Coord 2000 | 21148+3803 | Discov num | JOD 20 | Comp | Fa,Fb | Coord arcsec 2000 | 21 14 46.86 +38 01 13.7 | ||||
Date first | 2008 | Date last | 2018 | Obs | 4 | ||||||
Pa first | 18 | Pa last | 349.2 | P.A. Now (θ) | 349.2° | ||||||
Sep first | 0.4 | Sep last | 0.912 | Sep. Now (ρ) | 0.912" | ||||||
Mag pri | 12.20 | Mag sec | 13.80 | delta mag (ΔM) | 1.6 | Spectral class | M2.5 (red) | ||||
Pri motion ra | +165 | Sec motion ra | |||||||||
Pri motion dec | +436 | Sec motion dec | |||||||||
Notes | N (See Notes) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | Tau Cyg | 71121 | 21 14 47 +38 02 43 | AGC 13 AB | 2017 | 358 | 190 | 1.1 | 3.83 | 6.57 | 2.74 | Y | |
Show | 71121 | 21 14 47 +38 02 43 | AGC 13 AC | 2012 | 11 | 211 | 73.0 | 3.83 | 12.20 | 8.37 | |||
Show | 71121 | 21 14 47 +38 02 43 | AGC 13 AB,D | 2004 | 15 | 208 | 205.4 | 3.83 | 9.94 | 6.11 | |||
Show | 71121 | 21 14 47 +38 02 43 | AGC 13 AE | 2012 | 6 | 257 | 86.9 | 3.83 | 12.40 | 8.57 | |||
Show | 71121 | 21 14 47 +38 02 43 | AGC 13 AF | 2012 | 37 | 184 | 89.5 | 3.83 | 11.95 | 8.12 | |||
Show | 71121 | 21 14 47 +38 02 43 | DAL 38 AG | 2007 | 4 | 109 | 120.9 | 3.83 | 12.50 | 8.67 | |||
Show | 71121 | 21 14 47 +38 02 43 | LEP 100 AI | 2002 | 2 | 77 | 534.5 | 3.83 | 16.02 | 12.19 | |||
Show | 71121 | 21 14 47 +38 02 43 | FYM 110 AJ | 2012 | 3 | 127 | 49.7 | 3.83 | 14.00 | 10.17 | |||
Show | 71121 | 21 14 47 +38 02 43 | FYM 110 AK | 2012 | 3 | 316 | 99.0 | 3.83 | 14.40 | 10.57 | |||
Show | 71121 | 21 14 47 +38 02 43 | FYM 110 AL | 2012 | 2 | 290 | 32.8 | 3.83 | 14.90 | 11.07 | |||
Show | 21 14 57 +38 02 09 | DAL 38 GH | 2015 | 7 | 108 | 8.6 | 12.50 | 13.20 | 0.70 | ||||
Show | 21 14 47 +38 01 14 | JOD 20 Fa,Fb | 2018 | 4 | 349 | 0.9 | 12.20 | 13.80 | 1.60 | <=== |
Constellation | Cygnus | Gaia DR2 | 1964791549015851648 |
discov_num | notes | refcode |
AGC 13 | tau Cyg = 65 Cyg.A is a Delta Scuti-type variable. | |
Spectral types and masses of components assigned by ten Brummelaar et | ||
al., based on adaptive optics observations. | TtB2000 | |
Identification of the ascending node is probable although small | ||
variations of non-orbital origin superimpose on the RV. A is a Delta | ||
Scuti-type variable. A faint star listed as component F is physical; | ||
linear formula given by Heintz. | ||
See Baize & Petit (1989) catalog of doubles with variable component. | Baz1989d | |
AC and AB,D: Optical pair, based on study of relative motion of the | ||
components using the method of apparent motion parameters. | Kiy2008 | |
AB: The Soderhjelm (1999) orbit predicts a separation of 0.734", but | Sod1999 | |
the magnitude difference (published value 2.7mag) may have been too | ||
great. | Hrt2009 | |
Calculated mass sum is 2.63 +/- 0.12 Msun. There is some indication of | ||
a substellar companion orbiting one of the two stars, but this is | ||
uncertain. This solution uses only a single Keplerian model. | Mut2010b | |
AC: Rectilinear solution by Hurowitz et al. (2014). | USN2014b |
refcode | metd | author | reference |
