HR 860
catalogues and names
| catalogues and names | HR 860, HD 17948, SAO 12517, BD +60 591, FK5: 2201, WDS 02559+6131A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 2h 55min 56.9sec | DEC: +61° 31' 16'' | ||
| position (B1900) | RA: 2h 48min 1sec | DEC: +61° 6' 47'' | ||
| proper motion (J2000) | RA: 0.142 arcsec/a | DEC: 0.032 arcsec/a | ||
| radial velocity | 29 km/s | |||
| galactic coordinates | longitude: 137.21° | latitude: 2.15° | ||
magnitude
| visual magnitude | 5.59 (V on UBV Johnson system) |
spectral / color information
| spectral class | F4V |
| B-V-magnitude | 0.45 |
| U-B-magnitude | -0.1 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 89.6 arcsec |
| mag difference (of double or brightest multiple) | 5.5 |
| component ID | AC |
| note | Worley (1978) update of the IDS |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 2h 55min 56.905sec | DEC: +61° 31' 16.2'' | ±0.22 arcsec | source: 15 |
| proper motion (J2000) | RA: 0.0199 arcsec/a | DEC: 0.032 arcsec/a | source: 25 | |
| radial velocity | 29 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 137.22° | latitude: 2.15° | ||
magnitude:
| visual | 5.59 (observed) | source: 25 |
| photovisual | 5.6 | source: 2 |
spectral information:
| spectral class | F5 | source: 96 | |
| Morgan-Keenan | F4V | source: 25 | |
| B-magnitude | 6.04 ±0.05 | B-V-magnitude | 0.45 |
| U-magnitude | 5.94 ±0.05 | U-B-magnitude | -0.1 |
double/multiple star system information:
| separation between brightest and second brightest component | 52.6 arcsec |
| magnitude difference between brightest and second brightest component | 7.5 |
| position angle | 256 ° |
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: 2h 51min 57.791sec | DEC: +61° 19' 7.75'' | ±0.042 arcsec |
| position (J2000) | RA: 2h 55min 56.944sec | DEC: +61° 31' 16.21'' | |
| proper motion B1950 (FK4) | RA: 0.0203 arcsec/a | DEC: 0.037 arcsec/a | ±0.009 arcsec/a in RA ±0.007 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0203 arcsec/a | DEC: 0.031 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 | F5 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 3487 |
| Durchmusterung | BD+60 591 |
| Boss General Catalogue | 3487 |
| Henry Draper Catalogue | 17948 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 2h 55.9min | DEC: +61° 31' |
| proper motion (J2000) | RA: 0.142 arcsec/a | DEC: 0.032 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 |
| AB | 1911 | 2 | 256° | 50.8'' | 5.59 | 13.1 | F4V | BUP 36 |
| 1925 | - | 52.6'' | ||||||
| AC | 1911 | 2 | 43° | 91.5'' | 5.59 | 11.1 | F4V | BUP 36 |
| 1925 | - | 89.6'' |
discoverer information:
| discoverer code | discoverer | reference |
| BUP 36 | - | - |