additional / editable data
| entry 1 (25.03.00,21:31:44) |
#rel: HR 2356; HR 2357; HR 2358; NSV 2977 |
b Monocerotis
catalogues and names
| catalogues and names | b Mon, NSV 02977, 11 Mon, HR 2358, HD 45727, WDS 06288-0702C |
| constellation | Monoceros |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 6h 28min 49,5sec | DEC: -7° 2' 4'' | ||
| position (2001,17) | RA: 6h 28min 53sec | DEC: -7° 2' 7'' | ||
| position (B1900) | RA: 6h 23min 58,5sec | DEC: -6° 58' 14'' | ||
| proper motion (J2000) | RA: -0,016 arcsec/a | DEC: 0,005 arcsec/a | ||
| radial velocity | 23 km/s | |||
| rotational velocity | 331 km/s (uncertain) (variable) | |||
| trigonometric parallax | 0,021 arcsec | |||
| galactic coordinates | longitude: 216,66° | latitude: -8,21° | ||
| note (category: dynamical parallaxes): | 0.008". |
magnitude
| visual magnitude | 5,6 (original HR magnitude) |
spectral / color information
| spectral class | B3e |
variability information
| variable star identification | 2977 |
double/multiple star system information
| number of components of multiple star system | 4 |
| separation | 7,1 arcsec |
| mag difference (of double or brightest multiple) | 0,5 |
| component ID | AB |
| note (category: double and multiple data): | See HR 2356. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 6h 28min 49,51sec | DEC: -7° 2' 3,9'' | ±0,76 arcsec | source: 18 |
| position (2001,17) | RA: 6h 28min 53sec | DEC: -7° 2' 7'' | JD: 2451972,92 | |
| proper motion (J2000) | RA: -0,0015 arcsec/a | DEC: 0,002 arcsec/a | source: 25 | |
| radial velocity | 23 km/s | source: 25 | ||
| trigonometric parallax | 0,021 arcsec | ±0,002 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 216,67° | latitude: -8,21° | ||
magnitude:
| visual | 5,6 (observed) | source: 51 |
| photovisual | 5,6 | source: 2 |
| photographic | 5,4 | source: 2 |
spectral information:
| Morgan-Keenan | B3e | source: 25 | |
| B-magnitude | 3,728 ±0,05 | B-V-magnitude | -0,129 |
double/multiple star system information:
| separation between brightest and second brightest component | 9,9 arcsec |
| magnitude difference between brightest and second brightest component | 1 |
| position angle | 125 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 5,4 | B2 | b Monocerotis, 11 Mon, HR 2357, HD 45726, SAO 133317 |
| B | 5,6 | - | b Monocerotis, 11 Mon, HR 2358, HD 45727, |
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 | |
| 18 | Hipparcos Input Catalog Version 2 Annex |
| Turon, C., et al., "The Hipparcos Input Catalog, Version 2," Centre de Donnees Stellaires Information Bulletin, Vol. 43, p. 5, 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 | |
| 51 | Harvard photometry |
| "H" coded (Harvard photometry) magnitudes from the BSC5. | |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 6h 28,8min | DEC: -7° 2' |
| proper motion (J2000) | RA: -0,037 arcsec/a | DEC: 0 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 | 1831 | 87 | 132° | 7,2'' | 4,7 | 5,2 | B3Ve B3ne | STF 919 |
| AC | 1831 | 25 | 125° | 9,9'' | 5,1 | 6,1 | B3Ve B3e | STF 919 |
| AD | 1878 | 5 | 56° | 25,9'' | 4,7 | 12,2 | B3Ve | BU 570 |
| BC | 1831 | 78 | 102° | 2,5'' | 5,7 | 6,2 | B3Ve B3e | STF 919 |
| 1992 | 107° | 2,9'' | ||||||
| Cc | 1988 | 1 | 141° | 0,3'' | 5,6 | - | - | CHR 167 |
discoverer information:
| discoverer code | discoverer | reference |
| STF 919 | Struve, F.G.W. | - |
| BU 570 | Burnham, S.W. | - |
| CHR 167 | - | - |
notes:
| note | Beta Mon. A,B, and C are shell stars. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 6h 26min 23,7sec | DEC: -7° 0' 0'' |
variability informations:
| magnitute at max. brightness | 3,75 |
| magnitute at min. brightness | |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | BE |
references
| to a study | 671390D (designation: HR 2356/8) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |
additional / editable data
| entry 1 (25.03.00,21:31:44) |
#rel: HR 2356; HR 2357; HR 2358; NSV 2977 |