Double Star Calculator - Results


Discoverer & Number:   STF 2906   -> DSCALC Archive 
Gaia Source ID - Star A          : 1907679753963908608    Simbad
Gaia Source ID - Star B          : 1907679753963908352    Simbad

Observation Epoch                : J 2024.667  /  2024-09-01
Angular Separation               :      4.289" ±   0.4711 mas
Position Angle                   :       0.72  ±  0.00450 degrees

Star A/B Epoch                   : J 2016.000  /   J 2016.000
Angular Separation               :      4.295" ±   0.0387 mas
Position Angle                   :       0.72  ±  0.00027 degrees
  LB of Projected Separation (AU):    2138.71             AU
Spatial Separation     (pc)      :      30.86  ±    15.02 pc
  Spatial Separation   (ly)      :     100.64  ±    48.99 ly
Proper Motion Angular Difference :       1.98  ±     5.57 degrees
Total Proper Motion Difference   :       0.76  ±     0.05 mas/yr
Tangential Velocity Difference   :       2.73  ±     0.44 km/s

Aladin Lite Sky Atlas



Star A
 
Gaia Source ID                   : 1907679753963908608  Simbad

Epoch                            : J 2016.000
Right Ascension (RA)             :     22h 26m 45.55s
Declination (Dec)                :     37° 26' 37.25"
Distance (pc)                    :     497.91  ±  12.56 pc
Distance (ly)                    :    1623.96  ±  40.98 ly
Magnitude (Gaia G-band)          :       6.47           mag
Absolute Magnitude               :      -2.02  ±   0.13 mag
Spectral Type (color index)      :          O
Luminosity (solar luminosities)  :     473.39  +58.33/−51.93  L☉
Mass estimation (solar masses)   :       5.81                 M☉
RUWE                             :       0.94
Position Angle of Proper Motion  :     196.77  ±   4.92 degrees
Total Proper Motion              :       5.71  ±   0.05 mas/yr
  Total Proper Motion (Gaia)     :       5.71           mas/yr
Tangential Velocity              :      13.47  ±   0.36 km/s
Star A - Double Star Quality Metrics
Parallax over error :     39.631 : very good
RUWE                :      0.940 : good astrometric fit (single star)
Duplicated source   :      false : single source
G magnitude         :      6.468 : G > 3 mag, photometry reliable
Excess noise        :      0.397 : poor fit, model deviation significant
  Significance      :    254.427 :   possible double star, motion, mismatch
BP-RP excess factor :      1.161 : photometry consistent
Visibility periods  :         22 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.005 : unobtrusive (single star source)

Star B
 
Gaia Source ID                   : 1907679753963908352  Simbad

Epoch                            : J 2016.000
Right Ascension (RA)             :     22h 26m 45.56s
Declination (Dec)                :     37° 26' 41.55"
Distance (parsecs)               :     528.77  ±   8.23 pc
Distance (lightyears)            :    1724.60  ±  26.84 ly
Magnitude (Gaia G-band)          :       9.95           mag
Absolute Magnitude               :       1.33  ±   0.08 mag
Spectral Type (color index)      :          B
Luminosity (solar luminosities)  :      21.63  +1.61/−1.50    L☉
Mass estimation (solar masses)   :       2.61                 M☉
RUWE                             :       1.14
Position Angle of Proper Motion  :     194.79  ±   2.61 degrees
Total Proper Motion              :       6.46  ±   0.03 mas/yr
  Total Proper Motion (Gaia)     :       6.46           mas/yr
Tangential Velocity              :      16.20  ±   0.26 km/s
Radial Velocity (Gaia)           :     -17.48  ±   6.41 km/s
Space Velocity                   :      23.83  ±   4.70 km/s

