Gaia Source ID - Star A : 1935556428178828672 Simbad
Gaia Source ID - Star B : 1935556423880874368 Simbad
Observation Epoch : J 2024.680 / 2024-09-06
Angular Separation : 30.190" ± 0.5821 mas
Position Angle : 0.64 ± 0.00070 degreesStar A/B Epoch : J 2016.000 / J 2016.000
Angular Separation : 29.854" ± 0.0538 mas
Position Angle : 0.15 ± 0.00006 degrees
LB of Projected Separation (AU): 1644.97 AU
Spatial Separation (pc) : 166.39 ± 0.66 pc
Spatial Separation (ly) : 542.69 ± 2.15 ly
Proper Motion Angular Difference : 160.03 ± 0.79 degrees
Total Proper Motion Difference : 7.26 ± 0.06 mas/yr
Tangential Velocity Difference : 14.73 ± 0.07 km/s
Aladin Lite Sky Atlas
DSS color
DSS blue
2MASS
AllWISE
Gaia Source ID : 1935556428178828672 Simbad
Parallax over error : 239.863 : very good
RUWE : 1.240 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 5.929 : G > 3 mag, photometry reliable
Excess noise : 0.632 : poor fit, model deviation significant
Significance : 663.822 : possible double star, motion, mismatch
BP-RP excess factor : 1.431 : photometry inconsistent
Visibility periods : 25 : high, indicates well observed star
IPD multi-peak frac : 64% : mulitple peaks detected (possible double)
IDP GoF harmonic amp: 0.117 : slight indication of structure
Gaia Source ID : 1935556423880874368 Simbad
Parallax over error : 358.548 : very good
RUWE : 0.970 : good astrometric fit (single star)
Duplicated source : false : single source
G magnitude : 10.758 : G > 3 mag, photometry reliable
Excess noise : 0.079 : poor fit, model deviation significant
Significance : 11.393 : possible double star, motion, mismatch
BP-RP excess factor : 1.197 : photometry consistent
Visibility periods : 27 : high, indicates well observed star
IPD multi-peak frac : 0% : single peak detected
IDP GoF harmonic amp: 0.011 : unobtrusive (single star source)
Spatial separation :
166.39 pc, with an uncertainty range of [ 165.73, 167.05] 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:
88.90 %
Relative Total Proper Motion difference:
34.45 %
Relative Tangential Velocity difference:
198.97 %
Estimated CPM Probability:
1.15 %
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 25.611 0.008 352.423 0.010
1901.0 25.645 0.008 352.500 0.010
1902.0 25.679 0.008 352.577 0.010
1903.0 25.713 0.008 352.654 0.010
1904.0 25.748 0.007 352.731 0.010
1905.0 25.782 0.007 352.807 0.010
1906.0 25.817 0.007 352.884 0.010
1907.0 25.851 0.007 352.960 0.010
1908.0 25.886 0.007 353.036 0.010
1909.0 25.921 0.007 353.111 0.009
1910.0 25.955 0.007 353.187 0.009
1911.0 25.990 0.007 353.262 0.009
1912.0 26.025 0.007 353.337 0.009
1913.0 26.060 0.007 353.412 0.009
1914.0 26.094 0.007 353.487 0.009
1915.0 26.129 0.007 353.562 0.009
1916.0 26.164 0.007 353.636 0.009
1917.0 26.199 0.007 353.710 0.009
1918.0 26.234 0.007 353.784 0.009
1919.0 26.269 0.006 353.858 0.008
1920.0 26.305 0.006 353.931 0.008
1921.0 26.340 0.006 354.005 0.008
1922.0 26.375 0.006 354.078 0.008
1923.0 26.410 0.006 354.151 0.008
1924.0 26.445 0.006 354.223 0.008
1925.0 26.481 0.006 354.296 0.008
1926.0 26.516 0.006 354.368 0.008
1927.0 26.552 0.006 354.440 0.008