Baz1989d | - | Baize, P. & Petit, M. | 1989A&AS...77..497B |
Baz1989d | A&AS 77, 497, 1989 | ||
Hrt2009 | Su j | Hartkopf, W.I. & Mason, B.D. | 2009AJ....138..813H |
Hrt2009 | +orb | AJ 138, 813, 2009 | |
Kiy2008 | - | Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. | 2008SvAL...32..405K |
Kiy2008 | SvAL 34, 405, 2008 | ||
Mut2010b | Kp - | Muterspaugh, M.W., Hartkopf, W.I., Lane. B.F., O'Connell, J., Williamson, M., | 2010AJ....140.1623M |
Mut2010b | Kulkarni, S.R., Konacki, M., Burke, B.F., Colavita, M.M., Shao, M., & | ||
Mut2010b | Wiktorowicz, S.J. | ||
Mut2010b | AJ 140, 1623, 2010 | ||
Sod1999 | orb - | Soderhjelm, S. | 1999A&A...341..121S |
Sod1999 | A&A 341, 121, 1999 | ||
TtB2000 | Ac j | ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., | 2000AJ....119.2403T |
TtB2000 | Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr. | ||
TtB2000 | AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO) | ||
USN2014b | lin - | Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. | 2014IAUDS.183....1H |
USN2014b | Inf. Circ. 183, 1, 2014 |
idgroup | discov | author |
1 | AGC | Clark, A.G. |
2 | DAL | Daley, J.A. |
52 | FYM | Fay, M. |
79 | JOD | Jodar, E., Perez-Garrido, A., Diaz-Sanchez, A., Villo, I., Rebolo, R., & |
79 | JOD | Perez-Prieto, J.A. |
80 | LEP | Lepine, S., Wallace, D., Shara, M., Moffat, A., & Niemela, V. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
21148+3803 | JOD 20 | Fa,Fb | 2008 | 1 | 18 | 0.4 | 12.20 | 13.80 | M2.5 | N | 211446.86+380113.7 |
21148+3803 | JOD 20 | Fa,Fb | 2018 | 4 | 349 | 0.9 | 12.20 | 13.80 | M2.5 | N | 211446.86+380113.7 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
|
A | B | C | D | E | F | Fb | G | H | I | J | K | |
B | pa=187.7° sep=1.04" | |||||||||||
C | pa=205.1° sep=69.27" | pa=205.4° sep=68.28" | ||||||||||
D | pa=202.9° sep=196.51" | pa=203.0° sep=195.50" | pa=201.7° sep=127.32" | |||||||||
E | pa=253.4° sep=69.52" | pa=254.2° sep=69.10" | pa=319.0° sep=56.75" | pa=3.5° sep=161.47" | ||||||||
F | pa=184.8° sep=89.71" | pa=184.7° sep=88.67" | pa=140.5° sep=34.59" | pa=37.0° sep=114.72" | pa=139.6° sep=91.34" | |||||||
Fb | pa=184.9° sep=88.83" | pa=184.9° sep=87.78" | pa=139.7° sep=33.82" | pa=36.7° sep=115.35" | pa=139.3° sep=90.57" | pa=351.5° sep=0.91" | ||||||
G | pa=106.5° sep=120.38" | pa=106.0° sep=120.22" | pa=78.9° sep=147.65" | pa=52.6° sep=241.65" | pa=94.5° sep=182.62" | pa=65.8° sep=134.71" | pa=66.2° sep=134.47" | |||||
H | pa=106.9° sep=127.34" | pa=106.4° sep=127.17" | pa=80.3° sep=153.51" | pa=54.0° sep=245.20" | pa=95.2° sep=189.28" | pa=67.9° sep=139.58" | pa=68.3° sep=139.37" | pa=112.8° sep=7.00" | ||||
I | pa=74.0° sep=427.02" | pa=73.9° sep=427.44" | pa=67.7° sep=475.49" | pa=58.5° sep=571.32" | pa=73.9° sep=496.54" | pa=63.7° sep=466.45" | pa=63.8° sep=466.17" | pa=62.8° sep=331.87" | pa=61.9° sep=327.42" | |||
J | pa=133.2° sep=43.17" | pa=132.1° sep=42.58" | pa=61.5° sep=69.34" | pa=35.5° sep=185.99" | pa=95.7° sep=98.58" | pa=33.0° sep=71.38" | pa=33.5° sep=70.70" | pa=273.2° sep=84.09" | pa=274.6° sep=90.71" | pa=248.8° sep=406.63" | ||