Star B - Double Star Quality Metrics
Parallax over error :     64.253 : very good
RUWE                :      1.140 : good astrometric fit (single star)
Duplicated source   :      false : single source
G magnitude         :      9.949 : G > 3 mag, photometry reliable
Excess noise        :      0.223 : poor fit, model deviation significant
  Significance      :     67.262 :   possible double star, motion, mismatch
BP-RP excess factor :      1.225 : photometry consistent
Visibility periods  :         20 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.012 : unobtrusive (single star source)

Double Star plausibility checks

Check separation:
Spatial separation :   30.86 pc, with an uncertainty range of [ 15.84, 45.87] 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

Check proper motion:

Relative Proper Motion Angular difference:   1.10 %
Relative Total Proper Motion difference:   13.25 %
Relative Tangential Velocity difference:   20.27 %
Estimated CPM Probability:   80.18 %
CPM-Based Evidence factor:   0.643

Physical Binding Evidence:
Combined Physical Binding Evidence factor:   0.026

Check RUWE parameters:
RUWE probability for a binary system (Star A):   Zero
RUWE probability for a binary system (Star B):   Zero

Separation and position angle as a function of Julian Epoch

-- 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      4.386    0.006       0.709    0.059
1901.0      4.386    0.006       0.709    0.059
1902.0      4.385    0.006       0.709    0.058
1903.0      4.384    0.006       0.709    0.058
1904.0      4.383    0.006       0.710    0.057
1905.0      4.382    0.006       0.710    0.057
1906.0      4.382    0.006       0.710    0.056
1907.0      4.381    0.006       0.710    0.056
1908.0      4.380    0.006       0.710    0.055
1909.0      4.379    0.006       0.710    0.055
1910.0      4.379    0.006       0.710    0.054
1911.0      4.378    0.006       0.710    0.054
1912.0      4.377    0.006       0.710    0.053
1913.0      4.376    0.006       0.710    0.053
1914.0      4.375    0.006       0.710    0.052
1915.0      4.375    0.005       0.710    0.052
1916.0      4.374    0.005       0.711    0.051
1917.0      4.373    0.005       0.711    0.051
1918.0      4.372    0.005       0.711    0.050
1919.0      4.371    0.005       0.711    0.050
1920.0      4.371    0.005       0.711    0.049
1921.0      4.370    0.005       0.711    0.049
1922.0      4.369    0.005       0.711    0.048
1923.0      4.368    0.005       0.711    0.048
1924.0      4.368    0.005       0.711    0.047
1925.0      4.367    0.005       0.711    0.047
1926.0      4.366    0.005       0.711    0.046
1927.0      4.365    0.005       0.712    0.046
1928.0      4.364    0.005       0.712    0.045
1929.0      4.364    0.005       0.712    0.045
1930.0      4.363    0.005       0.712    0.044
1931.0      4.362    0.005       0.712    0.044
1932.0      4.361    0.005       0.712    0.043
1933.0      4.360    0.004       0.712    0.043
1934.0      4.360    0.004       0.712    0.042
1935.0      4.359    0.004       0.712    0.042
1936.0      4.358    0.004       0.712    0.041
1937.0      4.357    0.004       0.712    0.041
1938.0      4.357    0.004       0.713    0.040
1939.0      4.356    0.004       0.713    0.040
1940.0      4.355    0.004       0.713    0.039
1941.0      4.354    0.004       0.713    0.039
1942.0      4.353    0.004       0.713    0.038
1943.0      4.353    0.004       0.713    0.038
1944.0      4.352    0.004       0.713    0.037
1945.0      4.351    0.004       0.713    0.037
1946.0      4.350    0.004       0.713    0.036
1947.0      4.350    0.004       0.713    0.036