1928.0 26.587 0.006 354.512 0.008
1929.0 26.623 0.006 354.584 0.007
1930.0 26.658 0.006 354.656 0.007
1931.0 26.694 0.006 354.727 0.007
1932.0 26.729 0.006 354.798 0.007
1933.0 26.765 0.006 354.869 0.007
1934.0 26.801 0.005 354.940 0.007
1935.0 26.836 0.005 355.011 0.007
1936.0 26.872 0.005 355.081 0.007
1937.0 26.908 0.005 355.152 0.007
1938.0 26.944 0.005 355.222 0.007
1939.0 26.980 0.005 355.292 0.006
1940.0 27.016 0.005 355.361 0.006
1941.0 27.052 0.005 355.431 0.006
1942.0 27.088 0.005 355.500 0.006
1943.0 27.124 0.005 355.569 0.006
1944.0 27.160 0.005 355.638 0.006
1945.0 27.196 0.005 355.707 0.006
1946.0 27.232 0.005 355.776 0.006
1947.0 27.269 0.005 355.844 0.006
1948.0 27.305 0.005 355.912 0.006
1949.0 27.341 0.004 355.980 0.006
1950.0 27.377 0.004 356.048 0.005
1951.0 27.414 0.004 356.116 0.005
1952.0 27.450 0.004 356.183 0.005
1953.0 27.487 0.004 356.251 0.005
1954.0 27.523 0.004 356.318 0.005
1955.0 27.560 0.004 356.385 0.005
1956.0 27.596 0.004 356.452 0.005
1957.0 27.633 0.004 356.518 0.005
1958.0 27.670 0.004 356.585 0.005
1959.0 27.706 0.004 356.651 0.005
1960.0 27.743 0.004 356.717 0.005
1961.0 27.780 0.004 356.783 0.004
1962.0 27.817 0.004 356.849 0.004
1963.0 27.853 0.004 356.914 0.004
1964.0 27.890 0.003 356.980 0.004
1965.0 27.927 0.003 357.045 0.004
1966.0 27.964 0.003 357.110 0.004
1967.0 28.001 0.003 357.175 0.004
1968.0 28.038 0.003 357.240 0.004
1969.0 28.075 0.003 357.304 0.004
1970.0 28.112 0.003 357.369 0.004
1971.0 28.149 0.003 357.433 0.004
1972.0 28.186 0.003 357.497 0.004
1973.0 28.224 0.003 357.561 0.003
1974.0 28.261 0.003 357.624 0.003
1975.0 28.298 0.003 357.688 0.003
1976.0 28.335 0.003 357.751 0.003
1977.0 28.373 0.003 357.815 0.003
1978.0 28.410 0.003 357.878 0.003
1979.0 28.448 0.002 357.940 0.003
1980.0 28.485 0.002 358.003 0.003
1981.0 28.522 0.002 358.066 0.003
1982.0 28.560 0.002 358.128 0.003
1983.0 28.597 0.002 358.190 0.003
1984.0 28.635 0.002 358.252 0.003
1985.0 28.673 0.002 358.314 0.002
1986.0 28.710 0.002 358.376 0.002
1987.0 28.748 0.002 358.437 0.002
1988.0 28.786 0.002 358.499 0.002
1989.0 28.823 0.002 358.560 0.002
1990.0 28.861 0.002 358.621 0.002
1991.0 28.899 0.002 358.682 0.002
1992.0 28.937 0.002 358.743 0.002
1993.0 28.975 0.002 358.803 0.002
1994.0 29.012 0.001 358.864 0.002
1995.0 29.050 0.001 358.924 0.002
1996.0 29.088 0.001 358.984 0.002
1997.0 29.126 0.001 359.044 0.001
1998.0 29.164 0.001 359.104 0.001
1999.0 29.202 0.001 359.164 0.001
2000.0 29.241 0.001 359.223 0.001
2001.0 29.279 0.001 359.283 0.001
2002.0 29.317 0.001 359.342 0.001
2003.0 29.355 0.001 359.401 0.001
2004.0 29.393 0.001 359.460 0.001
2005.0 29.431 0.001 359.518 0.001
2006.0 29.470 0.001 359.577 0.001
2007.0 29.508 0.001 359.635 0.001
2008.0 29.546 0.001 359.694 0.001
2009.0 29.585 0.000 359.752 0.001
2010.0 29.623 0.000 359.810 0.000
2011.0 29.662 0.000 359.868 0.000
2012.0 29.700 0.000 359.925 0.000
2013.0 29.738 0.000 359.983 0.000
2014.0 29.777 0.000 0.040 0.000
2015.0 29.816 0.000 0.097 0.000
2016.0 29.854 0.000 0.154 0.000
2017.0 29.893 0.000 0.211 0.000
2018.0 29.931 0.000 0.268 0.000
2019.0 29.970 0.000 0.325 0.000
2020.0 30.009 0.000 0.381 0.000
2021.0 30.047 0.000 0.438 0.000
2022.0 30.086 0.000 0.494 0.000
2023.0 30.125 0.000 0.550 0.001
2024.0 30.164 0.001 0.606 0.001
2025.0 30.203 0.001 0.662 0.001
2026.0 30.241 0.001 0.717 0.001
2027.0 30.280 0.001 0.773 0.001
2028.0 30.319 0.001 0.828 0.001
2029.0 30.358 0.001 0.883 0.001
2030.0 30.397 0.001 0.938 0.001
2031.0 30.436 0.001 0.993 0.001
2032.0 30.475 0.001 1.048 0.001
2033.0 30.514 0.001 1.103 0.001
2034.0 30.553 0.001 1.157 0.001
2035.0 30.593 0.001 1.211 0.001
2036.0 30.632 0.001 1.266 0.001
2037.0 30.671 0.001 1.320 0.002
2038.0 30.710 0.001 1.374 0.002
2039.0 30.749 0.002 1.428 0.002
2040.0 30.789 0.002 1.481 0.002
2041.0 30.828 0.002 1.535 0.002
2042.0 30.867 0.002 1.588 0.002
2043.0 30.906 0.002 1.641 0.002
2044.0 30.946 0.002 1.694 0.002
2045.0 30.985 0.002 1.747 0.002
2046.0 31.025 0.002 1.800 0.002
2047.0 31.064 0.002 1.853 0.002
2048.0 31.104 0.002 1.906 0.002
2049.0 31.143 0.002 1.958 0.002
2050.0 31.183 0.002 2.010 0.002
2051.0 31.222 0.002 2.063 0.003
2052.0 31.262 0.002 2.115 0.003
2053.0 31.301 0.002 2.167 0.003
2054.0 31.341 0.003 2.218 0.003
2055.0 31.381 0.003 2.270 0.003
2056.0 31.420 0.003 2.322 0.003
2057.0 31.460 0.003 2.373 0.003
2058.0 31.500 0.003 2.424 0.003
2059.0 31.539 0.003 2.475 0.003
2060.0 31.579 0.003 2.526 0.003
2061.0 31.619 0.003 2.577 0.003
2062.0 31.659 0.003 2.628 0.003
2063.0 31.699 0.003 2.679 0.003
2064.0 31.738 0.003 2.729 0.003
2065.0 31.778 0.003 2.779 0.003
2066.0 31.818 0.003 2.830 0.004
2067.0 31.858 0.003 2.880 0.004
2068.0 31.898 0.003 2.930 0.004
2069.0 31.938 0.004 2.980 0.004
2070.0 31.978 0.004 3.029 0.004
2071.0 32.018 0.004 3.079 0.004
2072.0 32.058 0.004 3.129 0.004
2073.0 32.098 0.004 3.178 0.004
2074.0 32.139 0.004 3.227 0.004
2075.0 32.179 0.004 3.276 0.004
2076.0 32.219 0.004 3.325 0.004
2077.0 32.259 0.004 3.374 0.004
2078.0 32.299 0.004 3.423 0.004
2079.0 32.339 0.004 3.472 0.004
2080.0 32.380 0.004 3.520 0.004
2081.0 32.420 0.004 3.569 0.005
2082.0 32.460 0.004 3.617 0.005
2083.0 32.501 0.004 3.665 0.005
2084.0 32.541 0.005 3.713 0.005
2085.0 32.581 0.005 3.761 0.005
2086.0 32.622 0.005 3.809 0.005
2087.0 32.662 0.005 3.856 0.005
2088.0 32.703 0.005 3.904 0.005
2089.0 32.743 0.005 3.951 0.005
2090.0 32.784 0.005 3.999 0.005
2091.0 32.824 0.005 4.046 0.005
2092.0 32.865 0.005 4.093 0.005
2093.0 32.905 0.005 4.140 0.005
2094.0 32.946 0.005 4.187 0.005
2095.0 32.986 0.005 4.234 0.005
2096.0 33.027 0.005 4.280 0.006
2097.0 33.068 0.005 4.327 0.006
2098.0 33.108 0.005 4.373 0.006
2099.0 33.149 0.006 4.420 0.006
2100.0 33.190 0.006 4.466 0.006
WDS ID Discovr Comp # Sep PA Epoch Obs Telescope Camera Note
-------------------------------------------------------------------------------------------------
22537+4445 HJ 1828 AB,C 1 30.27" 0.89° B2024.685 HWI 120/900 APO ASI678MM
-- Image of HJ-1828-AB-C-taken with Equinox 120/900 APO --
wds_id : 22537+4445
discoverer_code : HJ
discoverer_number : 1828
discoverer_components : AB,C
date_first : 1876
date_last : 2021
num_of_obs : 25
pa_first : 354
pa_last : 3
sep_first : 26.4
sep_last : 29.5
mag_primary : 5.81
mag_secondary : 10.7
spectral_type : A3m
