Double Star Calculator - Results

Discoverer & Number:

STF 653 AC

Gaia Source ID - Star A          : 180702438220217344    Simbad
Gaia Source ID - Star B          : 180702438220219904    Simbad

Observation Epoch                : J 2024.070  /  2024-01-27
Angular Separation               :     14.168" ±   0.7998 mas
Position Angle                   :     224.41  ±  0.00320 degrees

Star A/B Epoch                   : J 2016.000  /   J 2016.000
Angular Separation               :     14.196" ±   0.0675 mas
Position Angle                   :     224.51  ±  0.00027 degrees
  LB of Projected Separation (AU):    1158.20             AU
Spatial Separation     (pc)      :       1.66  ±     0.83 pc
  Spatial Separation   (ly)      :       5.40  ±     2.70 ly
Proper Motion Angular Difference :       5.36  ±     0.69 degrees
Total Proper Motion Difference   :       3.91  ±     0.12 mas/yr
Tangential Velocity Difference   :       1.73  ±     0.12 km/s

Aladin Lite Sky Atlas

DSS color DSS blue 2MASS AllWISE

Star A

Gaia Source ID                   : 180702438220217344  Simbad

Epoch                            : J 2016.000
Right Ascension (RA)             :     05h 15m 24.36s
Declination (Dec)                :     32° 41' 15.56"
Distance (pc)                    :      83.25  ±   0.80 pc
Distance (ly)                    :     271.51  ±   2.60 ly
Magnitude (Gaia G-band)          :       4.95           mag
Absolute Magnitude               :       0.34  ±   0.05 mag
Spectral Type (color index)      :          A
Luminosity (solar luminosities)  :      53.75  +2.43/−2.32    L☉
Mass estimation (solar masses)   :       3.77                 M☉
RUWE                             :       1.11
Position Angle of Proper Motion  :     296.04  ±   0.66 degrees
Total Proper Motion              :      28.11  ±   0.12 mas/yr
  Total Proper Motion (Gaia)     :      28.11           mas/yr
Tangential Velocity              :      11.09  ±   0.12 km/s

Star A - Double Star Quality Metrics

Parallax over error :    104.333 : very good
RUWE                :      1.110 : good astrometric fit (single star)
Duplicated source   :      false : single source
G magnitude         :      4.946 : G > 3 mag, photometry reliable
Excess noise        :      0.617 : poor fit, model deviation significant
  Significance      :    759.001 :   possible double star, motion, mismatch
BP-RP excess factor :      1.169 : photometry consistent
Visibility periods  :         14 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.056 : slight indication of structure

Star B

Gaia Source ID                   : 180702438220219904  Simbad

Epoch                            : J 2016.000
Right Ascension (RA)             :     05h 15m 23.57s
Declination (Dec)                :     32° 41' 5.43"
Distance (parsecs)               :      81.59  ±   0.22 pc
Distance (lightyears)            :     266.11  ±   0.71 ly
Magnitude (Gaia G-band)          :       7.88           mag
Absolute Magnitude               :       3.32  ±   0.01 mag
Spectral Type (color index)      :          F
Luminosity (solar luminosities)  :       3.46  +0.04/−0.04    L☉
Mass estimation (solar masses)   :       1.56                 M☉
RUWE                             :       0.99
Position Angle of Proper Motion  :     301.40  ±   0.19 degrees
Total Proper Motion              :      24.19  ±   0.03 mas/yr
  Total Proper Motion (Gaia)     :      24.19           mas/yr
Tangential Velocity              :       9.36  ±   0.03 km/s

Star B - Double Star Quality Metrics

Parallax over error :    376.311 : very good
RUWE                :      0.990 : good astrometric fit (single star)
Duplicated source   :      false : single source
G magnitude         :      7.882 : G > 3 mag, photometry reliable
Excess noise        :      0.146 : poor fit, model deviation significant
  Significance      :     16.504 :   possible double star, motion, mismatch
BP-RP excess factor :      1.188 : photometry consistent
Visibility periods  :         16 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.033 : unobtrusive (single star source)

Double Star plausibility checks

Check separation:

Spatial separation :		341702.9 AU, with an uncertainty range of [ 171160.3, 512245.5] AU

