HR 4305
catalogues and names
| catalogues and names | HR 4305, HD 95808, SAO 156421, BD -10 3184, WDS 11032-1118 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 11h 3min 14.9sec | DEC: -11° 18' 13'' | ||
| position (B1900) | RA: 10h 58min 14.7sec | DEC: -10° 45' 44'' | ||
| proper motion (J2000) | RA: -0.07 arcsec/a | DEC: -0.108 arcsec/a | ||
| radial velocity | -8 km/s note: variable radial velocity |
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| galactic coordinates | longitude: 265.03° | latitude: 43.47° | ||
magnitude
| visual magnitude | 5.5 (V on UBV Johnson system) |
spectral / color information
| spectral class | G7-III |
| B-V-magnitude | 0.94 |
double/multiple star system information
| separation | 3.7 arcsec |
| mag difference (of double or brightest multiple) | 5.9 |
| note (category: double and multiple data): | CPM. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 11h 3min 14.872sec | DEC: -11° 18' 12.46'' | ±0.19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0.0057 arcsec/a | DEC: -0.102 arcsec/a | source: 25 | |
| radial velocity | -8 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 265.04° | latitude: 43.47° | ||
magnitude:
| visual | 5.5 (observed) | source: 25 |
| photovisual | 5.3 | source: 16 |
| photographic | 6.6 | source: 2 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | G7-III | source: 25 | |
| B-magnitude | 6.44 ±0.05 | B-V-magnitude | 0.94 |
double/multiple star system information:
| separation between brightest and second brightest component | 3.7 arcsec |
| magnitude difference between brightest and second brightest component | 5.3 |
| position angle | 271 ° |
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 (B1950) | RA: 11h 0min 44.733sec | DEC: -11° 1' 56.96'' | ±0.033 arcsec |
| position (J2000) | RA: 11h 3min 14.946sec | DEC: -11° 18' 12.72'' | |
| proper motion B1950 (FK4) | RA: -0.0051 arcsec/a | DEC: -0.114 arcsec/a | ±0.008 arcsec/a in RA ±0.007 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.0048 arcsec/a | DEC: -0.108 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | K0 |
| 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: 15188 |
| Durchmusterung | BD-10 3184 |
| Boss General Catalogue | 15188 |
| Henry Draper Catalogue | 95808 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 11h 3.2min | DEC: -11° 18' |
| proper motion (J2000) | RA: -0.083 arcsec/a | DEC: -0.109 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 |
| - | 1908 | 4 | 271° | 3.7'' | 5.5 | 10.8 | G8III-IV | A 1774 |
discoverer information:
| discoverer code | discoverer | reference |
| A 1774 | Aitken, R.G. | - |