primary_proper_motion_RA : -3
primary_proper_motion_DEC : -16
secondary_proper_motion_RA : 17
secondary_proper_motion_DEC : 14
dm_number :
notes : N
precise_coordinate : 225340.16+444457.1
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 1935556428178828672
source_id = 1935556428178828672
random_index = 564832611.0
ref_epoch = 2016.0
ra = 343.41725050808543
ra_error = 0.043566532
dec = 44.74906101116935
dec_error = 0.053075884
parallax = 18.14870656466003
parallax_error = 0.07566265
parallax_over_error = 239.86348
pm = 28.347593
pmra = -13.846139175200022
pmra_error = 0.05481223
pmdec = -24.73601552005004
pmdec_error = 0.065848984
ra_dec_corr = -0.35941014
ra_parallax_corr = 0.23056863
ra_pmra_corr = -0.35013944
ra_pmdec_corr = 0.13316303
dec_parallax_corr = 0.081951946
dec_pmra_corr = 0.100472026
dec_pmdec_corr = -0.18202367
parallax_pmra_corr = -0.29091004
parallax_pmdec_corr = 0.031962436
pmra_pmdec_corr = -0.2987861
astrometric_n_obs_al = 540
astrometric_n_obs_ac = 540
astrometric_n_good_obs_al = 480
astrometric_n_bad_obs_al = 60
astrometric_gof_al = 7.2161193
astrometric_chi2_al = 24240.1
astrometric_excess_noise = 0.6315964
astrometric_excess_noise_sig = 663.82214
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.6902599
pseudocolour_error = 0.012064855
ra_pseudocolour_corr = 0.0012930112
dec_pseudocolour_corr = 0.10602032
parallax_pseudocolour_corr = 0.14103235
pmra_pseudocolour_corr = -0.15385191
pmdec_pseudocolour_corr = 0.03794055
astrometric_matched_transits = 56
visibility_periods_used = 25
astrometric_sigma5d_max = 0.0990877
matched_transits = 91
new_matched_transits = 91
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.11713257
ipd_gof_harmonic_phase = 172.55643
ipd_frac_multi_peak = 64
ipd_frac_odd_win = 0
ruwe = 1.2425419
duplicated_source = false
phot_g_n_obs = 549
phot_g_mean_flux = 80024234.35992388
phot_g_mean_flux_error = 51060.29
phot_g_mean_flux_over_error = 1567.2499
phot_g_mean_mag = 5.929313
phot_bp_n_obs = 64
phot_bp_mean_flux = 62663888.68828109
phot_bp_mean_flux_error = 63472.113
phot_bp_mean_flux_over_error = 987.2665
phot_bp_mean_mag = 5.845999
phot_rp_n_obs = 59
phot_rp_mean_flux = 51856506.71508165
phot_rp_mean_flux_error = 70863.195
phot_rp_mean_flux_over_error = 731.7833
phot_rp_mean_mag = 5.4608874
phot_bp_rp_excess_factor = 1.4310714
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 1
phot_proc_mode = 0
bp_rp = 0.38511133
bp_g = -0.08331442
g_rp = 0.46842575
phot_variable_flag = NOT_AVAILABLE
l = 101.91394276418367
b = -13.263073799730906
ecl_lon = 7.868833987674685
ecl_lat = 46.59674433478931
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 = 6.467682e-08
classprob_dsc_combmod_galaxy = 2.114558e-09
classprob_dsc_combmod_star = 0.99989295
Star B
solution_id = 1636148068921376768
designation = Gaia DR3 1935556423880874368
source_id = 1935556423880874368
random_index = 387994325.0
ref_epoch = 2016.0
ra = 343.4172819890925
ra_error = 0.0076660034
dec = 44.7573537912175
dec_error = 0.008816623
parallax = 4.5148846189467005
parallax_error = 0.012592144
parallax_over_error = 358.54773
pm = 21.083601
pmra = 15.962463028604754
pmra_error = 0.009396627
pmdec = 13.773815623922612
pmdec_error = 0.01108426
ra_dec_corr = -0.24041058
ra_parallax_corr = 0.110448405
ra_pmra_corr = -0.3292338
ra_pmdec_corr = -0.035287715
dec_parallax_corr = -0.07289926
dec_pmra_corr = -0.0016359687
dec_pmdec_corr = -0.030486083
parallax_pmra_corr = -0.16682921
parallax_pmdec_corr = 0.024225945
pmra_pmdec_corr = -0.16818927
astrometric_n_obs_al = 574
astrometric_n_obs_ac = 574
astrometric_n_good_obs_al = 558
astrometric_n_bad_obs_al = 16
astrometric_gof_al = -1.0524014
astrometric_chi2_al = 1106.1525
astrometric_excess_noise = 0.07898023
astrometric_excess_noise_sig = 11.392733
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.5724059
astrometric_matched_transits = 65
visibility_periods_used = 27
astrometric_sigma5d_max = 0.015809229
matched_transits = 81
new_matched_transits = 26
matched_transits_removed = 1
ipd_gof_harmonic_amplitude = 0.0114267655
ipd_gof_harmonic_phase = 151.24228
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.96792626
duplicated_source = false
phot_g_n_obs = 632
phot_g_mean_flux = 937311.2840672096
phot_g_mean_flux_error = 129.17659
phot_g_mean_flux_over_error = 7256.046
phot_g_mean_mag = 10.757657
phot_bp_n_obs = 70
phot_bp_mean_flux = 519234.7429276344
phot_bp_mean_flux_error = 164.391
phot_bp_mean_flux_over_error = 3158.535
phot_bp_mean_mag = 11.050133
phot_rp_n_obs = 67
phot_rp_mean_flux = 602947.9907542781
phot_rp_mean_flux_error = 117.67455
phot_rp_mean_flux_over_error = 5123.8604
phot_rp_mean_mag = 10.297195
phot_bp_rp_excess_factor = 1.197236
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 = 0.7529373
bp_g = 0.2924757
g_rp = 0.46046162
radial_velocity = -34.93765
radial_velocity_error = 0.2772457
rv_method_used = 1
rv_nb_transits = 40
rv_nb_deblended_transits = 8
rv_visibility_periods_used = 21
rv_expected_sig_to_noise = 103.50191
rv_renormalised_gof = 0.48690662
rv_chisq_pvalue = 0.2578261
rv_time_duration = 946.9026
rv_amplitude_robust = 6.6391983
rv_template_teff = 6000.0
rv_template_logg = 4.0
rv_template_fe_h = -0.25
rv_atm_param_origin = 444
grvs_mag = 10.09613
grvs_mag_error = 0.027961686
grvs_mag_nb_transits = 28
phot_variable_flag = NOT_AVAILABLE
l = 101.91779256415155
b = -13.255675866901234
ecl_lon = 7.875557890035705
ecl_lat = 46.60363108195026
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 = 1.0355536e-13
classprob_dsc_combmod_galaxy = 5.1725383e-13
classprob_dsc_combmod_star = 0.99984825
teff_gspphot = 6132.233
teff_gspphot_lower = 6123.469
teff_gspphot_upper = 6140.9346
logg_gspphot = 4.2642
logg_gspphot_lower = 4.262
logg_gspphot_upper = 4.2666
mh_gspphot = -0.3748
mh_gspphot_lower = -0.3831
mh_gspphot_upper = -0.3661
distance_gspphot = 220.5178
distance_gspphot_lower = 219.8876
distance_gspphot_upper = 221.1745
azero_gspphot = 0.183
azero_gspphot_lower = 0.1781
azero_gspphot_upper = 0.1876
ag_gspphot = 0.1564
ag_gspphot_lower = 0.1521
ag_gspphot_upper = 0.1604
ebpminrp_gspphot = 0.0846
ebpminrp_gspphot_lower = 0.0823
ebpminrp_gspphot_upper = 0.0868
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 22:24:49 +0100
www.stella-vega.de
