Gaia Source ID - Star A : 2866862568110717312 Simbad
Gaia Source ID - Star B : 2866862602470454912 Simbad
Observation Epoch : J 2024.667 / 2024-09-01
Angular Separation : 35.697" ± 0.2973 mas
Position Angle : 28.71 ± 0.00050 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 35.495" ± 0.0293 mas
Position Angle : 29.00 ± 0.00005 degrees
LB of Projected Separation (AU): 10852.74 AU
Spatial Separation (pc) : 76.38 ± 6.11 pc
Spatial Separation (ly) : 249.13 ± 19.92 ly
Proper Motion Angular Difference : 161.54 ± 1.62 degrees
Total Proper Motion Difference : 11.96 ± 0.03 mas/yr
Tangential Velocity Difference : 25.25 ± 0.60 km/s
Radial Velocity Difference : 9.82 ± 2.33 km/s
Space Velocity Difference : 19.76 ± 1.71 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 2866862568110717312 Simbad
Parallax over error : 66.712 : very good
RUWE : 0.890 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 5.725 : G > 3 mag, photometry reliable
Excess noise : 0.250 : poor fit, model deviation significant
Significance : 75.653 : possible double star, motion, mismatch
BP-RP excess factor : 1.516 : photometry inconsistent
Visibility periods : 15 : high, indicates well observed star
IPD multi-peak frac : 6% : mulitple peaks detected (possible double)
IDP GoF harmonic amp: 0.007 : unobtrusive (single star source)
Gaia Source ID : 2866862602470454912 Simbad
Parallax over error : 144.196 : very good
RUWE : 1.160 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 10.110 : G > 3 mag, photometry reliable
Excess noise : 0.149 : poor fit, model deviation significant
Significance : 23.777 : possible double star, motion, mismatch
BP-RP excess factor : 1.174 : photometry consistent
Visibility periods : 17 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.012 : unobtrusive (single star source)
Spatial separation :
76.38 pc, with an uncertainty range of [ 70.27, 82.49] 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:
89.74 %
Relative Total Proper Motion difference:
120.81 %
Relative Tangential Velocity difference:
175.97 %
Relative Radial Velocity difference:
-70.09 %
Relative Space Velocity difference:
98.53 %
Estimated CPM Probability:
0.00 %
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):
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 32.888 0.004 33.267 0.008
1901.0 32.909 0.004 33.228 0.008
1902.0 32.931 0.004 33.188 0.008
1903.0 32.953 0.004 33.148 0.008
1904.0 32.974 0.004 33.109 0.007
1905.0 32.996 0.004 33.069 0.007
1906.0 33.018 0.004 33.030 0.007
1907.0 33.039 0.004 32.991 0.007
1908.0 33.061 0.004 32.951 0.007
1909.0 33.083 0.004 32.912 0.007
1910.0 33.105 0.004 32.873 0.007
1911.0 33.127 0.004 32.834 0.007
1912.0 33.148 0.004 32.795 0.007
1913.0 33.170 0.004 32.756 0.007
1914.0 33.192 0.004 32.717 0.007
1915.0 33.214 0.004 32.678 0.007
1916.0 33.236 0.003 32.639 0.007
1917.0 33.258 0.003 32.600 0.007
1918.0 33.280 0.003 32.561 0.007
1919.0 33.301 0.003 32.523 0.006
1920.0 33.323 0.003 32.484 0.006
1921.0 33.345 0.003 32.445 0.006
1922.0 33.367 0.003 32.407 0.006
1923.0 33.389 0.003 32.368 0.006
1924.0 33.411 0.003 32.330 0.006
1925.0 33.433 0.003 32.292 0.006
1926.0 33.455 0.003 32.253 0.006
1927.0 33.477 0.003 32.215 0.006
1928.0 33.499 0.003 32.177 0.006
