Gaia Source ID - Star A : 1374695306328813568 Simbad
Gaia Source ID - Star B : 1374695306328813696 Simbad
Observation Epoch : J 2025.521 / 2025-07-10
Angular Separation : 6.353" ± 0.9085 mas
Position Angle : 306.27 ± 0.00900 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 6.344" ± 0.0679 mas
Position Angle : 305.95 ± 0.00066 degrees
LB of Projected Separation (AU): 987.29 AU
Spatial Separation (ly) : 1.56 ± 8.27 ly
Spatial Separation (AU) : 98489.42 ± 522947.22 AU
Proper Motion Angular Difference : 10.08 ± 1.91 degrees
Total Proper Motion Difference : 2.66 ± 0.10 mas/yr
Tangential Velocity Difference : 1.93 ± 0.22 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 1374695306328813568 Simbad
Parallax over error : 66.951 : very good
RUWE : 1.110 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 4.985 : G > 3 mag, photometry reliable
Excess noise : 0.802 : poor fit, model deviation significant
Significance : 1018.665 : possible double star, motion, mismatch
BP-RP excess factor : 1.146 : photometry consistent
Visibility periods : 20 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.129 : slight indication of structure
Gaia Source ID : 1374695306328813696 Simbad
Parallax over error : 154.139 : very good
RUWE : 0.900 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 5.975 : G > 3 mag, photometry reliable
Excess noise : 0.358 : poor fit, model deviation significant
Significance : 196.307 : possible double star, motion, mismatch
BP-RP excess factor : 1.162 : photometry consistent
Visibility periods : 23 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.026 : unobtrusive (single star source)
Spatial separation :
98489.4 AU, with an uncertainty range of [ 987.3 (P), 621436.6] AU
Probability for a physical pair:
Close to or zero (Nominal) / Very High (at lower bound of uncertainty)
Separation-Based Evidence factor:
0.525 (Nominal) / Flag: normal
Relative Proper Motion Angular difference:
5.60 %
Relative Total Proper Motion difference:
18.31 %
Relative Tangential Velocity difference:
17.95 %
Estimated CPM Probability:
68.92 %
CPM-Based Evidence factor:
0.475
Combined Physical Binding Evidence factor:
0.5
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 6.259 0.011 301.959 0.113
1901.0 6.259 0.011 301.994 0.112
1902.0 6.260 0.010 302.029 0.111
1903.0 6.260 0.010 302.064 0.110
1904.0 6.261 0.010 302.098 0.109
1905.0 6.262 0.010 302.133 0.108
1906.0 6.262 0.010 302.168 0.107
1907.0 6.263 0.010 302.203 0.106
1908.0 6.264 0.010 302.237 0.105
1909.0 6.264 0.010 302.272 0.104
1910.0 6.265 0.010 302.307 0.103
1911.0 6.265 0.010 302.342 0.102
1912.0 6.266 0.010 302.376 0.101
1913.0 6.267 0.010 302.411 0.100
1914.0 6.267 0.009 302.446 0.099
1915.0 6.268 0.009 302.481 0.098
1916.0 6.269 0.009 302.515 0.097
1917.0 6.269 0.009 302.550 0.096
1918.0 6.270 0.009 302.585 0.095
1919.0 6.271 0.009 302.619 0.094
1920.0 6.271 0.009 302.654 0.093
1921.0 6.272 0.009 302.689 0.092
1922.0 6.272 0.009 302.723 0.091
1923.0 6.273 0.009 302.758 0.090
1924.0 6.274 0.009 302.793 0.089
1925.0 6.274 0.008 302.827 0.088
1926.0 6.275 0.008 302.862 0.087
1927.0 6.276 0.008 302.896 0.086
