HR 5227
catalogues and names
| catalogues and names | HR 5227, HD 121146, SAO 16197, BD +69 724, FK5: 3103, WDS 13510+6819A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 13h 50min 59.2sec | DEC: +68° 18' 55'' | ||
| position (B1900) | RA: 13h 48min 31.8sec | DEC: +68° 48' 39'' | ||
| proper motion (J2000) | RA: -0.172 arcsec/a | DEC: -0.055 arcsec/a | ||
| radial velocity | -45 km/s | |||
| trigonometric parallax | 0.025 arcsec | |||
| galactic coordinates | longitude: 114.79° | latitude: 47.86° | ||
magnitude
| visual magnitude | 6.4 (V on UBV Johnson system) |
spectral / color information
| spectral class | K2IV |
| B-V-magnitude | 1.17 |
| R-I-magnitude |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 79.1 arcsec |
| mag difference (of double or brightest multiple) | 1.8 |
| component ID | AB |
| note | Worley (1978) update of the IDS |
miscellaneous information
| note (category: group membership): | Eta Cep group. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 13h 50min 59.169sec | DEC: +68° 18' 55.17'' | ±0.2 arcsec | source: 52 |
| proper motion (J2000) | RA: -0.0307 arcsec/a | DEC: -0.052 arcsec/a | source: 25 | |
| radial velocity | -45 km/s | source: 25 | ||
| trigonometric parallax | 0.025 arcsec | ±0.002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 114.79° | latitude: 47.86° | ||
magnitude:
| visual | 6.4 (observed) | source: 25 |
| photovisual | 6.4 | source: 2 |
| photographic | 7.5 | source: 16 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | K2IV | source: 25 | |
| B-magnitude | 7.57 ±0.05 | B-V-magnitude | 1.17 |
double/multiple star system information:
| separation between brightest and second brightest component | 79.1 arcsec |
| magnitude difference between brightest and second brightest component | 1.8 |
| position angle | 65 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 6.4 | K0 | HR 5227, HD 121146, SAO 16197 |
| B | 8.2 | G5 |
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 | |
| 52 | PPMN-HP subset |
| PPMN Star Catalogue (Reference 16) High-Precision Subset (Code H) | |
| 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: 13h 49min 45.18sec | DEC: +68° 33' 45.1'' | ±0.03 arcsec |
| position (J2000) | RA: 13h 50min 58.935sec | DEC: +68° 18' 53.81'' | |
| proper motion B1950 (FK4) | RA: -0.0351 arcsec/a | DEC: -0.069 arcsec/a | ±0.006 arcsec/a in RA ±0.005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.034 arcsec/a | DEC: -0.067 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K0 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 18744 |
| Durchmusterung | BD+69 724 |
| Boss General Catalogue | 18744 |
| Henry Draper Catalogue | 121146 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 13h 51min | DEC: +68° 19' |
| proper motion (J2000) | RA: -0.172 arcsec/a | DEC: -0.055 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 | 1844 | 15 | 68° | 74.1'' | 6.4 | 8.2 | K2IV | STT 127 |
| 1924 | 65° | 79.1'' | ||||||
| BC | 1912 | 1 | 65° | 44.9'' | 8.2 | 13 | G5 | STT 127 |
discoverer information:
| discoverer code | discoverer | reference |
| STT 127 | Struve, O. | - |