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:		2.98 %

Relative Total Proper Motion difference:		16.18 %

Relative Tangential Velocity difference:		18.54 %

Estimated CPM Probability:		74.79 %

CPM-Based Evidence factor:		0.559

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     14.596    0.012     225.922    0.045
1901.0     14.593    0.011     225.911    0.044
1902.0     14.589    0.011     225.899    0.044
1903.0     14.586    0.011     225.887    0.043
1904.0     14.582    0.011     225.875    0.043
1905.0     14.579    0.011     225.863    0.043
1906.0     14.575    0.011     225.851    0.042
1907.0     14.572    0.011     225.839    0.042
1908.0     14.569    0.011     225.828    0.042
1909.0     14.565    0.011     225.816    0.041
1910.0     14.562    0.011     225.804    0.041
1911.0     14.558    0.010     225.792    0.040
1912.0     14.555    0.010     225.780    0.040
1913.0     14.551    0.010     225.768    0.040
1914.0     14.548    0.010     225.756    0.039
1915.0     14.544    0.010     225.744    0.039
1916.0     14.541    0.010     225.732    0.039
1917.0     14.537    0.010     225.720    0.038
1918.0     14.534    0.010     225.709    0.038
1919.0     14.530    0.010     225.697    0.037
1920.0     14.527    0.010     225.685    0.037
1921.0     14.523    0.009     225.673    0.037
1922.0     14.520    0.009     225.661    0.036
1923.0     14.516    0.009     225.649    0.036
1924.0     14.513    0.009     225.637    0.036
1925.0     14.509    0.009     225.625    0.035
1926.0     14.506    0.009     225.613    0.035
1927.0     14.502    0.009     225.601    0.034
1928.0     14.499    0.009     225.589    0.034
1929.0     14.495    0.009     225.577    0.034
1930.0     14.492    0.009     225.565    0.033
1931.0     14.488    0.008     225.553    0.033
1932.0     14.485    0.008     225.541    0.033
1933.0     14.481    0.008     225.529    0.032
1934.0     14.478    0.008     225.517    0.032
1935.0     14.475    0.008     225.505    0.031
1936.0     14.471    0.008     225.493    0.031
1937.0     14.468    0.008     225.481    0.031
1938.0     14.464    0.008     225.469    0.030
1939.0     14.461    0.008     225.457    0.030
1940.0     14.457    0.008     225.445    0.030
1941.0     14.454    0.007     225.433    0.029
1942.0     14.450    0.007     225.421    0.029
1943.0     14.447    0.007     225.409    0.028
1944.0     14.443    0.007     225.396    0.028
1945.0     14.440    0.007     225.384    0.028
1946.0     14.436    0.007     225.372    0.027
1947.0     14.433    0.007     225.360    0.027
1948.0     14.429    0.007     225.348    0.026
1949.0     14.426    0.007     225.336    0.026
1950.0     14.423    0.007     225.324    0.026
1951.0     14.419    0.006     225.312    0.025
1952.0     14.416    0.006     225.300    0.025
1953.0     14.412    0.006     225.287    0.025
1954.0     14.409    0.006     225.275    0.024
1955.0     14.405    0.006     225.263    0.024
1956.0     14.402    0.006     225.251    0.023
1957.0     14.398    0.006     225.239    0.023
1958.0     14.395    0.006     225.227    0.023
1959.0     14.391    0.006     225.215    0.022
1960.0     14.388    0.006     225.202    0.022
1961.0     14.385    0.005     225.190    0.021
1962.0     14.381    0.005     225.178    0.021
1963.0     14.378    0.005     225.166    0.021
1964.0     14.374    0.005     225.154    0.020
1965.0     14.371    0.005     225.142    0.020
1966.0     14.367    0.005     225.129    0.020
1967.0     14.364    0.005     225.117    0.019
1968.0     14.360    0.005     225.105    0.019
1969.0     14.357    0.005     225.093    0.018
1970.0     14.353    0.005     225.080    0.018
1971.0     14.350    0.004     225.068    0.018
1972.0     14.347    0.004     225.056    0.017
1973.0     14.343    0.004     225.044    0.017
1974.0     14.340    0.004     225.031    0.016
1975.0     14.336    0.004     225.019    0.016
1976.0     14.333    0.004     225.007    0.016
1977.0     14.329    0.004     224.995    0.015
1978.0     14.326    0.004     224.982    0.015
1979.0     14.322    0.004     224.970    0.015
1980.0     14.319    0.004     224.958    0.014
1981.0     14.316    0.003     224.946    0.014
1982.0     14.312    0.003     224.933    0.013
1983.0     14.309    0.003     224.921    0.013
1984.0     14.305    0.003     224.909    0.013
1985.0     14.302    0.003     224.896    0.012
1986.0     14.298    0.003     224.884    0.012
1987.0     14.295    0.003     224.872    0.011
1988.0     14.291    0.003     224.859    0.011
1989.0     14.288    0.003     224.847    0.011
1990.0     14.285    0.003     224.835    0.010
1991.0     14.281    0.002     224.822    0.010
1992.0     14.278    0.002     224.810    0.009
1993.0     14.274    0.002     224.798    0.009
1994.0     14.271    0.002     224.785    0.009
1995.0     14.267    0.002     224.773    0.008
1996.0     14.264    0.002     224.760    0.008
1997.0     14.261    0.002     224.748    0.007