1928.0 6.276 0.008 302.931 0.085
1929.0 6.277 0.008 302.966 0.084
1930.0 6.278 0.008 303.000 0.083
1931.0 6.278 0.008 303.035 0.082
1932.0 6.279 0.008 303.069 0.081
1933.0 6.280 0.008 303.104 0.080
1934.0 6.281 0.008 303.139 0.079
1935.0 6.281 0.008 303.173 0.078
1936.0 6.282 0.007 303.208 0.077
1937.0 6.283 0.007 303.242 0.076
1938.0 6.283 0.007 303.277 0.075
1939.0 6.284 0.007 303.311 0.074
1940.0 6.285 0.007 303.346 0.073
1941.0 6.285 0.007 303.380 0.072
1942.0 6.286 0.007 303.415 0.071
1943.0 6.287 0.007 303.449 0.070
1944.0 6.287 0.007 303.484 0.069
1945.0 6.288 0.007 303.518 0.068
1946.0 6.289 0.007 303.553 0.067
1947.0 6.290 0.006 303.587 0.066
1948.0 6.290 0.006 303.622 0.065
1949.0 6.291 0.006 303.656 0.064
1950.0 6.292 0.006 303.691 0.063
1951.0 6.292 0.006 303.725 0.063
1952.0 6.293 0.006 303.759 0.062
1953.0 6.294 0.006 303.794 0.061
1954.0 6.295 0.006 303.828 0.060
1955.0 6.295 0.006 303.863 0.059
1956.0 6.296 0.006 303.897 0.058
1957.0 6.297 0.006 303.931 0.057
1958.0 6.298 0.005 303.966 0.056
1959.0 6.298 0.005 304.000 0.055
1960.0 6.299 0.005 304.035 0.054
1961.0 6.300 0.005 304.069 0.053
1962.0 6.301 0.005 304.103 0.052
1963.0 6.301 0.005 304.138 0.051
1964.0 6.302 0.005 304.172 0.050
1965.0 6.303 0.005 304.206 0.049
1966.0 6.304 0.005 304.241 0.048
1967.0 6.304 0.005 304.275 0.047
1968.0 6.305 0.004 304.309 0.046
1969.0 6.306 0.004 304.343 0.045
1970.0 6.307 0.004 304.378 0.044
1971.0 6.307 0.004 304.412 0.043
1972.0 6.308 0.004 304.446 0.042
1973.0 6.309 0.004 304.480 0.041
1974.0 6.310 0.004 304.515 0.040
1975.0 6.310 0.004 304.549 0.039
1976.0 6.311 0.004 304.583 0.038
1977.0 6.312 0.004 304.617 0.037
1978.0 6.313 0.004 304.652 0.036
1979.0 6.314 0.003 304.686 0.035
1980.0 6.314 0.003 304.720 0.034
1981.0 6.315 0.003 304.754 0.033
1982.0 6.316 0.003 304.788 0.032
1983.0 6.317 0.003 304.823 0.031
1984.0 6.318 0.003 304.857 0.030
1985.0 6.318 0.003 304.891 0.030
1986.0 6.319 0.003 304.925 0.029
1987.0 6.320 0.003 304.959 0.028
1988.0 6.321 0.003 304.993 0.027
1989.0 6.322 0.003 305.027 0.026
1990.0 6.322 0.002 305.062 0.025
1991.0 6.323 0.002 305.096 0.024
1992.0 6.324 0.002 305.130 0.023
1993.0 6.325 0.002 305.164 0.022
1994.0 6.326 0.002 305.198 0.021
1995.0 6.326 0.002 305.232 0.020
1996.0 6.327 0.002 305.266 0.019
1997.0 6.328 0.002 305.300 0.018
1998.0 6.329 0.002 305.334 0.017
1999.0 6.330 0.002 305.368 0.016
2000.0 6.331 0.002 305.402 0.015
2001.0 6.331 0.001 305.436 0.014
2002.0 6.332 0.001 305.470 0.013
2003.0 6.333 0.001 305.504 0.012
2004.0 6.334 0.001 305.538 0.011
2005.0 6.335 0.001 305.572 0.010
2006.0 6.336 0.001 305.606 0.009
2007.0 6.336 0.001 305.640 0.009
2008.0 6.337 0.001 305.674 0.008
2009.0 6.338 0.001 305.708 0.007
2010.0 6.339 0.001 305.742 0.006
2011.0 6.340 0.000 305.776 0.005
2012.0 6.341 0.000 305.810 0.004
2013.0 6.342 0.000 305.844 0.003
2014.0 6.342 0.000 305.877 0.002
2015.0 6.343 0.000 305.911 0.001
2016.0 6.344 0.000 305.945 0.001
2017.0 6.345 0.000 305.979 0.001
2018.0 6.346 0.000 306.013 0.002
2019.0 6.347 0.000 306.047 0.003
2020.0 6.348 0.000 306.081 0.004
2021.0 6.349 0.000 306.114 0.005
2022.0 6.349 0.001 306.148 0.006
