44 Aquarii
catalogues and names
| catalogues and names | NSV 14100, 44 Aqr, HR 8504, HD 211434, SAO 145993, BD -6 5960, FK5: 3782 |
| constellation | Aquarius |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 22h 17min 6.5sec | DEC: -5° 23' 14'' | ||
| position (B1900) | RA: 22h 11min 53.2sec | DEC: -5° 53' 12'' | ||
| proper motion (J2000) | RA: -0.002 arcsec/a | DEC: 0.02 arcsec/a | ||
| radial velocity | 7 km/s | |||
| galactic coordinates | longitude: 56.54° | latitude: -47.35° | ||
magnitude
| visual magnitude | 5.75 (V on UBV Johnson system) |
spectral / color information
| spectral class | G6III |
| B-V-magnitude | 0.88 |
| U-B-magnitude | 0.51 |
variability information
| variable star identification | 14100 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 22h 17min 6.507sec | DEC: -5° 23' 13.75'' | ±0.22 arcsec | source: 15 |
| proper motion (J2000) | RA: -0.0002 arcsec/a | DEC: 0.02 arcsec/a | source: 25 | |
| radial velocity | 7 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 56.55° | latitude: -47.35° | ||
magnitude:
| visual | 5.75 (observed) | source: 25 |
| photovisual | 5.8 | source: 2 |
| photographic | 6.6 | source: 2 |
spectral information:
| spectral class | G5 | source: 96 | |
| Morgan-Keenan | G6III | source: 25 | |
| B-magnitude | 6.63 ±0.05 | B-V-magnitude | 0.88 |
| U-magnitude | 7.14 ±0.05 | U-B-magnitude | 0.51 |
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 | |
| 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 14min 29.931sec | DEC: -5° 38' 15.02'' | ±0.016 arcsec |
| position (J2000) | RA: 22h 17min 6.558sec | DEC: -5° 23' 13.49'' | |
| proper motion B1950 (FK4) | RA: 0.0002 arcsec/a | DEC: 0.025 arcsec/a | ±0.003 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0004 arcsec/a | DEC: 0.021 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.8 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | G5 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 31163 |
| Durchmusterung | BD-06 5960 |
| Boss General Catalogue | 31163 |
| Henry Draper Catalogue | 211434 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 22h 14min 30sec | DEC: -5° 38' 15'' |
variability informations:
| variability type | - |
| magnitute at max. brightness | 5.75 |
| magnitute at min. brightness | |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | G5 |
references
| to a study | 0807D (designation: 131G AQR) |