83 Herculis
catalogues and names
| catalogues and names | 83 Her, HR 6602, HD 161074, SAO 85344, BD +24 3231, WDS 17425+2434 |
| constellation | Hercules |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 17h 42min 28.4sec | DEC: +24° 33' 51'' | ||
| position (B1900) | RA: 17h 38min 22.3sec | DEC: +24° 36' 52'' | ||
| proper motion (J2000) | RA: -0.055 arcsec/a | DEC: -0.105 arcsec/a | ||
| radial velocity | -27 km/s | |||
| trigonometric parallax | 0.02 arcsec | |||
| galactic coordinates | longitude: 48.81° | latitude: 25.43° | ||
magnitude
| visual magnitude | 5.52 (V on UBV Johnson system) |
spectral / color information
| spectral class | K4III |
| B-V-magnitude | 1.46 |
| U-B-magnitude | 1.69 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
double/multiple star system information
| separation | 159.6 arcsec |
| mag difference (of double or brightest multiple) | 3.6 |
| note | Worley (1978) update of the IDS |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 17h 42min 28.363sec | DEC: +24° 33' 50.57'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: -0.0039 arcsec/a | DEC: -0.103 arcsec/a | source: 25 | |
| radial velocity | -27 km/s | source: 25 | ||
| trigonometric parallax | 0.02 arcsec | ±0.002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 48.81° | latitude: 25.43° | ||
magnitude:
| visual | 5.52 (observed) | source: 25 |
| photovisual | 5.6 | source: 2 |
| photographic | 7 | source: 16 |
spectral information:
| spectral class | K5 | source: 96 | |
| Morgan-Keenan | K4III | source: 25 | |
| B-magnitude | 6.98 ±0.05 | B-V-magnitude | 1.46 |
| U-magnitude | 8.67 ±0.05 | U-B-magnitude | 1.69 |
double/multiple star system information:
| separation between brightest and second brightest component | 156.1 arcsec |
| magnitude difference between brightest and second brightest component | 3.7 |
| position angle | 260 ° |
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 | |
| 16 | PPM North and PPM South Catalogs and PPM Supplement |
| Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993 | |
| 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: 17h 40min 25.238sec | DEC: +24° 35' 16.75'' | ±0.018 arcsec |
| position (J2000) | RA: 17h 42min 28.362sec | DEC: +24° 33' 50.49'' | |
| proper motion B1950 (FK4) | RA: -0.0042 arcsec/a | DEC: -0.105 arcsec/a | ±0.003 arcsec/a in RA ±0.002 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.004 arcsec/a | DEC: -0.105 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K5 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 24028 |
| Durchmusterung | BD+24 3231 |
| Boss General Catalogue | 24028 |
| Henry Draper Catalogue | 161074 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 17h 42.5min | DEC: +24° 34' |
| proper motion (J2000) | RA: -0.052 arcsec/a | DEC: -0.106 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 |
| - | 1886 | 5 | 260° | 159.6'' | 5.52 | 9.2 | K4III | ENG 62 |
| 1923 | - | 156.1'' |
discoverer information:
| discoverer code | discoverer | reference |
| ENG 62 | Engelmann, R. | - |
notes:
| note | 83 Her. |