2023.0 6.350 0.001 306.182 0.007
2024.0 6.351 0.001 306.216 0.008
2025.0 6.352 0.001 306.250 0.008
2026.0 6.353 0.001 306.283 0.009
2027.0 6.354 0.001 306.317 0.010
2028.0 6.355 0.001 306.351 0.011
2029.0 6.356 0.001 306.385 0.012
2030.0 6.357 0.001 306.419 0.013
2031.0 6.357 0.001 306.452 0.014
2032.0 6.358 0.002 306.486 0.015
2033.0 6.359 0.002 306.520 0.016
2034.0 6.360 0.002 306.553 0.017
2035.0 6.361 0.002 306.587 0.018
2036.0 6.362 0.002 306.621 0.019
2037.0 6.363 0.002 306.654 0.020
2038.0 6.364 0.002 306.688 0.021
2039.0 6.365 0.002 306.722 0.022
2040.0 6.366 0.002 306.755 0.022
2041.0 6.367 0.002 306.789 0.023
2042.0 6.368 0.002 306.823 0.024
2043.0 6.368 0.003 306.856 0.025
2044.0 6.369 0.003 306.890 0.026
2045.0 6.370 0.003 306.924 0.027
2046.0 6.371 0.003 306.957 0.028
2047.0 6.372 0.003 306.991 0.029
2048.0 6.373 0.003 307.024 0.030
2049.0 6.374 0.003 307.058 0.031
2050.0 6.375 0.003 307.091 0.032
2051.0 6.376 0.003 307.125 0.033
2052.0 6.377 0.003 307.158 0.034
2053.0 6.378 0.004 307.192 0.034
2054.0 6.379 0.004 307.225 0.035
2055.0 6.380 0.004 307.259 0.036
2056.0 6.381 0.004 307.292 0.037
2057.0 6.382 0.004 307.326 0.038
2058.0 6.383 0.004 307.359 0.039
2059.0 6.384 0.004 307.393 0.040
2060.0 6.385 0.004 307.426 0.041
2061.0 6.386 0.004 307.460 0.042
2062.0 6.386 0.004 307.493 0.043
2063.0 6.387 0.005 307.527 0.044
2064.0 6.388 0.005 307.560 0.045
2065.0 6.389 0.005 307.593 0.045
2066.0 6.390 0.005 307.627 0.046
2067.0 6.391 0.005 307.660 0.047
2068.0 6.392 0.005 307.694 0.048
2069.0 6.393 0.005 307.727 0.049
2070.0 6.394 0.005 307.760 0.050
2071.0 6.395 0.005 307.794 0.051
2072.0 6.396 0.005 307.827 0.052
2073.0 6.397 0.005 307.860 0.053
2074.0 6.398 0.006 307.894 0.054
2075.0 6.399 0.006 307.927 0.054
2076.0 6.400 0.006 307.960 0.055
2077.0 6.401 0.006 307.993 0.056
2078.0 6.402 0.006 308.027 0.057
2079.0 6.403 0.006 308.060 0.058
2080.0 6.404 0.006 308.093 0.059
2081.0 6.405 0.006 308.126 0.060
2082.0 6.406 0.006 308.160 0.061
2083.0 6.407 0.006 308.193 0.062
2084.0 6.408 0.007 308.226 0.063
2085.0 6.409 0.007 308.259 0.063
2086.0 6.410 0.007 308.292 0.064
2087.0 6.411 0.007 308.326 0.065
2088.0 6.412 0.007 308.359 0.066
2089.0 6.413 0.007 308.392 0.067
2090.0 6.414 0.007 308.425 0.068
2091.0 6.416 0.007 308.458 0.069
2092.0 6.417 0.007 308.491 0.070
2093.0 6.418 0.007 308.524 0.071
2094.0 6.419 0.008 308.557 0.072
2095.0 6.420 0.008 308.591 0.072
2096.0 6.421 0.008 308.624 0.073
2097.0 6.422 0.008 308.657 0.074
2098.0 6.423 0.008 308.690 0.075
2099.0 6.424 0.008 308.723 0.076
2100.0 6.425 0.008 308.756 0.077
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
-------------------------------------------------------------------------------------------------
15394+3638 STF 1965 1 6.32" CAL B2025.468 HWI 120/900 APO ASI678MM
-- Image of STF-1965-taken with Equinox 120/900 APO --
wds_id : 15394+3638
discoverer_code : STF
discoverer_number : 1965
discoverer_components :
date_first : 1779
date_last : 2024
num_of_obs : 346
pa_first : 296
pa_last : 306
sep_first : 5.5
sep_last : 6.3
mag_primary : 4.96
mag_secondary : 5.91
spectral_type : B7V+B9V