K | pa=322.7° sep=89.46" | pa=323.2° sep=90.21" | pa=349.5° sep=136.18" | pa=5.1° sep=253.22" | pa=7.8° sep=91.91" | pa=343.8° sep=167.27" | pa=343.7° sep=166.37" | pa=301.9° sep=199.66" | pa=301.6° sep=206.57" | pa=264.3° sep=466.92" | pa=319.6° sep=132.23" | |
L | pa=294.2° sep=26.70" | pa=296.3° sep=27.01" | pa=4.0° sep=73.83" | pa=15.2° sep=198.91" | pa=53.9° sep=52.30" | pa=350.4° sep=101.76" | pa=350.4° sep=100.86" | pa=287.9° sep=146.88" | pa=288.1° sep=153.85" | pa=256.2° sep=447.74" | pa=306.0° sep=68.97" | pa=153.7° sep=67.23" |
Name | Tau Cyg | Coord arcsec 2000 | 211447.49+380243.1 | Mag | 3.83 | Spectral class | F3V (yellow-white) | ||||
PmRA | 196.00 | PmDE | 410.0 | SAO | 71121 | HIP | 104887 | ||||
Tycho2 | 3169-03876-1 | HD | 202444 | HR | 8130 | GC | 29723 | ||||
BD | BD+37 4240 | Bayer | Tau Cygni | Bayer name | Tau | Flamsteed | 65 Cygni | ||||
Flamsteed name | 65 Cyg |
Tycho2 | 3169-03876-1 | Pflag | RAmdeg | 318.69775875 | DEmdeg | 38.04538156 | |||||
PmRA | 158.7 | PmDE | 431.3 | E RAmdeg | 3 | E DEmdeg | 3 | ||||
E pmRA | 1.5 | E pmDE | 1.5 | EpRAm | 1991.62 | EpDEm | 1991.61 | ||||
Num | 5 | Q RAmdeg | 1.7 | Q DEmdeg | 1.7 | Q pmRA | 1.7 | ||||
Q pmDE | 1.7 | BTmag | 4.202 | E BTmag | 0.014 | VTmag | 3.776 | ||||
E VTmag | 0.009 | Prox | 999 | TYC | T | HIP | 104887 | ||||
CCDM | AB | RAdeg | 318.69729222 | DEdeg | 38.04438222 | EpRA 1990 | 1.66 | ||||
EpDE 1990 | 1.66 | E RAdeg | 3.2 | E DEdeg | 3.2 | Posflg | P | ||||
Corr | 0.3 |
SAO | 71121 | DelFlag | RA1950 | PmRA1950 | 0.0134 | ||||||
DE1950 | PmDE1950 | 0.437 | Vmag | 3.8 | SpType | F0 | |||||
Double code | Source | 71 | CatNum | 799 | DM | BD+37 4240 | |||||
DMcomp | BDsup | HD | 202444 | M HD | 0 | ||||||
GC | 29723 | RA1950rad | 5.55360564 | DE1950rad | 0.66027878 | PmRA2000 | 0.0135 | ||||
PmDE2000 | 0.435 |
Catalog | H | HIP | 104887 | Proxy | H | RAhms | 21 14 47.35 | ||||
DEdms | +38 02 39.6 | Vmag | 3.74 | VarFlag | R Vmag | G | |||||
RAdeg | 318.697 | DEdeg | 38.0443 | AstroRef | A | Plx | 47.8 | ||||
CCDM | 21148+3803 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 6 | Rho | 0.637 | HD | 202444 | BD | BD+37 4240 | ||||
CD | CP | Dm number | +37 4240 | VIred | 0.46 | ||||||
SpType | F1IV | R SpType | Coord arcsec 2000 | 211447.35+380239.6 |
HIP | 104887 | Sn | 17 | So | 3 | Nc | 2 | ||||
RArad | 5.5623168101 | DErad | 0.6639986561 | Plx | 49.16 | PmRA | 196.99 | ||||
PmDE | 410.28 | E RArad | 0.23 | E DErad | 0.27 | E Plx | 0.4 | ||||
E pmRA | 0.3 | E pmDE | 0.3 | Hpmag | 3.8228 | E Hpmag | 0.0004 | ||||
SHp | 0.004 | VA | 0 | BV | 0.393 | E BV | 0.004 | ||||
VI | 0.46 |
Ccdm | 21148+3803 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -0.51 | DDEs | -15.7 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 6 | Vmag | 3.8 | Sp | F0 | PmNote | * | ||||
PmRA | 160 | PmDE | 440 | Dm number | +37 4240 | Cat1 | BD | ||||
Name2 | Cat2 | HD | 202444 | M HD | |||||||
ADS BDS | A14787 | M ADS BDS | N IDS | IDS | 21108N3737A | ||||||
HIC | 104887 |
Coord arcsec 2000 | 211447.48+380242.1 | Mag | 6.57 | Spectral class | F7V (yellow-white) | PmRA | 159.00 | ||||
PmDE | 431.0 | Calc delta mag | 2.74 | Calc coord | yes |
Ccdm | 21148+3803 | RComp | Comp | B | Note1 | * | |||||
Note2 | Discov num | AGC 13 | DRAs | DDEs | |||||||
R dRAs | Year | 1874 | Theta | Rho | |||||||
Obs | 99 | Vmag | 8.0 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A14787 | M ADS BDS | N IDS | IDS | 21108N3737B | ||||||
HIC | 104887 |
Coord arcsec 2000 | 211445.00+380140.4 | Mag | 12.2 | Calc delta mag | 8.37 | Calc coord | yes |
Ccdm | 21148+3803 | RComp | Comp | C | Note1 | ||||||
Note2 | Discov num | AGC 13 | DRAs | DDEs | |||||||
R dRAs | Year | 1914 | Theta | 228 | Rho | 29.4 | |||||
Obs | 8 | Vmag | 13.4 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A14787 | M ADS BDS | N IDS | IDS | 21108N3737C | ||||||
HIC |
Coord arcsec 2000 | 211441.02+375942.1 | Mag | 9.94 | PmRA | 0.00 | PmDE | -5.0 | ||||
Tycho2 | 3169-01046-1 | Calc delta mag | 6.11 | Calc coord | yes |
Tycho2 | 3169-01046-1 | Pflag | RAmdeg | 318.66387670 | DEmdeg | 37.99540734 | |||||
PmRA | -1.1 | PmDE | -4.2 | E RAmdeg | 14 | E DEmdeg | 13 | ||||
E pmRA | 1.7 | E pmDE | 1.6 | EpRAm | 1990.08 | EpDEm | 1990.21 | ||||
Num | 5 | Q RAmdeg | 1.1 | Q DEmdeg | 0.6 | Q pmRA | 1.1 | ||||
Q pmDE | 0.6 | BTmag | 10.083 | E BTmag | 0.024 | VTmag | 9.941 | ||||
E VTmag | 0.026 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 318.66387694 | DEdeg | 37.99541611 | EpRA 1990 | 1.69 | |||||
EpDE 1990 | 1.66 | E RAdeg | 14.8 | E DEdeg | 14.3 | Posflg | |||||
Corr | 0.2 |
Ccdm | 21148+3803 | RComp | Comp | D | Note1 | ||||||
Note2 | Discov num | AGC 13 | DRAs | DDEs | |||||||
R dRAs | Year | 1924 | Theta | 210 | Rho | 170.0 | |||||
Obs | 11 | Vmag | 10.1 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | +37 4237 | Cat1 | BD | ||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A14787 | M ADS BDS | N IDS | IDS | 21108N3737D | ||||||
HIC |
Coord arcsec 2000 | 211441.85+380223.3 | Mag | 12.4 | Calc delta mag | 8.57 | Calc coord | yes |
Coord arcsec 2000 | 211446.86+380113.7 | Coord calc | 211447.05+380113.8 | Mag | 12.2 | Mag composta | 11.95 | ||||
Spectral class | M2.5 (red) | PmRA | 165.00 | PmDE | 436.0 | Calc delta mag | 8.37 |
Coord arcsec 2000 | 211446.85+380114.6 | Mag | 13.8 | Calc delta mag | 9.97 | Calc coord | yes |
Coord arcsec 2000 | 211457.26+380208.9 | Coord calc | 211457.26+380208.9 | Mag | 12.5 | PmRA | -18.00 | ||||
PmDE | -3.0 | Calc delta mag | 8.67 |
Coord arcsec 2000 | 211457.81+380206.2 | Mag | 13.2 | Calc delta mag | 9.37 | Calc coord | yes |
Coord arcsec 2000 | 211522.25+380440.6 | Mag | 16.02 | PmRA | 216.00 | PmDE | 453.0 | ||||
Calc delta mag | 12.19 | Calc coord | yes |
Coord arcsec 2000 | 211450.15+380213.5 | Mag | 14 | Calc delta mag | 10.17 | Calc coord | yes |
Coord arcsec 2000 | 211442.91+380354.3 | Mag | 14.4 | PmRA | 1.00 | PmDE | 2.0 | ||||
Calc delta mag | 10.57 | Calc coord | yes |
Coord arcsec 2000 | 211445.43+380254.0 | Mag | 14.9 | Calc delta mag | 11.07 | Calc coord | yes |