1948.0      4.349    0.004       0.713    0.035
1949.0      4.348    0.004       0.713    0.035
1950.0      4.347    0.004       0.714    0.034
1951.0      4.346    0.004       0.714    0.034
1952.0      4.346    0.003       0.714    0.033
1953.0      4.345    0.003       0.714    0.033
1954.0      4.344    0.003       0.714    0.032
1955.0      4.343    0.003       0.714    0.032
1956.0      4.342    0.003       0.714    0.031
1957.0      4.342    0.003       0.714    0.030
1958.0      4.341    0.003       0.714    0.030
1959.0      4.340    0.003       0.714    0.029
1960.0      4.339    0.003       0.714    0.029
1961.0      4.339    0.003       0.715    0.028
1962.0      4.338    0.003       0.715    0.028
1963.0      4.337    0.003       0.715    0.027
1964.0      4.336    0.003       0.715    0.027
1965.0      4.335    0.003       0.715    0.026
1966.0      4.335    0.003       0.715    0.026
1967.0      4.334    0.003       0.715    0.025
1968.0      4.333    0.003       0.715    0.025
1969.0      4.332    0.003       0.715    0.024
1970.0      4.331    0.002       0.715    0.024
1971.0      4.331    0.002       0.715    0.023
1972.0      4.330    0.002       0.716    0.023
1973.0      4.329    0.002       0.716    0.022
1974.0      4.328    0.002       0.716    0.022
1975.0      4.328    0.002       0.716    0.021
1976.0      4.327    0.002       0.716    0.021
1977.0      4.326    0.002       0.716    0.020
1978.0      4.325    0.002       0.716    0.020
1979.0      4.324    0.002       0.716    0.019
1980.0      4.324    0.002       0.716    0.019
1981.0      4.323    0.002       0.716    0.018
1982.0      4.322    0.002       0.716    0.018
1983.0      4.321    0.002       0.716    0.017
1984.0      4.320    0.002       0.717    0.017
1985.0      4.320    0.002       0.717    0.016
1986.0      4.319    0.002       0.717    0.016
1987.0      4.318    0.002       0.717    0.015
1988.0      4.317    0.002       0.717    0.015
1989.0      4.317    0.001       0.717    0.014
1990.0      4.316    0.001       0.717    0.014
1991.0      4.315    0.001       0.717    0.013
1992.0      4.314    0.001       0.717    0.012
1993.0      4.313    0.001       0.717    0.012
1994.0      4.313    0.001       0.717    0.011
1995.0      4.312    0.001       0.718    0.011
1996.0      4.311    0.001       0.718    0.010
1997.0      4.310    0.001       0.718    0.010
1998.0      4.310    0.001       0.718    0.009
1999.0      4.309    0.001       0.718    0.009
2000.0      4.308    0.001       0.718    0.008
2001.0      4.307    0.001       0.718    0.008
2002.0      4.306    0.001       0.718    0.007
2003.0      4.306    0.001       0.718    0.007
2004.0      4.305    0.001       0.718    0.006
2005.0      4.304    0.001       0.718    0.006
2006.0      4.303    0.001       0.719    0.005
2007.0      4.302    0.000       0.719    0.005
2008.0      4.302    0.000       0.719    0.004
2009.0      4.301    0.000       0.719    0.004
2010.0      4.300    0.000       0.719    0.003
2011.0      4.299    0.000       0.719    0.003
2012.0      4.299    0.000       0.719    0.002
2013.0      4.298    0.000       0.719    0.002
2014.0      4.297    0.000       0.719    0.001
2015.0      4.296    0.000       0.719    0.001
2016.0      4.295    0.000       0.719    0.000
2017.0      4.295    0.000       0.720    0.001
2018.0      4.294    0.000       0.720    0.001
2019.0      4.293    0.000       0.720    0.002
2020.0      4.292    0.000       0.720    0.002
2021.0      4.291    0.000       0.720    0.003
2022.0      4.291    0.000       0.720    0.003
2023.0      4.290    0.000       0.720    0.004
2024.0      4.289    0.000       0.720    0.004
2025.0      4.288    0.000       0.720    0.005
2026.0      4.288    0.001       0.720    0.005
2027.0      4.287    0.001       0.720    0.006
2028.0      4.286    0.001       0.721    0.006
2029.0      4.285    0.001       0.721    0.007
2030.0      4.284    0.001       0.721    0.007
2031.0      4.284    0.001       0.721    0.008
2032.0      4.283    0.001       0.721    0.008
2033.0      4.282    0.001       0.721    0.009
2034.0      4.281    0.001       0.721    0.009
2035.0      4.280    0.001       0.721    0.010
2036.0      4.280    0.001       0.721    0.010
2037.0      4.279    0.001       0.721    0.011
2038.0      4.278    0.001       0.721    0.012
2039.0      4.277    0.001       0.722    0.012
2040.0      4.277    0.001       0.722    0.013
2041.0      4.276    0.001       0.722    0.013
2042.0      4.275    0.001       0.722    0.014
2043.0      4.274    0.001       0.722    0.014
2044.0      4.273    0.002       0.722    0.015
2045.0      4.273    0.002       0.722    0.015
2046.0      4.272    0.002       0.722    0.016
2047.0      4.271    0.002       0.722    0.016
2048.0      4.270    0.002       0.722    0.017
2049.0      4.269    0.002       0.722    0.017
2050.0      4.269    0.002       0.723    0.018
2051.0      4.268    0.002       0.723    0.018
2052.0      4.267    0.002       0.723    0.019
2053.0      4.266    0.002       0.723    0.019
2054.0      4.266    0.002       0.723    0.020
2055.0      4.265    0.002       0.723    0.021
2056.0      4.264    0.002       0.723    0.021
2057.0      4.263    0.002       0.723    0.022
2058.0      4.262    0.002       0.723    0.022
2059.0      4.262    0.002       0.723    0.023
2060.0      4.261    0.002       0.723    0.023
2061.0      4.260    0.002       0.724    0.024
2062.0      4.259    0.002       0.724    0.024
2063.0      4.259    0.003       0.724    0.025
2064.0      4.258    0.003       0.724    0.025
2065.0      4.257    0.003       0.724    0.026
2066.0      4.256    0.003       0.724    0.026
2067.0      4.255    0.003       0.724    0.027
2068.0      4.255    0.003       0.724    0.027
2069.0      4.254    0.003       0.724    0.028
2070.0      4.253    0.003       0.724    0.028
2071.0      4.252    0.003       0.725    0.029
2072.0      4.251    0.003       0.725    0.030
2073.0      4.251    0.003       0.725    0.030
2074.0      4.250    0.003       0.725    0.031
2075.0      4.249    0.003       0.725    0.031
2076.0      4.248    0.003       0.725    0.032
2077.0      4.248    0.003       0.725    0.032
2078.0      4.247    0.003       0.725    0.033
2079.0      4.246    0.003       0.725    0.033
2080.0      4.245    0.003       0.725    0.034
2081.0      4.244    0.004       0.725    0.034
2082.0      4.244    0.004       0.726    0.035
2083.0      4.243    0.004       0.726    0.035
2084.0      4.242    0.004       0.726    0.036
2085.0      4.241    0.004       0.726    0.036
2086.0      4.240    0.004       0.726    0.037
2087.0      4.240    0.004       0.726    0.038
2088.0      4.239    0.004       0.726    0.038
2089.0      4.238    0.004       0.726    0.039
2090.0      4.237    0.004       0.726    0.039
2091.0      4.237    0.004       0.726    0.040
2092.0      4.236    0.004       0.726    0.040
2093.0      4.235    0.004       0.727    0.041
2094.0      4.234    0.004       0.727    0.041
2095.0      4.233    0.004       0.727    0.042
2096.0      4.233    0.004       0.727    0.042
2097.0      4.232    0.004       0.727    0.043
2098.0      4.231    0.004       0.727    0.043
2099.0      4.230    0.004       0.727    0.044
2100.0      4.229    0.005       0.727    0.045