primary_proper_motion_RA : -17
primary_proper_motion_DEC : -4
secondary_proper_motion_RA : -15
secondary_proper_motion_DEC : -7
dm_number : +37 2665
notes : N
precise_coordinate : 153922.68+363809.0
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 1374695306328813568
source_id = 1374695306328813568
random_index = 1712389563.0
ref_epoch = 2016.0
ra = 234.84438427599244
ra_error = 0.066066846
dec = 36.63577788094199
dec_error = 0.076981604
parallax = 6.425871677276062
parallax_error = 0.09597933
parallax_over_error = 66.95058
pm = 17.212988
pmra = -15.50989053913835
pmra_error = 0.09057239
pmdec = -7.465267958752845
pmdec_error = 0.11207384
ra_dec_corr = 0.14198038
ra_parallax_corr = -0.0957413
ra_pmra_corr = 0.0026587103
ra_pmdec_corr = -0.05059084
dec_parallax_corr = -0.13419163
dec_pmra_corr = -0.10870716
dec_pmdec_corr = -0.28724864
parallax_pmra_corr = 0.031407572
parallax_pmdec_corr = 0.15192577
pmra_pmdec_corr = 0.36957684
astrometric_n_obs_al = 291
astrometric_n_obs_ac = 291
astrometric_n_good_obs_al = 284
astrometric_n_bad_obs_al = 7
astrometric_gof_al = 2.4970794
astrometric_chi2_al = 28337.814
astrometric_excess_noise = 0.8023428
astrometric_excess_noise_sig = 1018.665
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7994769
astrometric_matched_transits = 33
visibility_periods_used = 20
astrometric_sigma5d_max = 0.1696144
matched_transits = 35
new_matched_transits = 13
matched_transits_removed = 17
ipd_gof_harmonic_amplitude = 0.129032
ipd_gof_harmonic_phase = 56.89235
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.106315
duplicated_source = false
phot_g_n_obs = 282
phot_g_mean_flux = 190874544.36699966
phot_g_mean_flux_error = 155717.17
phot_g_mean_flux_over_error = 1225.7771
phot_g_mean_mag = 4.985497
phot_bp_n_obs = 31
phot_bp_mean_flux = 144816408.9045126
phot_bp_mean_flux_error = 126028.69
phot_bp_mean_flux_over_error = 1149.075
phot_bp_mean_mag = 4.9364977
phot_rp_n_obs = 29
phot_rp_mean_flux = 73849350.75429793
phot_rp_mean_flux_error = 127334.59
phot_rp_mean_flux_over_error = 579.963
phot_rp_mean_mag = 5.0770288
phot_bp_rp_excess_factor = 1.1455994
phot_bp_n_contaminated_transits = 1
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = -0.14053106
bp_g = -0.04899931
g_rp = -0.09153175
phot_variable_flag = NOT_AVAILABLE
l = 58.69775758503363
b = 53.412971106414275
ecl_lon = 218.2746216329549
ecl_lat = 53.945341133030574
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 = 1.02173065e-13
classprob_dsc_combmod_galaxy = 5.1034936e-13
classprob_dsc_combmod_star = 0.9999997
teff_gspphot = 12157.055
teff_gspphot_lower = 12119.086
teff_gspphot_upper = 12191.367
logg_gspphot = 3.7614
logg_gspphot_lower = 3.752
logg_gspphot_upper = 3.772
mh_gspphot = 0.2344
mh_gspphot_lower = 0.1828
mh_gspphot_upper = 0.2943
distance_gspphot = 157.8719
distance_gspphot_lower = 155.528
distance_gspphot_upper = 159.7918
azero_gspphot = 0.0164
azero_gspphot_lower = 0.0139
azero_gspphot_upper = 0.0187
ag_gspphot = 0.0161
ag_gspphot_lower = 0.0137
ag_gspphot_upper = 0.0184
ebpminrp_gspphot = 0.0086
ebpminrp_gspphot_lower = 0.0073
ebpminrp_gspphot_upper = 0.0099
