16 Orionis
catalogues and names
| catalogues and names | NSV 01849, 16 Ori, HR 1672, HD 33254, SAO 112467, BD +9 743, FK5: 1142, WDS 05093+0950A |
| constellation | Orion |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 9min 19.6sec | DEC: +9° 49' 46'' | ||
| position (B1900) | RA: 5h 3min 49.5sec | DEC: +9° 42' 4'' | ||
| proper motion (J2000) | RA: 0.064 arcsec/a | DEC: -0.007 arcsec/a | ||
| radial velocity | 37 km/s note: spectroscopic binaries note: orbital data avaible |
|||
| rotational velocity | 15 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0.011 arcsec | |||
| galactic coordinates | longitude: 191.69° | latitude: -17.46° | ||
magnitude
| visual magnitude | 5.43 (V on UBV Johnson system) |
spectral / color information
| spectral class | A2m |
| B-V-magnitude | 0.24 |
| U-B-magnitude | 0.16 |
| R-I-magnitude |
| note (category: spectra): | Spectrum in violet indicates luminosity III; G-band region, V. |
variability information
| variable star identification | 1849 |
| note (category: variability): | 2.87d not confirmed. |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 168 arcsec |
| mag difference (of double or brightest multiple) | 4.5 |
| component ID | AC |
| note | Worley (1978) update of the IDS |
| note (category: spectroscopic binaries): | 155.83d, K 8.2k/s, V0 +42.9k/s, asini 13.0. |
miscellaneous information
| note (category: group membership): | Hyades cluster; Mel 25 #130. |
| note (category: stellar radii or diameters): | Radius relative to Sun = 2.2. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 9min 19.641sec | DEC: +9° 49' 46.43'' | ±0.06 arcsec | source: 15 |
| proper motion (J2000) | RA: 0.0043 arcsec/a | DEC: -0.007 arcsec/a | source: 25 | |
| radial velocity | 37 km/s | source: 25 | ||
| trigonometric parallax | 0.011 arcsec | ±0.001 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 191.7° | latitude: -17.46° | ||
magnitude:
| visual | 5.43 (observed) | source: 25 |
| photovisual | 5.4 | source: 2 |
spectral information:
| spectral class | A2 | source: 96 | |
| Morgan-Keenan | A2m | source: 25 | |
| B-magnitude | 5.67 ±0.05 | B-V-magnitude | 0.24 |
| U-magnitude | 5.83 ±0.05 | U-B-magnitude | 0.16 |
double/multiple star system information:
| separation between brightest and second brightest component | 88.6 arcsec |
| magnitude difference between brightest and second brightest component | 6.8 |
| position angle | 122 ° |
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: 5h 6min 34.444sec | DEC: +9° 46' 1.19'' | ±0.006 arcsec |
| position (J2000) | RA: 5h 9min 19.644sec | DEC: +9° 49' 46.52'' | |
| proper motion B1950 (FK4) | RA: 0.0042 arcsec/a | DEC: -0.005 arcsec/a | ±0.002 arcsec/a in RA ±0.002 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0043 arcsec/a | DEC: -0.007 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
| spectral class | A2 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | FK4, catalogue number: 1142 |
| Durchmusterung | BD+09 743 |
| Boss General Catalogue | 6300 |
| Henry Draper Catalogue | 33254 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 9.3min | DEC: +9° 50' |
| proper motion (J2000) | RA: 0.064 arcsec/a | DEC: -0.007 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 | 1909 | 1 | 122° | 88.6'' | 5.43 | 12.2 | A2m | BUP 75 |
| AC | 1909 | 1 | 228° | 168'' | 5.43 | 9.9 | - | BUP 75 |
discoverer information:
| discoverer code | discoverer | reference |
| BUP 75 | - | - |
notes:
| note | 13 Ori. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 5h 6min 34.4sec | DEC: +9° 46' 1'' |
variability informations:
| magnitute at max. brightness | 5.41 |
| magnitute at min. brightness | 5.43 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | AM |
references
| to a study | 660820D (designation: 16 ORI) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |