p Lupi
| catalogues and names | p Lup, HR 5605, HD 133242, SAO 225426, WDS 15051-4703A |
| constellation | Lupus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 15h 5min 7,2sec | DEC: -47° 3' 4'' |
| position (J1900) | RA: 14h 58min 18,4sec | DEC: -46° 39' 35'' |
| proper motion (J2000) | RA: -0,02 arcsec/a | DEC: -0,019 arcsec/a |
| radial velocity | 5 km/s note: spectroscopic binaries |
|
| rotational velocity | 161 km/s (uncertain) (variable) | |
| dynamical parallax | 0,009 arcsec | |
magnitude
| visual magnitude | 4,72 (original HR magnitude) |
spectral / color information
| spectral class | B5V |
| B-V-magnitude | -0,14 |
| U-B-magnitude | -0,59 |
| R-I-magnitude | -0,11 |
double/multiple star system information
| separation | 1,8 arcsec |
| mag difference (of double or brightest multiple) | 0,1 |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Binary with HR 5606. Colors for combined light. Blended mag. 3.88V. vsini for combined light. |
miscellaneous information
| note (category: group membership): | Member of the local association (Pleiades group); Sco-Cen assoc. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 15h 5min 7,158sec | DEC: -47° 3' 4,61'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0,0023 arcsec/a | DEC: -0,03 arcsec/a | source: 25 | |
| radial velocity | 5 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 325,33° | latitude: 9,93° | ||
| GCI unit vector (J2000) | X: -0,470902 | Y: -0,492423 | Z: -0,731964 | |
magnitude:
| visual | 4,72 (observed) | source: 25 |
| photovisual | 3,4 | source: 16 |
| photographic | 4,6 | source: 2 |
spectral information:
| spectral class | B5 | source: 96 | |
| Morgan-Keenan | B5V | source: 25 | |
| B-magnitude | 4,58 ±0,05 | B-V-magnitude | -0,14 |
| U-magnitude | 3,99 ±0,05 | U-B-magnitude | -0,59 |
double/multiple star system information:
| separation between brightest and second brightest component | 1,6 arcsec |
| magnitude difference between brightest and second brightest component | 0,2 |
| position angle | 68 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 4,72 | B5 | p Lupi, HR 5605, HD 133242, SAO 225426 |
| B | 4,82 | B5 | p Lupi, HR 5606, HD 133243, SAO 225426 |
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 1min 42,169sec | DEC: -46° 51' 24,82'' | ±0,022 arcsec |
| position (J2000) | RA: 15h 5min 7,184sec | DEC: -47° 3' 3,99'' | |
| proper motion J1950 (FK4) | RA: -0,0019 arcsec/a | DEC: -0,021 arcsec/a | ±0,004 arcsec/a in RA ±0,003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0019 arcsec/a | DEC: -0,019 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B5 |
| 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: 20271 |
| Durchmusterung | CD-46 9773 |
| Boss General Catalogue | 20271 |
| Henry Draper Catalogue | 133242 The "SAO Catalog" entry refers to two consecutive HD numbers, the lower of which is given. |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 15h 5,1min | DEC: -47° 3' |
| proper motion (J2000) | RA: -0,023 arcsec/a | DEC: -0,022 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 |
| - | 1835 | 80 | 111° | 0,8'' | 4,6 | 4,8 | B5V | HJ 4728 |
| 1990 | 68° | 1,6'' |
discoverer information:
| discoverer code | discoverer | reference |
| HJ 4728 | Herschel, J. | - |
notes:
| note | Pi Lup. Both components are spectroscopic binaries. |