1929.0 33.521 0.003 32.138 0.006
1930.0 33.544 0.003 32.100 0.006
1931.0 33.566 0.003 32.062 0.006
1932.0 33.588 0.003 32.024 0.006
1933.0 33.610 0.003 31.986 0.005
1934.0 33.632 0.003 31.948 0.005
1935.0 33.654 0.003 31.910 0.005
1936.0 33.676 0.003 31.872 0.005
1937.0 33.699 0.003 31.835 0.005
1938.0 33.721 0.003 31.797 0.005
1939.0 33.743 0.003 31.759 0.005
1940.0 33.765 0.003 31.721 0.005
1941.0 33.787 0.003 31.684 0.005
1942.0 33.810 0.003 31.646 0.005
1943.0 33.832 0.003 31.609 0.005
1944.0 33.854 0.002 31.571 0.005
1945.0 33.877 0.002 31.534 0.005
1946.0 33.899 0.002 31.496 0.005
1947.0 33.921 0.002 31.459 0.005
1948.0 33.944 0.002 31.422 0.004
1949.0 33.966 0.002 31.385 0.004
1950.0 33.988 0.002 31.348 0.004
1951.0 34.011 0.002 31.310 0.004
1952.0 34.033 0.002 31.273 0.004
1953.0 34.055 0.002 31.236 0.004
1954.0 34.078 0.002 31.199 0.004
1955.0 34.100 0.002 31.162 0.004
1956.0 34.123 0.002 31.126 0.004
1957.0 34.145 0.002 31.089 0.004
1958.0 34.168 0.002 31.052 0.004
1959.0 34.190 0.002 31.015 0.004
1960.0 34.213 0.002 30.979 0.004
1961.0 34.235 0.002 30.942 0.004
1962.0 34.258 0.002 30.905 0.004
1963.0 34.280 0.002 30.869 0.003
1964.0 34.303 0.002 30.832 0.003
1965.0 34.326 0.002 30.796 0.003
1966.0 34.348 0.002 30.759 0.003
1967.0 34.371 0.002 30.723 0.003
1968.0 34.393 0.002 30.687 0.003
1969.0 34.416 0.002 30.651 0.003
1970.0 34.439 0.002 30.614 0.003
1971.0 34.461 0.002 30.578 0.003
1972.0 34.484 0.002 30.542 0.003
1973.0 34.507 0.001 30.506 0.003
1974.0 34.529 0.001 30.470 0.003
1975.0 34.552 0.001 30.434 0.003
1976.0 34.575 0.001 30.398 0.003
1977.0 34.598 0.001 30.362 0.003
1978.0 34.620 0.001 30.326 0.002
1979.0 34.643 0.001 30.291 0.002
1980.0 34.666 0.001 30.255 0.002
1981.0 34.689 0.001 30.219 0.002
1982.0 34.712 0.001 30.184 0.002
1983.0 34.734 0.001 30.148 0.002
1984.0 34.757 0.001 30.113 0.002
1985.0 34.780 0.001 30.077 0.002
1986.0 34.803 0.001 30.042 0.002
1987.0 34.826 0.001 30.006 0.002
1988.0 34.849 0.001 29.971 0.002
1989.0 34.872 0.001 29.936 0.002
1990.0 34.895 0.001 29.900 0.002
1991.0 34.918 0.001 29.865 0.002
1992.0 34.941 0.001 29.830 0.002
1993.0 34.963 0.001 29.795 0.001
1994.0 34.986 0.001 29.760 0.001
1995.0 35.009 0.001 29.725 0.001
1996.0 35.032 0.001 29.690 0.001
1997.0 35.055 0.001 29.655 0.001
1998.0 35.079 0.001 29.620 0.001
1999.0 35.102 0.001 29.585 0.001
2000.0 35.125 0.001 29.550 0.001
2001.0 35.148 0.001 29.515 0.001
2002.0 35.171 0.000 29.481 0.001
2003.0 35.194 0.000 29.446 0.001
2004.0 35.217 0.000 29.411 0.001
2005.0 35.240 0.000 29.377 0.001
2006.0 35.263 0.000 29.342 0.001
2007.0 35.286 0.000 29.308 0.001
2008.0 35.310 0.000 29.273 0.001
2009.0 35.333 0.000 29.239 0.000
2010.0 35.356 0.000 29.205 0.000
2011.0 35.379 0.000 29.170 0.000
2012.0 35.402 0.000 29.136 0.000
2013.0 35.425 0.000 29.102 0.000
2014.0 35.449 0.000 29.068 0.000
2015.0 35.472 0.000 29.034 0.000
2016.0 35.495 0.000 29.000 0.000
2017.0 35.518 0.000 28.966 0.000
2018.0 35.542 0.000 28.932 0.000
2019.0 35.565 0.000 28.898 0.000
2020.0 35.588 0.000 28.864 0.000
2021.0 35.612 0.000 28.830 0.000
2022.0 35.635 0.000 28.796 0.000
2023.0 35.658 0.000 28.762 0.000
2024.0 35.682 0.000 28.729 0.001
2025.0 35.705 0.000 28.695 0.001
2026.0 35.728 0.000 28.661 0.001
2027.0 35.752 0.000 28.628 0.001
2028.0 35.775 0.000 28.594 0.001
2029.0 35.799 0.000 28.561 0.001
2030.0 35.822 0.000 28.527 0.001
2031.0 35.846 0.001 28.494 0.001
2032.0 35.869 0.001 28.460 0.001
2033.0 35.893 0.001 28.427 0.001
2034.0 35.916 0.001 28.394 0.001
2035.0 35.939 0.001 28.360 0.001
2036.0 35.963 0.001 28.327 0.001
2037.0 35.987 0.001 28.294 0.001
2038.0 36.010 0.001 28.261 0.001
2039.0 36.034 0.001 28.228 0.001
2040.0 36.057 0.001 28.195 0.002
2041.0 36.081 0.001 28.162 0.002
2042.0 36.104 0.001 28.129 0.002
2043.0 36.128 0.001 28.096 0.002
2044.0 36.151 0.001 28.063 0.002
2045.0 36.175 0.001 28.030 0.002
2046.0 36.199 0.001 27.998 0.002
2047.0 36.222 0.001 27.965 0.002
2048.0 36.246 0.001 27.932 0.002
2049.0 36.270 0.001 27.900 0.002
2050.0 36.293 0.001 27.867 0.002
2051.0 36.317 0.001 27.834 0.002
2052.0 36.341 0.001 27.802 0.002
2053.0 36.364 0.001 27.770 0.002
2054.0 36.388 0.001 27.737 0.002
2055.0 36.412 0.001 27.705 0.002
2056.0 36.436 0.001 27.672 0.002
2057.0 36.459 0.001 27.640 0.003
2058.0 36.483 0.001 27.608 0.003
2059.0 36.507 0.001 27.576 0.003
2060.0 36.531 0.001 27.543 0.003
2061.0 36.554 0.002 27.511 0.003
2062.0 36.578 0.002 27.479 0.003
2063.0 36.602 0.002 27.447 0.003
2064.0 36.626 0.002 27.415 0.003
2065.0 36.650 0.002 27.383 0.003
2066.0 36.674 0.002 27.351 0.003
2067.0 36.697 0.002 27.319 0.003
2068.0 36.721 0.002 27.288 0.003
2069.0 36.745 0.002 27.256 0.003
2070.0 36.769 0.002 27.224 0.003
2071.0 36.793 0.002 27.192 0.003
2072.0 36.817 0.002 27.161 0.003
2073.0 36.841 0.002 27.129 0.004
2074.0 36.865 0.002 27.097 0.004
2075.0 36.889 0.002 27.066 0.004
2076.0 36.913 0.002 27.034 0.004
2077.0 36.937 0.002 27.003 0.004
2078.0 36.961 0.002 26.971 0.004
2079.0 36.985 0.002 26.940 0.004
2080.0 37.009 0.002 26.909 0.004
2081.0 37.033 0.002 26.877 0.004
2082.0 37.057 0.002 26.846 0.004
2083.0 37.081 0.002 26.815 0.004
2084.0 37.105 0.002 26.784 0.004
2085.0 37.129 0.002 26.753 0.004
2086.0 37.153 0.002 26.721 0.004
2087.0 37.177 0.002 26.690 0.004
2088.0 37.201 0.002 26.659 0.004
2089.0 37.225 0.002 26.628 0.004
2090.0 37.250 0.003 26.597 0.005
2091.0 37.274 0.003 26.567 0.005
2092.0 37.298 0.003 26.536 0.005
2093.0 37.322 0.003 26.505 0.005
2094.0 37.346 0.003 26.474 0.005
2095.0 37.370 0.003 26.443 0.005
2096.0 37.395 0.003 26.413 0.005
2097.0 37.419 0.003 26.382 0.005
2098.0 37.443 0.003 26.351 0.005
2099.0 37.467 0.003 26.321 0.005
2100.0 37.491 0.003 26.290 0.005
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
-------------------------------------------------------------------------------------------------
23469+2825 STF 3039 AB 1 35.94" 28.5° B2024.671 HWI 120/900 APO ASI678MM
-- Image of STF-3039-AB-taken with Equinox 120/900 APO --
wds_id : 23469+2825
discoverer_code : STF
discoverer_number : 3039
discoverer_components : AB
date_first : 1782
date_last : 2021
num_of_obs : 42
pa_first : 40
pa_last : 28
sep_first : 26.2
sep_last : 37.3
mag_primary : 7.41
mag_secondary : 9.39
spectral_type : M0
primary_proper_motion_RA : 3
primary_proper_motion_DEC : -23
secondary_proper_motion_RA : -3
secondary_proper_motion_DEC : 9
dm_number : +27 4619
notes : N
precise_coordinate : 234652.41+282511.1
WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