Measurements for STF 2906

WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
22268+3727  STF 2906          1    4.21"    1.6°     B2024.671  HWI  120/900 APO   ASI678MM

-- Image of STF-2906-taken with Equinox 120/900 APO --


WDS record for STF 2906
wds_id                       : 22268+3727
discoverer_code              : STF
discoverer_number            : 2906
discoverer_components        : 
date_first                   : 1832
date_last                    : 2021
num_of_obs                   : 27
pa_first                     : 4
pa_last                      : 1
sep_first                    : 4.5
sep_last                     : 4.3
mag_primary                  : 6.46
mag_secondary                : 9.64
spectral_type                : B2V
primary_proper_motion_RA     : -1
primary_proper_motion_DEC    : -11
secondary_proper_motion_RA   : -1
secondary_proper_motion_DEC  : -5
dm_number                    : +36 4835
notes                        : 
precise_coordinate           : 222645.56+372637.3



Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A 
solution_id = 1636148068921376768
designation = Gaia DR3 1907679753963908608
source_id = 1907679753963908608
random_index = 1328463587.0
ref_epoch = 2016.0
ra = 336.68981213656195
ra_error = 0.020670345
dec = 37.44368130144255
dec_error = 0.03371907
parallax = 2.0083961430380004
parallax_error = 0.050677147
parallax_over_error = 39.631203
pm = 5.7060657
pmra = -1.6462364516295425
pmra_error = 0.04091452
pmdec = -5.463432375806757
pmdec_error = 0.04803886
ra_dec_corr = -0.029973745
ra_parallax_corr = 0.014813157
ra_pmra_corr = -0.20290731
ra_pmdec_corr = -0.037472203
dec_parallax_corr = 0.042596783
dec_pmra_corr = -0.083275385
dec_pmdec_corr = -0.08106339
parallax_pmra_corr = 0.12433105
parallax_pmdec_corr = -0.3701384
pmra_pmdec_corr = -0.20161162
astrometric_n_obs_al = 577
astrometric_n_obs_ac = 577
astrometric_n_good_obs_al = 574
astrometric_n_bad_obs_al = 3
astrometric_gof_al = -1.906278
astrometric_chi2_al = 9705.349
astrometric_excess_noise = 0.39666218
astrometric_excess_noise_sig = 254.42744
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.820906
astrometric_matched_transits = 65
visibility_periods_used = 22
astrometric_sigma5d_max = 0.07067453
matched_transits = 76
new_matched_transits = 18
matched_transits_removed = 13
ipd_gof_harmonic_amplitude = 0.0048293644
ipd_gof_harmonic_phase = 159.4517
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.9434523
duplicated_source = false
phot_g_n_obs = 638
phot_g_mean_flux = 48737511.67469256
phot_g_mean_flux_error = 14780.176
phot_g_mean_flux_over_error = 3297.492
phot_g_mean_mag = 6.4677086
phot_bp_n_obs = 68
phot_bp_mean_flux = 38235424.91757654
phot_bp_mean_flux_error = 36827.168
phot_bp_mean_flux_over_error = 1038.2396
phot_bp_mean_mag = 6.3823776
phot_rp_n_obs = 63
phot_rp_mean_flux = 18367475.60150785
phot_rp_mean_flux_error = 10313.82
phot_rp_mean_flux_over_error = 1780.8606
phot_rp_mean_mag = 6.587772
phot_bp_rp_excess_factor = 1.1613827
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 8
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 35
phot_proc_mode = 0
bp_rp = -0.20539427
bp_g = -0.08533096
g_rp = -0.120063305
phot_variable_flag = NOT_AVAILABLE
l = 93.58397197898303
b = -17.04934692265874
ecl_lon = 356.35824717164144
ecl_lat = 43.06149456874184
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 = 1.02235535e-13