1998.0     14.257    0.002     224.736    0.007
1999.0     14.254    0.002     224.723    0.007
2000.0     14.250    0.002     224.711    0.006
2001.0     14.247    0.001     224.698    0.006
2002.0     14.243    0.001     224.686    0.006
2003.0     14.240    0.001     224.674    0.005
2004.0     14.237    0.001     224.661    0.005
2005.0     14.233    0.001     224.649    0.004
2006.0     14.230    0.001     224.636    0.004
2007.0     14.226    0.001     224.624    0.004
2008.0     14.223    0.001     224.611    0.003
2009.0     14.219    0.001     224.599    0.003
2010.0     14.216    0.001     224.586    0.002
2011.0     14.213    0.000     224.574    0.002
2012.0     14.209    0.000     224.562    0.002
2013.0     14.206    0.000     224.549    0.001
2014.0     14.202    0.000     224.537    0.001
2015.0     14.199    0.000     224.524    0.000
2016.0     14.196    0.000     224.512    0.000
2017.0     14.192    0.000     224.499    0.000
2018.0     14.189    0.000     224.487    0.001
2019.0     14.185    0.000     224.474    0.001
2020.0     14.182    0.000     224.461    0.002
2021.0     14.178    0.000     224.449    0.002
2022.0     14.175    0.001     224.436    0.002
2023.0     14.172    0.001     224.424    0.003
2024.0     14.168    0.001     224.411    0.003
2025.0     14.165    0.001     224.399    0.004
2026.0     14.161    0.001     224.386    0.004
2027.0     14.158    0.001     224.374    0.004
2028.0     14.155    0.001     224.361    0.005
2029.0     14.151    0.001     224.348    0.005
2030.0     14.148    0.001     224.336    0.006
2031.0     14.144    0.001     224.323    0.006
2032.0     14.141    0.002     224.311    0.006
2033.0     14.137    0.002     224.298    0.007
2034.0     14.134    0.002     224.285    0.007
2035.0     14.131    0.002     224.273    0.008
2036.0     14.127    0.002     224.260    0.008
2037.0     14.124    0.002     224.248    0.008
2038.0     14.120    0.002     224.235    0.009
2039.0     14.117    0.002     224.222    0.009
2040.0     14.114    0.002     224.210    0.010
2041.0     14.110    0.002     224.197    0.010
2042.0     14.107    0.003     224.184    0.010
2043.0     14.103    0.003     224.172    0.011
2044.0     14.100    0.003     224.159    0.011
2045.0     14.097    0.003     224.146    0.012
2046.0     14.093    0.003     224.134    0.012
2047.0     14.090    0.003     224.121    0.012
2048.0     14.086    0.003     224.108    0.013
2049.0     14.083    0.003     224.096    0.013
2050.0     14.080    0.003     224.083    0.014
2051.0     14.076    0.003     224.070    0.014
2052.0     14.073    0.004     224.057    0.014
2053.0     14.069    0.004     224.045    0.015
2054.0     14.066    0.004     224.032    0.015
2055.0     14.063    0.004     224.019    0.016
2056.0     14.059    0.004     224.007    0.016
2057.0     14.056    0.004     223.994    0.016
2058.0     14.053    0.004     223.981    0.017
2059.0     14.049    0.004     223.968    0.017
2060.0     14.046    0.004     223.955    0.018
2061.0     14.042    0.004     223.943    0.018
2062.0     14.039    0.005     223.930    0.018
2063.0     14.036    0.005     223.917    0.019
2064.0     14.032    0.005     223.904    0.019
2065.0     14.029    0.005     223.892    0.020
2066.0     14.025    0.005     223.879    0.020
2067.0     14.022    0.005     223.866    0.021
2068.0     14.019    0.005     223.853    0.021
2069.0     14.015    0.005     223.840    0.021
2070.0     14.012    0.005     223.827    0.022
2071.0     14.009    0.005     223.815    0.022
2072.0     14.005    0.006     223.802    0.023
2073.0     14.002    0.006     223.789    0.023
2074.0     13.998    0.006     223.776    0.023
2075.0     13.995    0.006     223.763    0.024
2076.0     13.992    0.006     223.750    0.024
2077.0     13.988    0.006     223.737    0.025
2078.0     13.985    0.006     223.725    0.025
2079.0     13.982    0.006     223.712    0.025
2080.0     13.978    0.006     223.699    0.026
2081.0     13.975    0.006     223.686    0.026
2082.0     13.971    0.007     223.673    0.027
2083.0     13.968    0.007     223.660    0.027
2084.0     13.965    0.007     223.647    0.027
2085.0     13.961    0.007     223.634    0.028
2086.0     13.958    0.007     223.621    0.028
2087.0     13.955    0.007     223.608    0.029
2088.0     13.951    0.007     223.595    0.029
2089.0     13.948    0.007     223.582    0.030
2090.0     13.944    0.007     223.570    0.030
2091.0     13.941    0.007     223.557    0.030
2092.0     13.938    0.007     223.544    0.031
2093.0     13.934    0.008     223.531    0.031
2094.0     13.931    0.008     223.518    0.032
2095.0     13.928    0.008     223.505    0.032
2096.0     13.924    0.008     223.492    0.032
2097.0     13.921    0.008     223.479    0.033
2098.0     13.918    0.008     223.466    0.033
2099.0     13.914    0.008     223.453    0.034
2100.0     13.911    0.008     223.440    0.034

Measurements for STF 653 AC


WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
05154+3241  STF 653     AC    1    14.25"   224.2°   B2024.074  HWI  120/900 APO   ASI120MC

-- Image of STF-653-AC-taken with Equinox 120/900 APO --

WDS record for STF 653 AC

wds_id                       : 05154+3241
discoverer_code              : STF
discoverer_number            : 653
discoverer_components        : AC
date_first                   : 1780
date_last                    : 2019
num_of_obs                   : 102
pa_first                     : 232
pa_last                      : 225
sep_first                    : 16.1
sep_last                     : 14.3
mag_primary                  : 5.03
mag_secondary                : 7.33
spectral_type                : A9IV+F2V
primary_proper_motion_RA     : -27
primary_proper_motion_DEC    : 11
secondary_proper_motion_RA   : -14
secondary_proper_motion_DEC  : 19
dm_number                    : 
notes                        : NY
precise_coordinate           : 051524.39+324115.3

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
Y: Statistically different parallax: non-physical

Parsed GAIA Input Data

Click to expand/collapse the Gaia Input Data:

Star A

solution_id = 1636148068921376768
designation = Gaia DR3 180702438220217344
source_id = 180702438220217344
random_index = 1078744443.0
ref_epoch = 2016.0
ra = 78.8515091125468
ra_error = 0.09102844
dec = 32.68765475178911
dec_error = 0.049354833
parallax = 12.012574006458387
parallax_error = 0.115136385
parallax_over_error = 104.333435
pm = 28.109386
pmra = -25.25634579770649
pmra_error = 0.12070028
pmdec = 12.339150900411488
pmdec_error = 0.08727909
ra_dec_corr = -0.14092498
ra_parallax_corr = 0.050957575
ra_pmra_corr = -0.18563977
ra_pmdec_corr = 0.28733417
dec_parallax_corr = -0.2878981
dec_pmra_corr = 0.4019455
dec_pmdec_corr = -0.6588275
parallax_pmra_corr = -0.045370452
parallax_pmdec_corr = 0.54042065
pmra_pmdec_corr = -0.36079484
astrometric_n_obs_al = 379
astrometric_n_obs_ac = 379
astrometric_n_good_obs_al = 366
astrometric_n_bad_obs_al = 13
astrometric_gof_al = 3.02535
astrometric_chi2_al = 28842.162
astrometric_excess_noise = 0.61702365
astrometric_excess_noise_sig = 759.0014
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.6765624
astrometric_matched_transits = 43
visibility_periods_used = 14
astrometric_sigma5d_max = 0.18098964
matched_transits = 43
new_matched_transits = 28
matched_transits_removed = 12
ipd_gof_harmonic_amplitude = 0.056189388
ipd_gof_harmonic_phase = 66.05062
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.1137217
duplicated_source = false
phot_g_n_obs = 370
phot_g_mean_flux = 197976534.5474359
phot_g_mean_flux_error = 233012.06
phot_g_mean_flux_over_error = 849.6407
phot_g_mean_mag = 4.9458327
phot_bp_n_obs = 42
phot_bp_mean_flux = 128580735.8683203
phot_bp_mean_flux_error = 260307.03
phot_bp_mean_flux_over_error = 493.95798
phot_bp_mean_mag = 5.0656023
phot_rp_n_obs = 37
phot_rp_mean_flux = 102757715.83174202
phot_rp_mean_flux_error = 614383.1
phot_rp_mean_flux_over_error = 167.25348
phot_rp_mean_mag = 4.7183595
phot_bp_rp_excess_factor = 1.1685145
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 12
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 32
phot_proc_mode = 0
bp_rp = 0.34724283
bp_g = 0.11976957
g_rp = 0.22747326
phot_variable_flag = NOT_AVAILABLE
l = 173.2980137428991
b = -3.353621286699134
ecl_lon = 80.49991319060905
ecl_lat = 9.615300351865663
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 = 1.7239153e-13
classprob_dsc_combmod_galaxy = 8.61087e-13
classprob_dsc_combmod_star = 0.9930341

Star B

solution_id = 1636148068921376768
designation = Gaia DR3 180702438220219904
source_id = 180702438220219904
random_index = 1307523199.0
ref_epoch = 2016.0
ra = 78.8482246396245
ra_error = 0.029768156
dec = 32.684842780270195
dec_error = 0.016009282
parallax = 12.256480197124823
parallax_error = 0.032570053
parallax_over_error = 376.31134
pm = 24.194803
pmra = -20.651970361007496
pmra_error = 0.037333313
pmdec = 12.604944582060563
pmdec_error = 0.025337655
ra_dec_corr = -0.13793564
ra_parallax_corr = 0.18011245
ra_pmra_corr = -0.26655933
ra_pmdec_corr = 0.3330321
dec_parallax_corr = -0.16672708
dec_pmra_corr = 0.2705306
dec_pmdec_corr = -0.7042922
parallax_pmra_corr = 0.21933615
parallax_pmdec_corr = 0.36174038
pmra_pmdec_corr = -0.15032199
astrometric_n_obs_al = 414
astrometric_n_obs_ac = 414
astrometric_n_good_obs_al = 414
astrometric_n_bad_obs_al = 0
astrometric_gof_al = -0.30080757
astrometric_chi2_al = 1000.5179
astrometric_excess_noise = 0.14611848
astrometric_excess_noise_sig = 16.504404
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.6220965
astrometric_matched_transits = 47
visibility_periods_used = 16
astrometric_sigma5d_max = 0.053592227
matched_transits = 47
new_matched_transits = 32
matched_transits_removed = 1
ipd_gof_harmonic_amplitude = 0.033442628
ipd_gof_harmonic_phase = 64.796165
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.98868895
duplicated_source = false
phot_g_n_obs = 412
phot_g_mean_flux = 13250213.272117665
phot_g_mean_flux_error = 2960.9866
phot_g_mean_flux_over_error = 4474.932
phot_g_mean_mag = 7.8818097
phot_bp_n_obs = 39
phot_bp_mean_flux = 7998456.965094561
phot_bp_mean_flux_error = 3655.867
phot_bp_mean_flux_over_error = 2187.8413
phot_bp_mean_mag = 8.081027
phot_rp_n_obs = 36
phot_rp_mean_flux = 7739199.749552945
phot_rp_mean_flux_error = 2629.5906
phot_rp_mean_flux_over_error = 2943.1196
phot_rp_mean_mag = 7.5261555
phot_bp_rp_excess_factor = 1.1877285
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 31
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 27
phot_proc_mode = 0
bp_rp = 0.55487156
bp_g = 0.19921732
g_rp = 0.35565424
phot_variable_flag = NOT_AVAILABLE
l = 173.29870069653066
b = -3.357504391057359
ecl_lon = 80.49689550434456
ecl_lat = 9.612712619927581
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 = 1.3750302e-13
classprob_dsc_combmod_galaxy = 6.868207e-13
classprob_dsc_combmod_star = 0.99648726
teff_gspphot = 6573.865
teff_gspphot_lower = 6568.49
teff_gspphot_upper = 6641.025
logg_gspphot = 4.1682
logg_gspphot_lower = 4.1578
logg_gspphot_upper = 4.2195
mh_gspphot = -0.3851
mh_gspphot_lower = -0.4309
mh_gspphot_upper = -0.2362
distance_gspphot = 81.2231
distance_gspphot_lower = 80.5344
distance_gspphot_upper = 81.6551
azero_gspphot = 0.0033
azero_gspphot_lower = 0.0005
azero_gspphot_upper = 0.0414
ag_gspphot = 0.0029
ag_gspphot_lower = 0.0004
ag_gspphot_upper = 0.0363
ebpminrp_gspphot = 0.0016
ebpminrp_gspphot_lower = 0.0002
ebpminrp_gspphot_upper = 0.0196
libname_gspphot = MARCS

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 22:38:43 +0100