Click to expand/collapse the Gaia Input Data:
Star A
solution_id = 1636148068921376768
designation = Gaia DR3 2866862568110717312
source_id = 2866862568110717312
random_index = 242859063.0
ref_epoch = 2016.0
ra = 356.71840789899005
ra_error = 0.033842582
dec = 28.419587954656794
dec_error = 0.023056308
parallax = 2.616880028175702
parallax_error = 0.03922651
parallax_over_error = 66.71203
pm = 21.859703
pmra = 2.843443916307945
pmra_error = 0.04114648
pmdec = -21.67398002859879
pmdec_error = 0.026134036
ra_dec_corr = -0.015347916
ra_parallax_corr = 0.09056209
ra_pmra_corr = -0.2222522
ra_pmdec_corr = -0.09941607
dec_parallax_corr = -0.22620508
dec_pmra_corr = -0.15388307
dec_pmdec_corr = 0.35862225
parallax_pmra_corr = -0.041232362
parallax_pmdec_corr = -0.17690347
pmra_pmdec_corr = -0.13559714
astrometric_n_obs_al = 246
astrometric_n_obs_ac = 246
astrometric_n_good_obs_al = 244
astrometric_n_bad_obs_al = 2
astrometric_gof_al = -2.3934858
astrometric_chi2_al = 2315.0398
astrometric_excess_noise = 0.25040168
astrometric_excess_noise_sig = 75.65257
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.2408295
astrometric_matched_transits = 28
visibility_periods_used = 15
astrometric_sigma5d_max = 0.058033604
matched_transits = 31
new_matched_transits = 10
matched_transits_removed = 16
ipd_gof_harmonic_amplitude = 0.006634878
ipd_gof_harmonic_phase = 101.36737
ipd_frac_multi_peak = 6
ipd_frac_odd_win = 0
ruwe = 0.8912045
duplicated_source = false
phot_g_n_obs = 269
phot_g_mean_flux = 96577966.02296613
phot_g_mean_flux_error = 240585.94
phot_g_mean_flux_over_error = 401.42813
phot_g_mean_mag = 5.7251716
phot_bp_n_obs = 31
phot_bp_mean_flux = 13674478.606854592
phot_bp_mean_flux_error = 163960.02
phot_bp_mean_flux_over_error = 83.4013
phot_bp_mean_mag = 7.4987655
phot_rp_n_obs = 30
phot_rp_mean_flux = 132708825.47950993
phot_rp_mean_flux_error = 1142316.0
phot_rp_mean_flux_over_error = 116.17523
phot_rp_mean_mag = 4.440646
phot_bp_rp_excess_factor = 1.5157008
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 = 3.0581193
bp_g = 1.7735939
g_rp = 1.2845254
radial_velocity = -4.192078
radial_velocity_error = 0.41649523
rv_method_used = 1
rv_nb_transits = 16
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 14
rv_expected_sig_to_noise = 1382.2596
rv_chisq_pvalue = 0.0
rv_time_duration = 1008.06494
rv_amplitude_robust = 4.251442
rv_template_teff = 3700.0
rv_template_logg = 1.0
rv_template_fe_h = 0.0
rv_atm_param_origin = 440
vbroad = 9.725528
vbroad_error = 0.7313136
vbroad_nb_transits = 15
grvs_mag = 3.9313898
grvs_mag_error = 0.017500486
grvs_mag_nb_transits = 16
phot_variable_flag = VARIABLE
l = 106.11167665419693
b = -32.3346037949247
ecl_lon = 9.257841445719132
ecl_lat = 27.172981060207306
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 = 1.0442868e-13
classprob_dsc_combmod_galaxy = 5.21616e-13
classprob_dsc_combmod_star = 0.99976176
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 2866862602470454912
source_id = 2866862602470454912
random_index = 1447290851.0
ref_epoch = 2016.0
ra = 356.7238433919408
ra_error = 0.018759029
dec = 28.42821144410423
dec_error = 0.01529998
parallax = 3.2706226786626758
parallax_error = 0.022681812
parallax_over_error = 144.19583
pm = 9.899715
pmra = -4.330106144958545
pmra_error = 0.023639504
pmdec = 8.902501901469396
pmdec_error = 0.017588569
ra_dec_corr = -0.0042302487
ra_parallax_corr = 0.0065306653
ra_pmra_corr = 0.116579235
ra_pmdec_corr = -0.24076106
dec_parallax_corr = -0.21418434
dec_pmra_corr = -0.225986
dec_pmdec_corr = 0.11124446
parallax_pmra_corr = -0.10407154
parallax_pmdec_corr = 0.04463246
pmra_pmdec_corr = -0.09368733
astrometric_n_obs_al = 281
astrometric_n_obs_ac = 281
astrometric_n_good_obs_al = 281
astrometric_n_bad_obs_al = 0
astrometric_gof_al = 3.6693587
astrometric_chi2_al = 1030.784
astrometric_excess_noise = 0.14933291
astrometric_excess_noise_sig = 23.777317
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.6369398
astrometric_matched_transits = 32
visibility_periods_used = 17
astrometric_sigma5d_max = 0.03328395
matched_transits = 42
new_matched_transits = 12
matched_transits_removed = 1
ipd_gof_harmonic_amplitude = 0.011959436
ipd_gof_harmonic_phase = 163.77473
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.1589068
duplicated_source = false
phot_g_n_obs = 319
phot_g_mean_flux = 1702285.7590470726
phot_g_mean_flux_error = 304.8738
phot_g_mean_flux_over_error = 5583.5747
phot_g_mean_mag = 10.109786
phot_bp_n_obs = 37
phot_bp_mean_flux = 1057727.2424620304
phot_bp_mean_flux_error = 410.1876
phot_bp_mean_flux_over_error = 2578.6428
phot_bp_mean_mag = 10.277608
phot_rp_n_obs = 37
phot_rp_mean_flux = 941484.2796825649
phot_rp_mean_flux_error = 253.21698
phot_rp_mean_flux_over_error = 3718.093
phot_rp_mean_mag = 9.813363
phot_bp_rp_excess_factor = 1.1744276
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 = 0.46424484
bp_g = 0.16782188
g_rp = 0.29642296
radial_velocity = -14.015611
radial_velocity_error = 2.2885497
rv_method_used = 1
rv_nb_transits = 17
rv_nb_deblended_transits = 4
rv_visibility_periods_used = 11
rv_expected_sig_to_noise = 89.11253
rv_renormalised_gof = 0.48702377
rv_chisq_pvalue = 0.23312607
rv_time_duration = 883.50525
rv_amplitude_robust = 14.664389
rv_template_teff = 7250.0
rv_template_logg = 4.0
rv_template_fe_h = -0.75
rv_atm_param_origin = 555
vbroad = 80.02082
vbroad_error = 5.0427165
vbroad_nb_transits = 7
grvs_mag = 9.666295
grvs_mag_error = 0.083722726
grvs_mag_nb_transits = 9
phot_variable_flag = NOT_AVAILABLE
l = 106.12007393914213
b = -32.327757647328646
ecl_lon = 9.266977001406007
ecl_lat = 27.178563704432772
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 = 1.0613455e-13
classprob_dsc_combmod_galaxy = 5.301367e-13
classprob_dsc_combmod_star = 0.9995929
teff_gspphot = 7641.745
teff_gspphot_lower = 7614.5503
teff_gspphot_upper = 7674.171
logg_gspphot = 4.0834
logg_gspphot_lower = 4.0691
logg_gspphot_upper = 4.1125
mh_gspphot = -1.0338
mh_gspphot_lower = -1.296
mh_gspphot_upper = -1.0047
distance_gspphot = 294.4982
distance_gspphot_lower = 275.7672
distance_gspphot_upper = 299.9624
azero_gspphot = 0.3177
azero_gspphot_lower = 0.3042
azero_gspphot_upper = 0.3295
ag_gspphot = 0.2875
ag_gspphot_lower = 0.2752
ag_gspphot_upper = 0.2984
ebpminrp_gspphot = 0.1543
ebpminrp_gspphot_lower = 0.1477
ebpminrp_gspphot_upper = 0.1602
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 22:37:09 +0100
www.stella-vega.de
