NSV 19389
| catalogues and names |
| The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) |
| SKY2000 - Master Star Catalog |
| Smithsonian Astrophysical Observatory Star Catalog |
catalogues and names
| catalogues and names | NSV 19389, HR 4729, HD 108250, SAO 251903, CP -62 2742, WDS 12265-6307A |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 12h 26min 30,9sec | DEC: -63° 7' 21'' | ||
| position (2001,18) | RA: 12h 26min 35sec | DEC: -63° 7' 45'' | ||
| position (B1900) | RA: 12h 20min 57,1sec | DEC: -62° 34' 4'' | ||
| proper motion (J2000) | RA: -0,04 arcsec/a | DEC: -0,025 arcsec/a | ||
| radial velocity | 27 km/s note: spectroscopic binaries note: orbital data avaible |
|||
| rotational velocity | 137 km/s (uncertain) (variable) | |||
| galactic coordinates | longitude: 300,12° | latitude: -0,39° | ||
magnitude
| visual magnitude | 4,86 (V on UBV Johnson system) |
spectral / color information
| spectral class | B4IV |
| B-V-magnitude | -0,12 |
| U-B-magnitude | -0,59 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 4,4 arcsec |
| mag difference (of double or brightest multiple) | 0,4 |
| component ID | AB |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Component C of triple system with HR 4730-4731, at 90" CPM. |
| note (category: spectroscopic binaries): | 1.225155d, K 43.1k/s, V0 +8.4k/s, asini 0.726. |
miscellaneous information
| note (category: group membership): | Sco-Cen assoc. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 12h 26min 30,853sec | DEC: -63° 7' 19,17'' | ±0,19 arcsec | source: 16 |
| position (2001,18) | RA: 12h 26min 35sec | DEC: -63° 7' 43'' | JD: 2451975,79 | |
| proper motion (J2000) | RA: -0,0071 arcsec/a | DEC: 0,002 arcsec/a | source: 25 | |
| radial velocity | 27 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 300,12° | latitude: -0,39° | ||
magnitude:
| visual | 4,86 (observed) | source: 25 |
| photovisual | 5 | source: 16 |
spectral information:
| spectral class | B5 | source: 96 | |
| Morgan-Keenan | B4IV | source: 25 | |
| B-magnitude | 4,74 ±0,05 | B-V-magnitude | -0,12 |
| U-magnitude | 4,15 ±0,05 | U-B-magnitude | -0,59 |
double/multiple star system information:
| separation between brightest and second brightest component | 89,8 arcsec |
| magnitude difference between brightest and second brightest component | 3,6 |
| position angle | 204 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 1,33 | B1 | Acrux, a1Crucis, HR 4730, HD 108248, SAO 251904 |
| B | 1,73 | - | a2Crucis, HR 4731, HD 108249, |
| C | 4,86 | B5 | HR 4729, HD 108250, SAO 251903 |
sources:
| 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: 12h 23min 43,095sec | DEC: -62° 50' 43,3'' | ±0,023 arcsec |
| position (2001,18) | RA: 12h 26min 35sec | DEC: -63° 7' 43'' | JD: 2451975,79 |
| position (J2000) | RA: 12h 26min 30,87sec | DEC: -63° 7' 21,06'' | |
| proper motion B1950 (FK4) | RA: -0,0051 arcsec/a | DEC: -0,03 arcsec/a | ±0,005 arcsec/a in RA ±0,005 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0059 arcsec/a | DEC: -0,025 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5,1 (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. |
catalogues
| source catalogue | GC, catalogue number: 16951 |
| Durchmusterung | CP-62 2742 |
| Boss General Catalogue | 16951 |
| Henry Draper Catalogue | 108250 |