HR 6050
catalogues and names
| catalogues and names | HR 6050, HD 145931, SAO 45957, BD +42 2683, FK5: 3281, WDS 16118+4222 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 16h 11min 47.6sec | DEC: +42° 22' 28'' | ||
| position (B1900) | RA: 16h 8min 28.9sec | DEC: +42° 37' 50'' | ||
| proper motion (J2000) | RA: -0.006 arcsec/a | DEC: 0.027 arcsec/a | ||
| radial velocity | -21 km/s note: suspected variable radial velocity |
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| galactic coordinates | longitude: 67.03° | latitude: 46.82° | ||
magnitude
| visual magnitude | 5.87 (V on UBV Johnson system) |
spectral / color information
| spectral class | K4II+F6-8V |
| B-V-magnitude | 1.45 |
| U-B-magnitude | 1.74 |
| R-I-magnitude | |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
double/multiple star system information
| separation | 23.6 arcsec |
| mag difference (of double or brightest multiple) | 4.3 |
| note (category: double and multiple data): | Companion, 10.73V, +0.58(B-V), +0.08(U-V), F8IV:, CPM. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 16h 11min 47.609sec | DEC: +42° 22' 28.49'' | ±0.22 arcsec | source: 15 |
| proper motion (J2000) | RA: -0.0005 arcsec/a | DEC: 0.027 arcsec/a | source: 25 | |
| radial velocity | -21 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 67.03° | latitude: 46.82° | ||
magnitude:
| visual | 5.87 (observed) | source: 25 |
| photovisual | 6 | source: 2 |
spectral information:
| spectral class | K5 | source: 96 | |
| Morgan-Keenan | K4II+F6-8V | source: 25 | |
| B-magnitude | 7.32 ±0.05 | B-V-magnitude | 1.45 |
| U-magnitude | 9.06 ±0.05 | U-B-magnitude | 1.74 |
double/multiple star system information:
| separation between brightest and second brightest component | 23.6 arcsec |
| magnitude difference between brightest and second brightest component | 4.87 |
| position angle | 44 ° |
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: 16h 10min 8.147sec | DEC: +42° 30' 6.07'' | ±0.033 arcsec |
| position (J2000) | RA: 16h 11min 47.597sec | DEC: +42° 22' 28.61'' | |
| proper motion B1950 (FK4) | RA: -0.001 arcsec/a | DEC: 0.026 arcsec/a | ±0.007 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.0006 arcsec/a | DEC: 0.028 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 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. |
remarks for duplicity and variability
| Double star in Aitken's Double Star Catalogue (Aitken 1932) |
catalogues
| source catalogue | GC, catalogue number: 21802 |
| Durchmusterung | BD+42 2683 |
| Boss General Catalogue | 21802 |
| Henry Draper Catalogue | 145931 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 16h 11.8min | DEC: +42° 22' |
| proper motion (J2000) | RA: -0.006 arcsec/a | DEC: 0.027 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 |
| - | 1900 | 7 | 44° | 23.6'' | 5.86 | 10.73 | K4III | STF2024 |
discoverer information:
| discoverer code | discoverer | reference |
| STF2024 | Struve, F.G.W. | - |
notes:
| note | H IV 115. Composite spectrum; K4II+F6-8V. |