z1Antliae
| catalogues and names | z1Ant, HR 3780, HD 82383, SAO 200444, WDS 09308-3153B |
| constellation | Antlia |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 9h 30min 45,4sec | DEC: -31° 53' 29'' |
| position (J1900) | RA: 9h 26min 28,7sec | DEC: -31° 27' 3'' |
| proper motion (J2000) | RA: -0,013 arcsec/a | DEC: -0,026 arcsec/a |
| radial velocity | -3 km/s | |
| dynamical parallax | 0,001 arcsec | |
magnitude
| visual magnitude | 7 (V on UBV Johnson system) |
spectral / color information
| spectral class | A2V |
| B-V-magnitude | 0,09 |
| U-B-magnitude | 0,09 |
double/multiple star system information
| separation | 8 arcsec |
| mag difference (of double or brightest multiple) | 0,7 |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | CPM with HR 3781. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 9h 30min 45,79sec | DEC: -31° 53' 28,8'' | ±0,76 arcsec | source: 18 |
| proper motion (J2000) | RA: 0,0017 arcsec/a | DEC: -0,029 arcsec/a | source: 25 | |
| radial velocity | -3 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 260,7° | latitude: 14,07° | ||
| GCI unit vector (J2000) | X: -0,675315 | Y: 0,514624 | Z: -0,52831 | |
magnitude:
| visual | 7 (observed) | source: 25 |
| photovisual | 5,1 | source: 16 |
spectral information:
| spectral class | A0 | source: 29 | |
| Morgan-Keenan | A2V | source: 25 | |
| B-magnitude | 7,09 ±0,05 | B-V-magnitude | 0,09 |
| U-magnitude | 7,18 ±0,05 | U-B-magnitude | 0,09 |
double/multiple star system information:
| separation between brightest and second brightest component | 8 arcsec |
| magnitude difference between brightest and second brightest component | 0,6 |
| position angle | 212 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 6,18 | A0 | z1Antliae, HR 3781, HD 82384, SAO 200445 |
| B | 7 | A0 | z1Antliae, HR 3780, HD 82383, SAO 200444 |
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 | |
| 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 | |
| 29 | SAOJ2000 |
| SAO on FK5 at J2000, 1989 | |
data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)
position and proper motion:
| position (J1950) | RA: 9h 28min 36,972sec | DEC: -31° 40' 13,06'' | ±0,057 arcsec |
| position (J2000) | RA: 9h 30min 45,414sec | DEC: -31° 53' 28,71'' | |
| proper motion J1950 (FK4) | RA: -0,0013 arcsec/a | DEC: -0,029 arcsec/a | ±0,011 arcsec/a in RA ±0,008 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,001 arcsec/a | DEC: -0,026 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 7,2 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | A0 |
| 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: 13135 |
| Durchmusterung | CD-31 7355B |
| Boss General Catalogue | 13135 |
| Henry Draper Catalogue | 82383 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 9h 30,8min | DEC: -31° 53' |
| proper motion (J2000) | RA: -0,001 arcsec/a | DEC: -0,07 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 |
| - | 1836 | 26 | 210° | 8'' | 6,2 | 6,8 | A1V A1V | DUN 78 |
| 1985 | 212° | - |
discoverer information:
| discoverer code | discoverer | reference |
| DUN 78 | Dunlop, J. | - |
notes:
| note | Zeta (1) Ant. |