libname_gspphot = A
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 1374695306328813696
source_id = 1374695306328813696
random_index = 1361289303.0
ref_epoch = 2016.0
ra = 234.84260630488228
ra_error = 0.027581114
dec = 36.63681234775629
dec_error = 0.03409098
parallax = 6.406216533139849
parallax_error = 0.04156142
parallax_over_error = 154.13853
pm = 14.548928
pmra = -14.011124047737166
pmra_error = 0.034096584
pmdec = -3.9191460598859673
pmdec_error = 0.045929357
ra_dec_corr = 0.21245071
ra_parallax_corr = 0.055816416
ra_pmra_corr = -0.004346729
ra_pmdec_corr = -0.17882033
dec_parallax_corr = -0.10687147
dec_pmra_corr = -0.16146812
dec_pmdec_corr = -0.2608535
parallax_pmra_corr = -0.06822226
parallax_pmdec_corr = 0.12108215
pmra_pmdec_corr = 0.18591534
astrometric_n_obs_al = 335
astrometric_n_obs_ac = 335
astrometric_n_good_obs_al = 333
astrometric_n_bad_obs_al = 2
astrometric_gof_al = -2.5070593
astrometric_chi2_al = 5923.0923
astrometric_excess_noise = 0.3580076
astrometric_excess_noise_sig = 196.30666
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.8067333
astrometric_matched_transits = 38
visibility_periods_used = 23
astrometric_sigma5d_max = 0.06594717
matched_transits = 40
new_matched_transits = 13
matched_transits_removed = 9
ipd_gof_harmonic_amplitude = 0.026071375
ipd_gof_harmonic_phase = 27.882484
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.9027481
duplicated_source = false
phot_g_n_obs = 346
phot_g_mean_flux = 76696102.66159394
phot_g_mean_flux_error = 57421.12
phot_g_mean_flux_over_error = 1335.6776
phot_g_mean_mag = 5.975434
phot_bp_n_obs = 37
phot_bp_mean_flux = 59333456.87887561
phot_bp_mean_flux_error = 131639.81
phot_bp_mean_flux_over_error = 450.72577
phot_bp_mean_mag = 5.905293
phot_rp_n_obs = 35
phot_rp_mean_flux = 29804924.68612642
phot_rp_mean_flux_error = 101467.17
phot_rp_mean_flux_over_error = 293.7396
phot_rp_mean_mag = 6.0621753
phot_bp_rp_excess_factor = 1.1622283
phot_bp_n_contaminated_transits = 5
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 5
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = -0.15688229
bp_g = -0.07014084
g_rp = -0.08674145
phot_variable_flag = VARIABLE
l = 58.6996070876435
b = 53.41434603409791
ecl_lon = 218.2717046156608
ecl_lat = 53.94573882346988
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 = 1.02199086e-13
classprob_dsc_combmod_galaxy = 5.104793e-13
classprob_dsc_combmod_star = 0.99999964
teff_gspphot = 13291.975
teff_gspphot_lower = 13217.913
teff_gspphot_upper = 13349.776
logg_gspphot = 4.0429
logg_gspphot_lower = 4.0272
logg_gspphot_upper = 4.0568
mh_gspphot = -0.9949
mh_gspphot_lower = -1.3641
mh_gspphot_upper = -0.8058
distance_gspphot = 157.2414
distance_gspphot_lower = 156.0184
distance_gspphot_upper = 158.4815
azero_gspphot = 0.0018
azero_gspphot_lower = 0.0006
azero_gspphot_upper = 0.0033
ag_gspphot = 0.0017
ag_gspphot_lower = 0.0006
ag_gspphot_upper = 0.0033
ebpminrp_gspphot = 0.0009
ebpminrp_gspphot_lower = 0.0003
ebpminrp_gspphot_upper = 0.0018
libname_gspphot = A
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 22:32:49 +0100
www.stella-vega.de
