0 62.960 0.020 113.592 0.030
2075.0 62.959 0.021 113.589 0.030
2076.0 62.958 0.021 113.587 0.031
2077.0 62.957 0.021 113.584 0.031
2078.0 62.956 0.022 113.582 0.032
2079.0 62.955 0.022 113.579 0.032
2080.0 62.953 0.023 113.577 0.033
2081.0 62.952 0.023 113.574 0.033
2082.0 62.951 0.023 113.572 0.034
2083.0 62.950 0.024 113.569 0.035
2084.0 62.949 0.024 113.566 0.035
2085.0 62.948 0.024 113.564 0.036
2086.0 62.947 0.025 113.561 0.036
2087.0 62.945 0.025 113.559 0.037
2088.0 62.944 0.025 113.556 0.037
2089.0 62.943 0.026 113.554 0.038
2090.0 62.942 0.026 113.551 0.038
2091.0 62.941 0.026 113.549 0.039
2092.0 62.940 0.027 113.546 0.039
2093.0 62.939 0.027 113.543 0.040
2094.0 62.938 0.027 113.541 0.040
2095.0 62.936 0.028 113.538 0.041
2096.0 62.935 0.028 113.536 0.041
2097.0 62.934 0.028 113.533 0.042
2098.0 62.933 0.029 113.531 0.042
2099.0 62.932 0.029 113.528 0.043
2100.0 62.931 0.030 113.526 0.043
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
--------------------------------------------------------------------------------------------------
11551+4629 STF 1579 AB,D 1 63.08" 113.9° B2025.325 HWI 120/900 APO ASI678MM
-- Image of STF-1579-AB-D-taken with Equinox 120/900 APO --
wds_id : 11551+4629
discoverer_code : STF
discoverer_number : 1579
discoverer_components : AB,D
date_first : 1782
date_last : 2021
num_of_obs : 73
pa_first : 112
pa_last : 114
sep_first : 60.1
sep_last : 62.9
mag_primary : 6.68
mag_secondary : 6.97
spectral_type : A3Vn
primary_proper_motion_RA : 10
primary_proper_motion_DEC : 3
secondary_proper_motion_RA : 12
secondary_proper_motion_DEC : 0
dm_number : +47 1914
notes : NZ
precise_coordinate : 115505.74+462836.6
WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
Z: Statistically the same parallax: 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 774274645171383296
source_id = 774274645171383296
random_index = 1743054968.0
ref_epoch = 2016.0
ra = 178.7972762991468
ra_error = 0.12172699
dec = 46.46979149833794
dec_error = 0.15316093
parallax = 5.891500896970825
parallax_error = 0.2781155
parallax_over_error = 21.18365
pm = 11.501036
pmra = 10.26633049351303
pmra_error = 0.16050729
pmdec = 5.184234238154266
pmdec_error = 0.30895546
ra_dec_corr = 0.3250416
ra_parallax_corr = -0.13067548
ra_pmra_corr = -0.07458491
ra_pmdec_corr = -0.11717435
dec_parallax_corr = -0.08769319
dec_pmra_corr = -0.082080476
dec_pmdec_corr = -0.28135467
parallax_pmra_corr = 0.3095438
parallax_pmdec_corr = -0.38412017
pmra_pmdec_corr = -0.12970805
astrometric_n_obs_al = 560
astrometric_n_obs_ac = 560
astrometric_n_good_obs_al = 558
astrometric_n_bad_obs_al = 2
astrometric_gof_al = 139.18712
astrometric_chi2_al = 189079.42
astrometric_excess_noise = 2.0651567
astrometric_excess_noise_sig = 5537.38
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7357187
astrometric_matched_transits = 63
visibility_periods_used = 20
astrometric_sigma5d_max = 0.4389246
matched_transits = 68
new_matched_transits = 20
matched_transits_removed = 7
ipd_gof_harmonic_amplitude = 0.02361119
ipd_gof_harmonic_phase = 32.775608
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 7.377657
duplicated_source = false
phot_g_n_obs = 592
phot_g_mean_flux = 30038706.06063138
phot_g_mean_flux_error = 12628.361
phot_g_mean_flux_over_error = 2378.6702
phot_g_mean_mag = 6.9931636
phot_bp_n_obs = 64
phot_bp_mean_flux = 21753742.49214423
phot_bp_mean_flux_error = 14572.207
phot_bp_mean_flux_over_error = 1492.8241
phot_bp_mean_mag = 6.994707
phot_rp_n_obs = 56
phot_rp_mean_flux = 13434541.103312565
phot_rp_mean_flux_error = 9936.565
phot_rp_mean_flux_over_error = 1352.0306
phot_rp_mean_mag = 6.9273386
phot_bp_rp_excess_factor = 1.1714314
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 37
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 56
phot_proc_mode = 0
bp_rp = 0.06736851
bp_g = 0.0015435219
g_rp = 0.065824986
phot_variable_flag = VARIABLE
l = 149.0973874999766
b = 67.69731969930059
ecl_lon = 156.34267346719253
ecl_lat = 41.25676217749452
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 = 1.1784966e-13
classprob_dsc_combmod_galaxy = 5.886531e-13
classprob_dsc_combmod_star = 0.9984357
teff_gspphot = 9990.507
teff_gspphot_lower = 9975.8955
teff_gspphot_upper = 9997.771
logg_gspphot = 3.823
logg_gspphot_lower = 3.761
logg_gspphot_upper = 3.9218
mh_gspphot = -0.8296
mh_gspphot_lower = -0.9909
mh_gspphot_upper = -0.6427
distance_gspphot = 197.1803
distance_gspphot_lower = 167.0487
distance_gspphot_upper = 220.027
azero_gspphot = 0.2133
azero_gspphot_lower = 0.2089
azero_gspphot_upper = 0.2173
ag_gspphot = 0.205
ag_gspphot_lower = 0.2006
ag_gspphot_upper = 0.2088
ebpminrp_gspphot = 0.1091
ebpminrp_gspphot_lower = 0.1067
ebpminrp_gspphot_upper = 0.1112
libname_gspphot = PHOENIX
This result is provided without warranty. For all terms, see the 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 .
The Double Star Calculator makes use of data from the 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 22:29:44 +0100
www.stella-vega.de