56 Orionis
catalogues and names
| catalogues and names | NSV 02690, 56 Ori, HR 2037, HD 39400, SAO 113220, BD +1 1151, FK5: 2444, WDS 05524+0151 |
| constellation | Orion |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 52min 26.4sec | DEC: +1° 51' 18'' | ||
| position (B1900) | RA: 5h 47min 14.8sec | DEC: +1° 49' 51'' | ||
| proper motion (J2000) | RA: -0.007 arcsec/a | DEC: -0.012 arcsec/a | ||
| radial velocity | 10 km/s | |||
| rotational velocity | <19 km/s | |||
| trigonometric parallax | 0.005 arcsec | |||
| galactic coordinates | longitude: 204.41° | latitude: -12.22° | ||
magnitude
| visual magnitude | 4.78 (V on UBV Johnson system) |
spectral / color information
| spectral class | K1.5IIb |
| B-V-magnitude | 1.38 |
| U-B-magnitude | 1.47 |
| IR-note | object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978) |
variability information
| variable star identification | 2690 |
double/multiple star system information
| separation | 43.4 arcsec |
| mag difference (of double or brightest multiple) | 8.4 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 52min 26.439sec | DEC: +1° 51' 18.23'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: -0.0005 arcsec/a | DEC: -0.01 arcsec/a | source: 25 | |
| radial velocity | 10 km/s | source: 25 | ||
| trigonometric parallax | 0.005 arcsec | - | source: 25 | |
| galactic coord. (B1950) | longitude: 204.41° | latitude: -12.22° | ||
magnitude:
| visual | 4.78 (observed) | source: 25 |
| photovisual | 5 | source: 2 |
| photographic | 6.3 | source: 16 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | K1.5IIb | source: 25 | |
| B-magnitude | 6.16 ±0.05 | B-V-magnitude | 1.38 |
| U-magnitude | 7.63 ±0.05 | U-B-magnitude | 1.47 |
double/multiple star system information:
| separation between brightest and second brightest component | 43.4 arcsec |
| magnitude difference between brightest and second brightest component | 8.7 |
| position angle | 212 ° |
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: 5h 49min 50.57sec | DEC: +1° 50' 40.22'' | ±0.019 arcsec |
| position (J2000) | RA: 5h 52min 26.45sec | DEC: +1° 51' 18.59'' | |
| proper motion B1950 (FK4) | RA: -0.0006 arcsec/a | DEC: -0.007 arcsec/a | ±0.003 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.0004 arcsec/a | DEC: -0.007 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5 (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. |
remarks for duplicity and variability
| Double star in Aitken's Double Star Catalogue (Aitken 1932) |
catalogues
| source catalogue | GC, catalogue number: 7380 |
| Durchmusterung | BD+01 1151 |
| Boss General Catalogue | 7380 |
| Henry Draper Catalogue | 39400 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 52.4min | DEC: +1° 51' |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: -0.018 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 |
| - | 1901 | 1 | 212° | 43.4'' | 4.78 | 13.5 | K1.5IIb | BU 1404 |
discoverer information:
| discoverer code | discoverer | reference |
| BU 1404 | Burnham, S.W. | - |
notes:
| note | 56 Ori. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 5h 49min 50.6sec | DEC: +1° 50' 40'' |
variability informations:
| magnitute at max. brightness | 4.73 |
| magnitute at min. brightness | 4.78 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | K2 |
references
| to a study | 0807D (designation: 147G ORI) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |