Coord 2000 | 19324+6940 | Discov num | WGA 1 | Comp | AC | Coord arcsec 2000 | 19 32 21.59 +69 39 40.2 | ||||
Date first | 1992 | Date last | 1992 | Obs | 0 | ||||||
Pa first | -1 | Pa last | -1 | P.A. Now (θ) | -1 | ||||||
Sep first | 11.0 | Sep last | 11 | Sep. Now (ρ) | 11" | ||||||
Mag pri | 4.76 | Mag sec | delta mag (ΔM) | Spectral class | K0V (yellow-orange) | ||||||
Pri motion ra | +060 | Sec motion ra | |||||||||
Pri motion dec | -174 | Sec motion dec | |||||||||
Notes | N P (See Notes, 100-year proper motion) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | Alsafi | 18396 | 19 32 22 +69 39 40 | STT 590 AB | 1999 | 7 | 339 | 492.8 | 4.76 | 11.35 | 6.59 | ||
Show | 18396 | 19 32 22 +69 39 40 | WGA 1 AC | 1992 | 0 | -1 | 11.0 | 4.76 | <=== |
Common name | Alsafi | Var name | NSV12176 Dra | Constellation | Draco | SAO | 18396 | ||||
HIP | 96100 | Tycho2 | 4448-02481-1 | HD | 185144 | HR | 7462 | ||||
GC | 27050 | GL | Gl 764 | BD | BD+69 1053 | Bayer | Sigma Draconis | ||||
Bayer name | Sig Dra | Flamsteed | 61 Draconis | Flamsteed name | 61 Dra | Distance | 5.75 | ||||
Distance ly | 18.76 | Bayer greek | σ Dra |
Other names | ATHAFI, ALSAFI |
Meaning | tripod for cooking |
discov_num | notes | refcode |
STT 590 | sig Dra = 61 Dra = Alsafi. Proper motion of A: +593-1738. B : -010-014. | |
Optical pair, based on study of relative motion of the components | ||
using the method of apparent motion parameters. | Kiy2008 | |
CHARA Array Limb-darkened diameter 1.254 +/- 0.012 mas, | CIA2008d | |
R = 0.778 +/- 0.008 \rsun, Teff = 5299 +/- 32, | ||
L = 0.428 +/- 0.013 \lsun. | ||
CHARA Array Limb-darkened diameter 1.254 +/- 0.012 mas, | CIA2012e | |
R = 0.776 +/- 0.008 \rsun, L = 0.410 +/-0.006 \lsun, | ||
Teff = 5255 +/- 31 K. |
refcode | metd | author | reference |
CIA2008d | not j | Boyajian, T.S., McAlister, H.A., Baines, E.K., Gies, D.R., Henry, T., Jao, W.-C., | 2008ApJ...683..424B |
CIA2008d | O'Brien, D., Raghavan, D., Touhami, Y., ten Brummelaar, T.A., Farrington, C., | . | |
CIA2008d | Goldfinger, P.J., Sturmann, L., Sturmann, J., Turner, N.H. & Ridgway, S. | . | |
CIA2008d | ApJ 683, 424, 2008 | . | |
CIA2012e | not j | Boyajian, T.S., McAlister, H.A., van Belle, G., Gies, D.R., ten Brummelaar, T.A., | 2012ApJ...746..101B |
CIA2012e | von Braun, K., Farrington, C., Goldfinger, P.J., O'Brien, D., Parks, J.R., | . | |
CIA2012e | Richardson, N.D., Ridgway, S., Schaefer, G., Sturmann, L., Sturmann, J., Touhami, | . | |
CIA2012e | Y., Turner, N.H. & White, R. | . | |
CIA2012e | ApJ 746, 101, 2012 | . | |
Kiy2008 | - | Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. | 2008SvAL...32..405K |
Kiy2008 | SvAL 34, 405, 2008 |
idgroup | discov | author |
1 | STT | Struve, O. |
38 | WGA | Walker, G.A.H., Walker, A.R., Racine, R., Fletcher, J.M., & McClure, R.D. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