classprob_dsc_combmod_galaxy = 5.106614e-13
classprob_dsc_combmod_star = 0.9999996
    Star B 
solution_id = 1636148068921376768
designation = Gaia DR3 1907679753963908352
source_id = 1907679753963908352
random_index = 428132043.0
ref_epoch = 2016.0
ra = 336.6898310074586
ra_error = 0.015439435
dec = 37.44487436932763
dec_error = 0.018948533
parallax = 1.8911971094145217
parallax_error = 0.029433671
parallax_over_error = 64.252846
pm = 6.461989
pmra = -1.6492675452605037
pmra_error = 0.02752767
pmdec = -6.247976937672579
pmdec_error = 0.02505625
ra_dec_corr = 0.0068507474
ra_parallax_corr = 0.06682724
ra_pmra_corr = -0.037212025
ra_pmdec_corr = -0.1704222
dec_parallax_corr = -0.12082762
dec_pmra_corr = -0.22164218
dec_pmdec_corr = 0.04658545
parallax_pmra_corr = -0.01687523
parallax_pmdec_corr = -0.33567104
pmra_pmdec_corr = -0.101582885
astrometric_n_obs_al = 486
astrometric_n_obs_ac = 486
astrometric_n_good_obs_al = 473
astrometric_n_bad_obs_al = 13
astrometric_gof_al = 4.2337494
astrometric_chi2_al = 3472.6614
astrometric_excess_noise = 0.22341852
astrometric_excess_noise_sig = 67.26226
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7521585
astrometric_matched_transits = 55
visibility_periods_used = 20
astrometric_sigma5d_max = 0.039183505
matched_transits = 68
new_matched_transits = 17
matched_transits_removed = 2
ipd_gof_harmonic_amplitude = 0.0118468115
ipd_gof_harmonic_phase = 164.8402
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.1407844
duplicated_source = false
phot_g_n_obs = 439
phot_g_mean_flux = 1974321.7207260577
phot_g_mean_flux_error = 734.64484
phot_g_mean_flux_over_error = 2687.4507
phot_g_mean_mag = 9.948822
phot_bp_n_obs = 19
phot_bp_mean_flux = 1530120.4130802336
phot_bp_mean_flux_error = 16005.526
phot_bp_mean_flux_over_error = 95.5995
phot_bp_mean_mag = 9.876728
phot_rp_n_obs = 18
phot_rp_mean_flux = 887818.1330013789
phot_rp_mean_flux_error = 4385.002
phot_rp_mean_flux_over_error = 202.46698
phot_rp_mean_mag = 9.877086
phot_bp_rp_excess_factor = 1.2246933
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 19
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 18
phot_proc_mode = 0
bp_rp = -0.00035762787
bp_g = -0.07209396
g_rp = 0.071736336
radial_velocity = -17.4777
radial_velocity_error = 6.409464
rv_method_used = 1
rv_nb_transits = 12
rv_nb_deblended_transits = 4
rv_visibility_periods_used = 7
rv_expected_sig_to_noise = 66.449646
rv_renormalised_gof = 2.138081
rv_chisq_pvalue = 0.13621703
rv_time_duration = 1014.2284
rv_amplitude_robust = 64.414444
rv_template_teff = 11000.0
rv_template_logg = 5.0
rv_template_fe_h = 0.0
rv_atm_param_origin = 555
grvs_mag = 9.765327
grvs_mag_error = 0.005318556
grvs_mag_nb_transits = 3
rvs_spec_sig_to_noise = 74.26571
phot_variable_flag = VARIABLE
l = 93.58467066668142
b = -17.048358270600502
ecl_lon = 356.3590814155617
ecl_lat = 43.06252030333219
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 = 1.07474644e-13
classprob_dsc_combmod_galaxy = 5.3683045e-13
classprob_dsc_combmod_star = 0.99947304



    Observation Date:  

Disclaimer
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.


Acknowledgements
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.


Report Information
Double Star Calculator:   Version 1.0 ($Rev: 1734 $)
Report created:   2025-12-29 22:36:41 +0100


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