Sadalachbia
catalogues and names
| catalogues and names | Sadalachbia, g Aqr, NSV 14132, 48 Aqr, HR 8518, HD 212061, SAO 146044, BD -2 5741, FK5: 842, WDS 22217-0123 |
| other names | Sadachbia |
| constellation | Aquarius |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
| note (category: star names): | Sadalachbia; Sadachbia. |
position, motion, parallax:
| position (J2000) | RA: 22h 21min 39.4sec | DEC: -1° 23' 14'' | ||
| position (B1900) | RA: 22h 16min 29.5sec | DEC: -1° 53' 29'' | ||
| proper motion (J2000) | RA: 0.132 arcsec/a | DEC: 0.007 arcsec/a | ||
| radial velocity | -15 km/s note: spectroscopic binaries |
|||
| rotational velocity | 57 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.046 arcsec | |||
| galactic coordinates | longitude: 62.18° | latitude: -45.84° | ||
magnitude
| visual magnitude | 3.84 (V on UBV Johnson system) |
spectral / color information
| spectral class | A0V |
| B-V-magnitude | -0.05 |
| U-B-magnitude | -0.12 |
| R-I-magnitude |
| note (category: spectra): | Lambda Boo star. |
variability information
| variable star identification | 14132 |
double/multiple star system information
| separation | 37.4 arcsec |
| mag difference (of double or brightest multiple) | 7.9 |
| note (category: double and multiple data): | Optical. |
| note (category: spectroscopic binaries): | ADS 15864A. Unresolved by speckle interferometry. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 22h 21min 39.378sec | DEC: -1° 23' 14.44'' | ±0.06 arcsec | source: 15 |
| proper motion (J2000) | RA: 0.0088 arcsec/a | DEC: 0.007 arcsec/a | source: 25 | |
| radial velocity | -15 km/s | source: 25 | ||
| trigonometric parallax | 0.046 arcsec | ±0.005 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 62.19° | latitude: -45.84° | ||
magnitude:
| visual | 3.84 (observed) | source: 25 |
| photovisual | 4 | source: 2 |
spectral information:
| spectral class | A0 | source: 96 | |
| Morgan-Keenan | A0V | source: 25 | |
| B-magnitude | 3.79 ±0.05 | B-V-magnitude | -0.05 |
| U-magnitude | 3.67 ±0.05 | U-B-magnitude | -0.12 |
double/multiple star system information:
| separation between brightest and second brightest component | 36.5 arcsec |
| magnitude difference between brightest and second brightest component | 8.4 |
| position angle | 146 ° |
sources:
| 2 | HD and HDE Catalogs |
| Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University | |
| 15 | FK5, FK5 Extension and FK5 Supplement |
| Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991 | |
| 19 | WDS Catalog |
| Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996 | |
| 25 | Bright Star Catalogue, 5th edition |
| Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994 | |
| 96 | SAO or HD/HDE Catalog |
| Reference from Value 1 or Reference from Value 2 | |
data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)
position and proper motion:
| position (B1950) | RA: 22h 19min 4.42sec | DEC: -1° 38' 23.77'' | ±0.004 arcsec |
| position (J2000) | RA: 22h 21min 39.376sec | DEC: -1° 23' 14.37'' | |
| proper motion B1950 (FK4) | RA: 0.0086 arcsec/a | DEC: 0.012 arcsec/a | ±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0088 arcsec/a | DEC: 0.007 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
| spectral class | A0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | FK4, catalogue number: 842 |
| Durchmusterung | BD-02 5741 |
| Boss General Catalogue | 31257 |
| Henry Draper Catalogue | 212061 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 22h 21.7min | DEC: -1° 23' |
| proper motion (J2000) | RA: 0.132 arcsec/a | DEC: 0.007 arcsec/a |
double/multiple star system information:
| component | year | number of measures | position angle | angular separation | magnitude of 1st component | magnitude of 2nd component | spectral class(es) | discoverer code |
| - | 1838 | 6 | 126° | 49.5'' | 3.84 | 12.2 | A0V | HJ 3106 |
| 1985 | 146° | 36.5'' |
discoverer information:
| discoverer code | discoverer | reference |
| HJ 3106 | Herschel, J. | - |
notes:
| note | Gamma Aqr. A is a spectroscopic binary. B is optical. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 22h 19min 4.4sec | DEC: -1° 38' 24'' |
variability informations:
| magnitute at max. brightness | 3.84 |
| magnitute at min. brightness | 3.89 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | A0 |
references
| to a study | 290477D (designation: ZI 2085) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |