Kornephoros
| catalogues and names | Kornephoros, b Her, NSV 07778, 27 Her, HR 6148, HD 148856, SAO 84411, FK5: 618, WDS 16302+2129A |
| other names | Korneforos, Rutilicus |
| constellation | Hercules |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
| note (category: star names): | Kornephoros; Korneforos; Rutilicus. |
position, motion, parallax:
| position (J2000) | RA: 16h 30min 13,2sec | DEC: +21° 29' 23'' |
| position (J1900) | RA: 16h 25min 55,2sec | DEC: +21° 42' 27'' |
| proper motion (J2000) | RA: -0,098 arcsec/a | DEC: -0,015 arcsec/a |
| radial velocity | -26 km/s note: spectroscopic binaries, single lined spectra note: orbital data avaible |
|
| rotational velocity | <19 km/s | |
| trigonometric parallax | 0,024 arcsec | |
magnitude
| visual magnitude | 2,77 (V on UBV Johnson system) |
spectral / color information
| spectral class | G7IIIa |
| B-V-magnitude | 0,94 |
| U-B-magnitude | 0,69 |
| R-I-magnitude | 0,47 |
variability information
| variable star identification | 7778 |
double/multiple star system information
| separation | 256,2 arcsec |
| mag difference (of double or brightest multiple) | 7,3 |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Visual companion probably optical. |
| note (category: spectroscopic binaries): | 410.575d, K 12.8k/s, V0 -25.5k/s, asini 60.4. Unresolved by speckle interferometry. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 16h 30min 13,201sec | DEC: +21° 29' 22,56'' | ±0,06 arcsec | source: 15 |
| proper motion (J2000) | RA: -0,007 arcsec/a | DEC: -0,015 arcsec/a | source: 25 | |
| radial velocity | -26 km/s | source: 25 | ||
| trigonometric parallax | 0,024 | ±0,002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 39,01° | latitude: 40,21° | ||
| GCI unit vector (J2000) | X: -0,355255 | Y: -0,859997 | Z: 0,366332 | |
magnitude:
| visual | 2,77 (observed) | source: 25 |
| photovisual | 2,8 | source: 2 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | G7IIIaFe-0.5 | source: 25 | |
| B-magnitude | 3,71 ±0,05 | B-V-magnitude | 0,94 |
| U-magnitude | 4,4 ±0,05 | U-B-magnitude | 0,69 |
double/multiple star system information:
| separation between brightest and second brightest component | 0 arcsec |
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 (J1950) | RA: 16h 28min 4,105sec | DEC: +21° 35' 50,16'' | ±0,004 arcsec |
| position (J2000) | RA: 16h 30min 13,2sec | DEC: +21° 29' 22,49'' | |
| proper motion J1950 (FK4) | RA: -0,0071 arcsec/a | DEC: -0,017 arcsec/a | ±0,001 arcsec/a in RA ±0,001 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,007 arcsec/a | DEC: -0,015 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 2,8 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
| spectral class | K0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | FK4, catalogue number: 618 |
| Durchmusterung | BD+21 2934 |
| Boss General Catalogue | 22193 |
| Henry Draper Catalogue | 148856 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 16h 30,2min | DEC: +21° 29' |
| proper motion (J2000) | RA: -0,098 arcsec/a | DEC: -0,015 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 |
| Aa | 1975 | 4 | ° | 0'' | 2,77 | - | G7IIIa | BLA |
| Aa-B | 1879 | 3 | 274° | 256,2'' | 2,77 | 10,1 | - | BUP 170 |
discoverer information:
| discoverer code | discoverer | reference |
| BLA | Blazit, A. et al | |
| BUP 170 | - | - |
notes:
| note | Beta Her. A is a long-period spectroscopic binary, resolved by speckle interferometry. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (J1950) | RA: 16h 28min 4,1sec | DEC: +21° 35' 50'' |
variability informations:
| magnitute at max. brightness | 2,76 |
| magnitute at min. brightness | 2,81 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | G8 |
references
| to a study | 182615D (designation: BETA HER) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |