m Lupi
| catalogues and names | m Lup, HR 5683, HD 135734, SAO 225638, WDS 15185-4753A |
| constellation | Lupus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 15h 18min 32sec | DEC: -47° 52' 30'' |
| position (J1900) | RA: 15h 11min 34,4sec | DEC: -47° 30' 25'' |
| proper motion (J2000) | RA: -0,026 arcsec/a | DEC: -0,038 arcsec/a |
| radial velocity | 15 km/s | |
| rotational velocity | 308 km/s | |
| dynamical parallax | 0,013 arcsec | |
magnitude
| visual magnitude | 4,27 (V on UBV Johnson system) |
spectral / color information
| spectral class | B8Ve |
| B-V-magnitude | -0,08 |
| U-B-magnitude | -0,37 |
| R-I-magnitude | -0,04 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 1,3 arcsec |
| mag difference (of double or brightest multiple) | 0,1 |
| component ID | AB |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | AB binary. C, 7.17V at 23" CPM. |
miscellaneous information
| note (category: group membership): | Possible Pleiades group; Sco-Cen assoc. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 15h 18min 32,036sec | DEC: -47° 52' 31,25'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0,0019 arcsec/a | DEC: -0,051 arcsec/a | source: 25 | |
| radial velocity | 15 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 326,86° | latitude: 8,05° | ||
| GCI unit vector (J2000) | X: -0,434425 | Y: -0,511053 | Z: -0,741687 | |
magnitude:
| visual | 4,27 (observed) | source: 25 |
| photovisual | 4,2 | source: 16 |
| photographic | 4,3 | source: 2 |
spectral information:
| spectral class | B8 | source: 96 | |
| Morgan-Keenan | B8Ve | source: 25 | |
| B-magnitude | 4,19 ±0,05 | B-V-magnitude | -0,08 |
| U-magnitude | 3,82 ±0,05 | U-B-magnitude | -0,37 |
double/multiple star system information:
| separation between brightest and second brightest component | 1,1 arcsec |
| magnitude difference between brightest and second brightest component | 0,1 |
| position angle | 130 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 4,27 | B8 | m Lupi, HR 5683, HD 135734, SAO 225638 |
| B | 7,19 | A |
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 (J1950) | RA: 15h 15min 2,583sec | DEC: -47° 41' 33,45'' | ±0,036 arcsec |
| position (J2000) | RA: 15h 18min 31,983sec | DEC: -47° 52' 30,44'' | |
| proper motion J1950 (FK4) | RA: -0,0025 arcsec/a | DEC: -0,04 arcsec/a | ±0,007 arcsec/a in RA ±0,005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0026 arcsec/a | DEC: -0,038 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4,4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B8 |
| 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: 20556 |
| Durchmusterung | CD-47 9860 |
| Boss General Catalogue | 20556 |
| Henry Draper Catalogue | 135734 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 15h 18,5min | DEC: -47° 53' |
| proper motion (J2000) | RA: -0,028 arcsec/a | DEC: -0,043 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 | 1836 | 44 | 174° | 2,1'' | 5 | 5,1 | B8V | HJ 4753 |
| 1991 | 130° | 1,1'' | ||||||
| AC | 1836 | 15 | 512° | 22,9'' | 5,1 | 7,6 | - | DUN 180 |
| 1980 | 920° | 23,2'' | ||||||
| BC | 1847 | 6 | 129° | 22,1'' | 5,1 | 7,6 | - | DUN 180 |
| 1960 | 128° | 22,8'' |
discoverer information:
| discoverer code | discoverer | reference |
| HJ 4753 | Herschel, J. | - |
| DUN 180 | Dunlop, J. | - |
notes:
| note | Mu Lup. |