19324+6940 | WGA 1 | AC | 0 | 11.0 | 3.66 | 21.70 | R | 193220.59+693955.4 | |||
19324+6940 | WGA 1 | AC | 1992 | 0 | -1 | 11.0 | 3.66 | 21.70 | K0V | NP R | 193220.59+693955.4 |
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. |
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A | B | |
B | pa=352.5° sep=464.91" | |
C | pa=0.0° sep=0.00" | pa=172.6° sep=464.91" |
Common name | Alsafi | Meaning | tripod for cooking | Other names | ATHAFI, ALSAFI | Coord arcsec 2000 | 193221.59+693940.2 | ||||
Mag | 4.76 | Spectral class | K0V (yellow-orange) | PmRA | 60.00 | PmDE | -174.0 | ||||
SAO | 18396 | HIP | 96100 | Tycho2 | 4448-02481-1 | HD | 185144 | ||||
HR | 7462 | GC | 27050 | BD | BD+69 1053 | Bayer | Sigma Draconis | ||||
Bayer name | Sig Dra | Flamsteed | 61 Draconis | Flamsteed name | 61 Dra |
Tycho2 | 4448-02481-1 | Pflag | RAmdeg | 293.08996735 | DEmdeg | 69.66118390 | |||||
PmRA | 599.2 | PmDE | -1734.7 | E RAmdeg | 3 | E DEmdeg | 3 | ||||
E pmRA | 1.9 | E pmDE | 2.0 | EpRAm | 1991.67 | EpDEm | 1991.71 | ||||
Num | 3 | Q RAmdeg | 2.3 | Q DEmdeg | 0.3 | Q pmRA | 2.3 | ||||
Q pmDE | 0.3 | BTmag | 5.657 | E BTmag | 0.014 | VTmag | 4.757 | ||||
E VTmag | 0.009 | Prox | 999 | TYC | T | HIP | 96100 | ||||
CCDM | RAdeg | 293.08598722 | DEdeg | 69.66516861 | EpRA 1990 | 1.69 | |||||
EpDE 1990 | 1.73 | E RAdeg | 3.3 | E DEdeg | 3.3 | Posflg | |||||
Corr | -0.1 |
SAO | 18396 | DelFlag | RA1950 | PmRA1950 | 0.1098 | ||||||
DE1950 | PmDE1950 | -1.744 | Vmag | 4.8 | SpType | K0 | |||||
Double code | Source | 70 | CatNum | 27050 | DM | BD+69 1053 | |||||
DMcomp | BDsup | HD | 185144 | M HD | 0 | ||||||
GC | 27050 | RA1950rad | 5.11582073 | DE1950rad | 1.21433274 | PmRA2000 | 0.1152 | ||||
PmDE2000 | -1.739 |
Catalog | H | HIP | 96100 | Proxy | RAhms | 19 32 20.59 | |||||
DEdms | +69 39 55.4 | Vmag | 4.67 | VarFlag | R Vmag | H | |||||
RAdeg | 293.086 | DEdeg | 69.6654 | AstroRef | Plx | 173.41 | |||||
CCDM | 19322+6941 | N CCDM | I | Nsys | 1 | Ncomp | 1 | ||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | 185144 | BD | BD+69 1053 | ||||||
CD | CP | Dm number | +69 1053 | VIred | 0.85 | ||||||
SpType | K0V | R SpType | Coord arcsec 2000 | 193220.59+693955.4 |
HIP | 96100 | Sn | 5 | So | 0 | Nc | 1 | ||||
RArad | 5.1153118045 | DErad | 1.2158906334 | Plx | 173.77 | PmRA | 598.07 | ||||
PmDE | -1738.4 | E RArad | 0.16 | E DErad | 0.17 | E Plx | 0.18 | ||||
E pmRA | 0.17 | E pmDE | 0.19 | Hpmag | 4.8114 | E Hpmag | 0.0005 | ||||
SHp | 0.004 | VA | 0 | BV | 0.786 | E BV | 0.007 | ||||
VI | 0.85 |
Coord arcsec 2000 | 193209.98+694721.2 | Mag | 11.35 | PmRA | -1.00 | PmDE | -1.0 | ||||
Calc delta mag | 6.59 | Calc coord | yes |
Coord arcsec 2000 | 193221.59+693940.2 | Calc delta mag | 4.76 | Calc coord | yes |